VOL UME 1
COPYRIGHT APPLIED FOR
PUBLIS PUB LISHED HED 1977
CON
NTIAL
FACTUAL REPORT
S C ~ E M A TICS TICS ETC. UPDATED QUARTERLY PRICE $12.95
SECRET
C.B.
T h i s book dedicated a v i d C B ' e r s , b o t h young United S t a t e s , today, future
old,
those
generations.
R.L.
CONTENTS
TAB-LE OF
INTRODUCTION
................................
CRYSTAL CROSS REFERENCE
LETTER
CHART
SPECIFIC GENERAL
GUIDE
...............
FOR CRYSTAL CORRELATION
RADIO MODIFICATIONS
INFORMATION
........
............... 19
........................ 63
S e c r e t C.B.
Volume On
Published Nov.,1977
Ne
issues
quarterly
Mail Order only
inquiries Address any and with return address
Selman E n t e r p r i s e s
8189 Corpus C h r i s t i , Texas 78412 O.
Box
IMPORTANT:
READ THIS FIRST
INTRODUCTION
this
information
used
book
exceed F.C.C. s p e c i f i c a t i o n s , i n power, modulation,
This book
CLASS D RADIO.
factual report
such
applied
frequency spectrum, e t c .
do t h i s
illegal
case,
information,
radios
intended
FO
EXPORT ONLY.
better
familiar with electronics,
check
advise with your
restrictions,
center,
More i n f o r m a t i o n , in future
issues,
T h i s book w i l l obtained
local electronics
etc.,
concerning your radio.
other units will
forthcomming quarterly basis.
published
found
CB
book s t o r e ,
t h r o u g h y o u r l o c a l CB s t o r e
distributor,
sending $12.95 SPECIAL EDITION FOR SPACE RADIO SUPPLY CO. OF HOUSTON 3550 EAST T.C. JESTER HOPS TO TEXAS 77018 PHONE (713)688-4594 (STOCKING REP.)
WARNING: BOOK
ARE
ILLEGAL
THIS MODIFICATIONS EXPORT USE ONLY.
FO ON
CLASS
RADIO
Before attempting
repairs or modifications, sure involved tuning techniques familiar with various involved c i r c u i t ~ within radio. tuning proper tuning wrong c i r c u i t s result your radio. doubt, consult s e r i o u s damage there with qualified technician before proceeding.
that
THINGS TO REMEMBER: "AHHH" Always plastic type of tuning tools. avoid whistling this will s o u n d , when t u n i n g , maximum p o w e r w i l l some give f a l s e readingTuning times r e s u l t backwards modulation, so always keep an percent of modulation while t u n i n g . When other s i m i l a a t t a c h i n g e x t e r n a l c r y s t a l boxes units, ma cause remember t h a t lead inductance occurs, improper frequency short g e n e r a t e d . Keeping l e a d s t r a n s m i t t e r s e c t i o n , along possible close more proper t e s t with will result n o t e d t h a t some t y p e s must a l s o accurate results. lock f r e q u e n c y , when t a k e n radios will f a i l higher l e v e l frequency spectrum. These w i l l r e q u i r e complete technician. Another point remember re-alignment S t a n d i n g Wave R a t i o (SWR) w i l l become more that raised. higher operating frequency critical FEW
MOBILE ANTENNA SECRETS: Running d e f i n i t e l y recommended longer range. whip FRANCES INDUSTRIES makes DB g a i n . whip (98") which recornmende w i t h t h i s a n t e n n a , Co-phase 22 RG-58 c o a x V.an O r d t makes AUDIO KING required OI a n t e n n a , which FILLED CENTER LOAD. T h i s a n t e n n a DB g a i n shown better signal-to-noise o t h e r a n t e n n a s . ratio than
CRYSTAL
CROSS
REFERENCE
GUIDE
(COURIER CON'T)
BROWNING
Eaglette T.TD
..........
•••••••••••••••
SST . . . . . . . . . . . . . . .
Gladiator
............
R a n ~ e r
23
............
spartan
..............
Rebel ................ Redball ..............
Brownie . . . . . . . . . . .
CLARICON
Royalle .............. TR 2 • • • • • • • • • • • • • • • •
Traveller ............ 23 • • • . • • • • • • • • • • • • • •
Intruder .......... Pirate ............ Privateer ......... 30850 . . . . . . . . . . . . .
23
••.••••••••••..•••
CRAIG
COBRA
4201
.................
................
21
................
20
.•........•..•..
23
................
25
................
2
28
••••••••••..•••
Special
Demco S a t e l l i t e
......
ECHO
..............
8A
29
DEMCO
9 9 ••.•••••••••••••••.
...............
•••••••.•.•••••.
8
•••••••••••••••. Cam 89 . . . . . . . . . . . .
FANON
Fare Fare
............... ...............
(old) .......... 132A . . . . . . . . . . . . . .
135(old)
FT
.........
80
.........
.............. .••••••••.••..•••.
..........
135A . . . . . . . . . . . . .
80
••••••••••••••••••
90
..................
...............
GEMTRONICS
............... ...............
27
................
Ca
............
TX
................
GTX
98
88
23 36
GTX
............... ...............
2300 2325
GTX
COURIER Cadet
Special
............. .............
HY-GAIN .............
Caravelle
.........
Centurion ......... Chief .............
Citation .......... ....... Classic Comet . . . . . . . . . . . . .
Conqueror .........
....... Classic Crusier ...........
67
••••••••••••••••••
..................
672••••••••••••
••
....•••..•••.•.••. •••••••••••••••.•.
67 4A
.................
674B
•...•.•..•.•.....
.T
JOHNSON
(LAFAYETTE CON'T)
.........•.•.. ....•....•.......
3A
..•.............
123B . . . . . . . . . • . . . . • .
123SJ
SSB-SO
•••....••.••..••
.............
•••••••••••••••• ................
...............
Telstat
23
.........••.....•
Telstat
2 ....•..•.... 1023 •.•...•... 7S . . . . . . . • . . . .
124M.;,
....••....••..
Telstat
...........•.....
Telstat
.••.....•......•.
Micro
•.•.•.••••••
••••...•••...
52
•••••••••••••••••••
...•.....•...•...
62
•••••••••••••••••••
..........•••.•.•
Telstat
2SA • . . . . . . . • • •
.•..•.....•••....
Telstat
SO . . • • • • • • • • • •
..................
SO
LCB-SO Micro S 2
32 3A
.......•....•.••
••..
HB
23/23A .•...•...•.•.
Telstat
...........
3S • • • • • • • • • • • . • • • • •
D y n a - c o m 23
.•...•....•
KRACO
MARK
KCB KCB
2320 234S
..•..•.......
2310 2330
...•...•.... .....•....•.
•...•...•.•••••.
L a n c e r 23
.•..•.•......
.......•..•..•.•
..•......•.
....
KRIS Valiant
2
SSB-46
•............
••••••••••••••••••
HC-2S . . . . . . . . . . . . . • . 23 . . • . . . . . . . • . • • • . • ........•.....
Victor
...•..••.•.
Vega . . . . . . . . . • . • . . . . Echo 9 9 ' e r • • • . • . . • • • XL-23 • • . . . • • . . • • . • • • X L ~ 7 0 SS . • • • • • . . • . •
Ventura
.•.••••••.•••
LAFAYETTE CCB-SO . • . • . • • • • • • • • • C o m s t a t 2SA . . . . . . . . . C o m s t a t 2S . . . . • • . • . .........•..•. Mark M a r k VI . . . . • • • • • • C o m s t a t 3S . . . . . . • • . • C o m p h o n e 23 • . . . . • • • . HB- S 2 S . . . . . . . . . . . • . . HB-700 • • • . . • • • • • • • • • SSB-100 • . • . . . • . . . • • . Telstat
..•..••••
Telstat
.........
MIDLAND
13-765 ........••••.... 13-790 .••..••..•.•••.• 13-795 ...............• 13-796 ..•...•••••....• 13-853 .............••• 1 3 - 8 6 1 •.••..•.•••.•.•• 13-857 .••••......••••• 1 3 - 8 6 2 •••••••..•••.••• 13-862B •...••.•••••••• 13-863 ..•••..•.••..•.. 13-864 •.•......•••.••• 13-865 •..••••..•.••.•. 13-866 •.•.•.•.•...•••. 13-867 ••••••...••.•... 13-868 •.•..••••.•••••• 13-869 ••.....•.••••••. 13-870 .••.•••.••..•••. .••.•...•.••••••
13-863B ...•...•.•.•..• 13-872
13-873
................
•.••.••.••••.••.
•.•.•••.•..•...•
13-876 •••.•..•...•..•. 13-877 .••..•.••....... 13-878 ••.•.•.••.•••••• 13-879B ..•.••.••••.... 13-880 ••..••.•.......• 13-880B ••...•••.••••.• 13-881B ..•.•.••••.•••• 13-882 •••...•.••.••••• 13-883
................
(MIDLAND CON'T)
(PEARCE SIMPSON CON'T)
13-885 . . . . . . . . . . . . . 13-887 . . . . . . . . . . . . . 13-890 . . . . . . . . . . . . . 13-892 ............. 13-893 .......••.... 13-894 .......••.... 13-895 . . . . . . . . . . . . . 13-896 . . . . . . . . . . . . . 13-897 ..........•.. 13-898 ........•.... 13-898A .........•.. 13-898B . . . . . . • . . . . . 13-899 .......••...• 13-976 . . . . . . . • . . . . .
Puma 23 . . . . . . . . . . . . . . Pussycat .............. Simba . . . . . . . . . . . . . . . . . T i g e r 23 . . . . . . . . . . . . . Tiger ................. Tomcat . . . . . . . . . . . . . . . . Tomcat ( l a t e ) . . . . . . . . .
PACE ................
123A . . . . • . . . . . . . . . • ................. •.•......•......
14
................ •.•..•....•.....
14
2301
..............
..................
S u p e r Lynx . . . . . . . . . . . .
PENNYS 23 . . . . . . . . . . . . . Golden P i n t o ........•. Pinto
981-3445 . . . . . . . . . . . . . . 981-6051 . . . . . . . . . . . . . . 981-6075 . . . . . . . . . . . . . . 981-6210A . . . . . . . . . . . . . 981-6213 •••.......•... 981-6220 . . . . . . . . . . . . . . 981-6240 . . . . . . . . . . . . . . 981-6Q60 . . . . . . . . . . . . . .
................ ..•.......•..•••
1000B . . . . . . . . . • . . • . OM
.......•...•.•
1023B . . • . . . . • . • . . . . 2376 . . . . . . . • . . . . . . . 2300
...............
2300 DX • • • • • • • • • • • • • B-76
•..........
Sideta1k
SS
Guardian
l023
Sideta1k
RAY
JEFFERSON
CB-405 CB-705
................ ................
RAYTHEON
Ramcom
............
...•.•. ...•.•.••.•
23
REALISTIC
...•.•.•
PAL R o a d r u n n e r •....•••• Coyote .•..••••••.••
PEARCE SIMPSON A l l e y c a t ..•.•.••••• B e a r c a t ...•..•••.••
Bengal . • • • • • • • • • • . . B o b c a t ...•••••••.•. B o b c a t 23D • . • • • • • . • Cheeta • • . . • . • • • • • • • Cougar ( o l d ) .••••.. Cougar (new) • • . • • • • C o u g a r 23 . . . . . . • . . Lynx . . • • . . • . . • • • • • • Panther .....•••.•.. Puma . • . . . • • . . . • • . . •
American.23 ....•...... M i n i 23 . . . . . . . • . . . • . • . ............ Navaho .........•.....
TR TR TR TR
•.........••.•••
3A
23 23
TR TRC
.......•..•••••
•..........•... •......••••.•••
.•.....•.....••.
24B;
.......•.••.••
TRC24C
.............••.
TRC
••••••••••••••••
25
TRC
TR
• . . . . . . . . . . . . . . .
46
..•.••.••.......
TRC
...........••.••
TR
••••••••••••••••
TRC
.......•....•...
TRC
..•....•...•....
TRC
.......•.....•••
TR
50
•.•...•...••.••.
SBE
REGENCY
F o r m u l a 23
Catalina
............
Brute .................. Catalina ............... Cortez .................
................ ................ ................
BE
................
BE
Imperial Imperial
•.••.•••••••••••••
.......•.....•...
Console
SBE SBE SBE
.............. ...........
Range Gain . . . . . . . . . . . . Range Gain .....
......
CB
..........•....
CB
......•.....•.
Sidebander Sidebander
.•........ ........•
Sierra .....•........... Trinidad ............•.. 7 C •••••••••••••••••••
ROBYN
747B . . . . . . . . . . . . . . . . . . BB-123 . . . . . . . . . . . . . • . . GT-7 . . . . . . . . . . . . . . . . . . J-123 LB 2
..•.....•.
Console ................ Coronado ...•........... ..........•. Coronado
S p r i n t 23 . . . . . . . . . . . . . CR-123 . . . . . . . . . . . . . . . . CR-123B . . . . . . . . . . . . . . . CR-185 . . . . . . . . . . . . . . . .
Cr-142 CR-186 CR-230 Cr-202
1&11
9 C
•••••••••••••••••••
CB
..................
.................
CB
...............•..
•••••••••••••••••
CB
............
SX-I0l
SX-102 T-123B
22
................
CB
.......
..................
................
SEARS
................
..................
...............
TR
•••••••••••••••
DG
30
Sideband
Sears
.••••..•••••.••.•.
GTX-440
Specia1
•...•....
SHARPE
.................
23 . . . . . . . . . • . . . . . . . SX-007 . . . . . . . . . . . . . . . • K-123 . . • . . . • . . . . . . . . . .
WV
CBT 58 . . . . • . • . . . . . . . . • . CBT 50 • • • • • • • • • • • • • • • • CB 5500 • . . . . . . . . . . • . . . . CB
UB
....
...•..•..
ROYCE
SILTRONIX 1 ~ 6 0 0
...•.....•.......
1-601 ................. 1-602 ................. 1-603 . . . . . . . . . . . . . . . . . 1 - 6 0 5 ~
.•.... .•.....
1-606 . . . . . . . . . . . . . . . . . 1-620 ....•............ 1-630 ........•.... S p e c i a l SS SS 1-631 .......•..... SSBl-635
SS 1-640 SSB 1 - 6 5 0
.............
SSB-23 . . . . . . • . • . • . • . . . . A l b a t r o s s ••...•.••..••• Condor .....•........•..
Penguin ..•...•.•.•...•. SONAR FS-23
. . .. . . .. . . .. . . .. . .
3023
•.•.••....•..•.•
••....••.....
............•
SURVEYOR 2400
...................
TEABERRY
DRAKE
•..•.••.•..••..•
Bi
CRYSTALS
HA
..............
C h a r l i e One . . . . . .
TRAC
Mighty ........... Golden 5x5 . . . . . . . . . Scout . . . . . . . . . . . . Tele .............
..................
T ~ - J i n s . . . . . . . . . . . . . . . . . AC
YAESU
Modle T . . . . . . . . . . . . Twin T . . . . . . . . . . . . . Control ..........
E
TRAM
One . . . . . . . . . . . . . . . . . . . AE
D-20l . . . . . . . . . . . . . . AI
HEATHKIT
XL
EX
...............
AD
TEMPO
Diamond ......... Diamond 60 . . . . . . . . . XL
EE
10
. . . . . . . . . . . . . . . . . . . AF
•••••••••••••••
.................
Titan IIA,III,IV
KENWOOD
W-
TS
520,
820, Twins . . . . AG
UNIMETRICS COLLINS
Porpoise
.........
KWM
XTAL
XCB-4 . . . . . . . . . . . . . . XCB-5 . . . . . . . . . . . . . . XCB-6 XC B-
.............. ..............
XCB-lO . . . . . . . . . . . . . XC B - l l . . . . . . . . . . . . . XCB-12 . . . . . . . . . . . . . SEPARATE
RECIEVE
TRANSMIT
CRYSTALS
BROWNING
Eagle Mark Eagle Mark Eagle Mark
SPECIAL
.....
SSB.W
SSB.W-l
OSCILLATOR
CRYSTALS
BROWNING
Eagle Mark
.....
TRAM
Diamond 60 . . . . . . . . . Y&AA&AI BROWNING
LTD
................
Crobra l32A,135
....
&AA&AI
Z&AA&AI 10
2A
, 3 . . . . . . . . . . . . AH
LETTER CHART FOR CRYSTAL FREQUENCY CORRELATION
CRYSTAL FR:I:gOI:NCY 7.9767 .9600 7.9434 7.9267 7.9100 7.8933 7.8766 7.8600 7.8434 7.8267 7.8100 7.7933 7.7767 7.7600 7.7433 7.7267 7.7100 7.7083 14.937 8.759 8.709 8.659 8.609 8.559 8.509 8.459 8.409 8.359 8.309 8.259 8.209 8.159 8.109 8.059 8.009 7.959 7.954 11.0335
14.934
OPERATING
CRYSTAL FREQUENCY
OPERATING
27.605 27.555 27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805 26.800 RC
11.600 11.550 11.500 11.450 11.400 11.350 11.300 11.250 11.200 11.150 11.100 11.050 11.000 10.950 10.900 10.850 10.800 10.795 8.1965
27.605 27.555 27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805 26.800 RC
27.605 27.555 27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805 26.800 RC
~ ' t
)'¢
~ t :
'I':
,': ,': ~ t :
~ ' :
8.1935
12.300 12.250
;': ~ ' :
1. 7 . 6 0 5
12.150 12.100 12.050 12.000 11.950 11.900 11.850 11.800 11.750 11.700 11.650 11.600 11.550 11.500 11.495 7.4925
,': ~ t :
,': 'f:
12
~ ' :
,': ~ ' :
,': ~ ' :
,':
27.555 27.505 2 7 . 4 5 5 ,': 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 2 6 . 9 5 5 ,': 2 6 . 9 0 5 ':I'e 2 6 . 8 5 5 'f: 2 6 . 8 0 5 ,'c 26.800 RC
7.4965
f r e q u e n c i e s marked w i t h reference asterisk purposes o n l y , t h e s e would cause y o u r r a d i o operate a u t h o r i z e d C.B. frequency band, which above and below p r o h i b i t e d by F.C.C. Rules Regulations. Th
'J':
~ ' :
12-. 20
i: ~ t :
,'~ ,,,
CRYSTAL FEEQUENCY
OrERATING
12.340 12.290 12.240 12.190 12.140 12.090 12.040 11.990 11.940 11.890 11.840 11.790 11.740 11.690 11.640 11.590 11.540 11.535 7.4525
27.605 2 7 . 5 5 5 ;t: .t. 27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 ~ ' ~ 26.855 26.805 25.800
12.305 12.255 12.205 12.155
27.605 27.555 27.505 27.455 27.405
RC
1 2 ~ 1 0 5
12.055 12.005 11.955 11.905 11.855 11.805 11.755 11.705 11.655 11.605 11.555 11.505 11.500 7.4915 7.490
*
Refer
27
7.4885
,,,
CRYSTAL
OPERATING
12.405 12.355 12.305 12.255 12.205 12.155 12.105 12.055 12.005 11.995 11.905 11.855 11.805 11.755 11.705 11.655 11.605 11.600 7.3915
27.605 27.555 27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805 26.800
16.565 16.515 16.465 16.415 16.365 16.315 16.265 16.215 16.165 16.115 16.065 16.015 15.965 15.915 15.865 15.815 15.765 1 5 . 7 60 6.030
,t;
35
27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805 2 6 . 8 0 0 "i': RC RC i¢
n o t a t i o n on
First
Page
13
7.3885
RC
27.605 27.555 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805 26.800 RC
CRYSTAL FREQUENCY
17.465 17.415 17.365 17.315 17.265 17.215 17.165 17.065 17.015 16.965 16.915 16.865 16.815 16.765 16.760 9.575 10.030
CRYSTAL
OPERATING
27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.055 27.005 26.955 26.905 26.855 26.805 26.800
23.930 23.880 23.830 23.780 23.730 23.680 23.630 23.580 23.530 23.480 23.430 23.380 23.330 23.280 23.230 23.180 23.130 23.125 14.940 14.937
27.605 27.555 27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805 26.800
RC
27.505 27.455 27.405 27.355 27.305
23.790 23.740 23.690 23.640 23.590 23.560 23.540 23.490 23.440 23.390 23.340 23.290 23.240 23.190 23.140 23.090 23.085
~ t : ~ t ~
--': ~ ' : ~ t ~ ~ t : , ; t ~
~ t ~
;':
20
33.150 33.100 33.050 33.000 32.950 32.900 32.850 32.800 32.750 32.700 32.650 32.600 32.550 32.500 32.495
27.255 27.205 27.155 27.105 27
05
27.005 26.955 26.905
,'¢
26
26.805 26.800
, ' ~
RC notation
First
RC RC
~ ' : ~ ' ( , f ~
~ ' ( ~ t ~
;': 'I:
.f. ,'c
~ t :
22A
98
.'.
OPERATING
Page
6.160
14
27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805 26.800 RC
RC
,f¢
1:
, f ~
,'t
CRYSTAL
FREQUENCY
OPERATING
33.345 33.295 33.245 33.195 33.145 33.095 33.045 32.995 32.945 32.895 32.845 32.795 32.745 32.695 32.645 32.640 10.150
27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805 26.800 RC
33.500 33.450 33.400 33.350 33.300 33.250 33.200 33.150 33.100 33.050 33.000 32.950 32,900 32.850 32.800 32.795 6.460 6.005 i(
,;': ·l:
1: ~ ' : ~ ' : ~ t :
;': ;':
27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155
27.055 27.005 26.955 26.905 26.855 26.805 26.800 RC RC
notation
First
CRYSTAL
OPERATING
35.471 35.421 35.371 35.321 35.271 35.221 35.171 35.121 35.071 35.021 34.971 34.921 34.871 34.821 34.771 34.766 7.976 8.431
27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805 26.800
38.100 38.050 38.000 37.950 37.900 37.870 37.850 37.800 37.750 37.700 37.650 37.600 37.550 37.500 37.450 37.400
27.505 27.455 27.405 27.355 27.305 c h 22A 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805
RC
~ t ~
,;": ~ ' : ~ ' :
~ t :
R C ' ~
;':
,': ,'~
,': ,':
;": ;':
10.150 4.605 11.060
Page
15
10.605
RC RC RC
i(
,': ,'( t J ~
,': ;':
;'c
CRYSTAL FREQUENCY 11.350 11.300 11.250 11.200 11.150 11.100 11.050 11.000 10.950 10.900 10.850 10.800 10.750 10.700 10.650 10.645 8.645
27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805 26.800 RC
16.700 16.650 16.600 16.550 16.500 16.450 16.400 16.350 16.300 16.250 16.200 16.150 16.100 16.050 16.000 15.995 4.795
27.505 27.455 27.405
;':
CRY TAL
I: FATIN
~ ' : ~ t :
..,': ;': ;': ;': ;': ~ ' :
;':
1:
27.305 27.255 27.205 27.155 27.105 27.055 27.005 2 6 . 9 5 5 ;': .'. 26.90 2 6 . 8 5 5 ;': 2 6 . 8 0 5 ;': 2 6 . 8 0 0 ;': RC .'. notation
First
Page
16
ERATING
9.050 9.000 8.950 8.900 8.850 8.800 8.750 8.700 8.650 8.600 8.550 8.500 8.450 8.400 8.350 8.300 8.250 8.245 13.3435 13.3465
27.605 27.555 27.505 2 7 . 4 5 5 -l: 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 2 6 . 9 5 5 .'. 26.905 26.855 2 6 . 8 0 5 .'. 2 6 . 8 0 0 ;': RC ;': RC ;':
38.765 38.715 38.665 38.615 38.565 38.515 38.465 38.415 38.365 38.315 38.265 38.215 38.165 38.115 38.065 38.060 11.270 11.725
27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 26.955 26.905 26.855 26.805 26.800 RC RC
~ t :
~ ' : ~ t :
~ t ~
;': ~ ' :
) ' ~
,':
C:RYSTAL FREgUENCY
OPERATING
7.9791 7.9625 7.9458 7.9291 7.9125 7.8958 7.8791 7.8625 7.8458 7.8291 7.8125 7.7958 7.7791 7.7625 7.7458 7.7291 7.7125 14.934
27.605 27.555 27.505 27.455 27.405 27.355 27.305 27.255 27.205 27.155 27.105 27.055 27.005 2 6 . 9 5 5 ;': 26.905 2 6 . 8 5 5 ,'; .t. 2 6 . 8 0 5 .. RC
26.925 26.915 26.905 26.895 26.885 26.875 26.865 26.855 26.845 26.840 26.835 26.830 26.825 26.820 26.815 26.810 26.805 26.800
2 6 . 9 2 5 1: 26.915 2 6 . 9 0 5 1: 2 6 . 8 9 5 fI 26.885 2 6 . 8 7 5 --': 26.865 26.855 26.845 2 6 . 8 4 0 ;':
27.505 27.495 27.485 27.475 27.465 27.455 27.445
27.505 27.495 27.485 27.475 27.465 27.455 27.445
--':
27.505 27.495 27.485 27.475 27.465 27.455 27.445
27.425 27.415 27.405 27.395 27.385 27.375 27.365 27.355 27.345 27.335 27.325 27.315 27.305 27.295 27.285 27.275 27.265 27.255 27.245 27.235 26.955 26.945 26.935
27.425 27.415 27.405 27.395 27.385 27.375
;':
16.810 16.800 16.790 16.780 16.770 16.760 16.750 16.740 16.730 16.720 16.710 16.700 16.690 16.680 16.670 16.660 16.650 16.640 16.630 16.620 16.610 16.600 16.590 16.580 16.570 16.560 16.550 16.540 16.530
OPERATING
CRYSTAL con't
;':
~ ' : ~ ' :
~ ' :
~ t :
14.937
~ ' :
,': --': ~ t :
;': ~ ' :
~ ' :
2.7.365
27.355 27.345 27.335 27.325 27.315 27.305 27.295 27.285 27.275 27.265 27.255 27.245 27.235 26.955 26.945 26.935
n o t a t i o n on
F ~ r s t
.J':
1:
Page 17
~ ' :
~ ' :
~ t :
~ ' :
~ ' :
6 . 83
~ t :
2 6 . 8 3 0 .'. 2 6 . 8 2 5 'J': 26.820 26.815 26.810 26.805 26.800 ~ ' :
~ ' :
~ t : ~ t :
27.425 27.415 27.405 27.395 27.385 27.375 27.365 27.355 27.345 27.335 27.325 27.315 27.305 27.295 27.285 27.275 27
26
27.255 27.245 27.235 27.225
.t. t>
~ ' : ~ ' : ~ t :
;'; ~ t :
.;: ,': ~ ' :
CRYSTAL FREQUENCY 21.250 21.240 2l.230
21.220 21.210 21.200 21.190 21.180 21.170 21.160 21.150 21.140 21.130 21.120 21.110 21.100 21.090 21.080 21.070 21.060 21.050 21.040 21.030 21.020 21.010 20.990 20.980
CRYSTAL
OPERATING
EAGLE ALSO 27.505 2 7 . 4 9 5 .'. 27.485 27.475 27.465 27.455 ~ ' : 27.445 27.435 2 7 . 4 2 5 -rt': 27.415 27.405 27.395 27.385 27.375 27.365 27.355 27.345 27.335 27.325 27.315 27.305 27.295 27.285 27.275 27.265 27.245 27.235
12.500
~ t :
OPERATING
AA 2 6 . 6 6 5 1 ~ 2 6 . 9 5 5 ~ ' ~
~ ' :
~ t :
42.0000 41.5000 41.0000
~ ' : ~ ' :
38.6000 38.1000 37.6000
16.02 33.52 33.02 32.52
27.505*
27.265
13.100
27.555*
notation
First
27.500 27.000 26.500
2 8 . 0 0 0 ~ ' ~
2 7 . 5 0 0 ~ ' ~
27.000*
27.500 2 7 . 0 0 0 ~ ' ~
AD W W V ~ ' ~
27.500 27.000 26.500
28.000 2 7 . 5 0 0 ~ ' :
2 7 . 0 0 0 ~ ' :
AE AE AE 42.0000 27.500
2 8 . 0 0 0 ~ ' :
13.400
Page
2 8 . 0 0 0 1 ~
2 7 . 0 0 0 ~ ' :
15477.500 15377.500 15277.500 15177.500 15077.500 14977.500
2 7 . 5 5 5 1 ~
27.500 27.000 26.500
AF AF AF 36.3950 27.500 35.8950 27.000 35.3950 26.500
36.3950 35.8950 36.3950
27.265
13.100
AC
41.5000 41.0000
27.295
31.720
AB
AG
AH
AI
O O O ~ ' :
5 0 0 ~ :
27.000 26.500
2 7 . 5 0 0 ~ ' :
27.500 27.000 26.500
28.000
27.800 27.600 27.400 27.200 27.000 26.800
2 8 . 0 0 0 ~ ' :
2 7 . 0 0 0 ~ ' :
2 7 . 5 0 0 ~ ' : O O O ~ ~
27.800* 6 0 0 ~ \ 4 0 0 ~ ' :
27.200'\ 27.000*
27.565'': 27.855
18
SPECIFIC RADIO MODIFICATIONS AN
ADJUSTMENTS*
F.C.C. regulations check and be aware concerning adjustments modifications Class radios before proceeding
19
SPECIfIC RADIO MODIfICATION COBRA 13SXLR/139XLR possible o b t a i n 32 e x t r a c h a n n e l s . R e f e r m o d i f i c a t i o n s h e e t "A". T h i s r a d i o w i l l s l i d e 5KHz, modification to
VOICE LOCK". Power/modulation i n c r e a s e : VR-S, a d j u s t AM w h i l e maximum p o w e r checking forward modulation. C T - 7 , a d j u s t f o r maximum s i d e b a n d o u t p u t . VR-7, ( a u t o m a t i c m o d u l a t i o n c o n t r o l , AM) a d j u s t f o r maximum m o d u l a t i o n . VR-2, c o n t r o l s RF g a i n l e v e l . VR-3, c o n t r o l s s q u e l c h l e v e l . control. VR-12, TX m e t e r VR-14, m o d u l a t i o n m e t e r l e v e l c o n t r o l . COBRA -';6€ MAX vY\ i ) " ' - ~ T . r 6 1 J
f \ 1 ~
d...
a.o'\d
:Jc./de.y
a.. ;l.otKJ1
to
i-t-..e.
I;}.,
Je
tune - + h . a u t o m a t i c m o d u l a t i o n c o n t r o l (AMC) 1 h . ~ maximum m o d u l a t i o n . S.S.B. VR-15, a d j u s t maximum p o w e r achieved Maximum o u t p u t p o w e r o n AM may tuning the various inductive c o i l s ( i e : L-12). VR-12,
;'V\.
)
COBRA
0+
G.1{t Rps;s-fo
Qc-f-, c"
I.\. ....
kJA.'r'T
I\J
,-ro
(5
L-16, L-17, tune maximum AM p o w e r . maximum m o d u l a t i o n . VR-5, t u n e VR-4, c o n t r o l s RF m e t e r a d j u s t m e n t . meter adjustment. VR-l, c o n t r o l s c o n t r o l s m o d ulation meter adjustment. VR-6,
21XLR L-16, L-17, tune maximum AM p o w e r . tune maximum m o d u l a t i o n . controls S-meter adjustment. c o n t r o l s RF m e t e r a d j u s t m e n t .
NOTE: On some models
Cobra r a d i o s , such Cobra 139, crystal capable 27.S00 MHz p l u s attached, further modifications. Refer crystal reference various drawings. charts
BROWNING MARK IV he famous locating
This a 20 Mfd
panel.
(GOLDEN EAGLE)
"Screaming Eagle" sound can be added
front capacitor closest to Mf v o ~ t s . Repalce t h i s with a volts, sound. create
large
http://wtA
20
,ks.com
1\J
jOt...vS
29XLR
L-15, RT-4, RT-2, RT-5,
o".,p.
()
L-15,
(3
...
rl1t.
BOMAN 9 1 0 ,
920,
93
w h o l e , Boman r a d i o s e x i b i t t h a t d i s t i n c t a b i l i t y 25 w a t t s . have an i n c r e a s e d wattage c a p a b i l i t y 10 t h i s brand Further modifications, radio, should t h i s time being developed forthcoming
On
o v e r 130%) VR-2, a d j u s t f o r maximum m o d u l a t i o n (may yellow inductuve c o i l s green Tune maximum p o w e r o u t p u t w i t h f o r w a r d m o d u l a t i o n . NOTE: T h i s r a d i o e ~ i b i t s b e t t e r a d j a c e n t c h a n n e l r e j e c t i o n t h a n more t h a n 98% o f o t h e r b r a n d r a d i o s . COMMANDO
2340
100% m o d u l a t i o n , g r o u n d 47K oh v i o l e t , orange) r e s i s t o r , located near audio modulation transformer; t h i s R-80.
(yellow,
COURIER RED BALL 100% m o d u l a t i o n , c l i p P.C. board.
limiting diode
(D-18)
located
HYGAIN V-674B VR-7,
a d j u s t modulation
100%.
JOHNSON
To i n c r e a s e m o d u l a t i o n , AL
Cc
clip
CR-I1,
(diode)
circuit.
TRC
TI
R-46, Automatic modulation c o n t r o l . Adjust increase modulation. maximun t r a n s m i t t e r p o w e r o u t p u t . R-55, Adjust R - 1 0 2 , SSB (ALC) a u t o m a t i c l e v e l c o n t r o l , a d j u s t f o r maximum SSB p o w e r .
REALISTIC TRC-57 Ca
VR-12, AM (AMC) a d j u s t maximum m o d u l a t i o n . maximum m o d u l a t i o n . VR-13, a d j u s t d i o d e D31 ( a l s o i n c r e a s e s m o d u l a t i o n ) VR-25, SSB (ALC) a d j u s t maximum SSB p o w e r . V R - 2 l , AM p o w e r ( a d j u s t f o r maximum AM p o w e r ) .
TEABERRY STALKER VR-6, AM a d j u s t m e n t maximum p o w e r . maximum m o d u l a t i o n . V R ~ 1 3 AM m o d u l a t i o n a d j u s t VR-12, SSB a d j u s t maximum SSD p o w e r .
REALISTIC TRC-452 VR-207,
AM
AMC a d j u s t
for
100% m o d u l a t i o n .
21
PRESIDENT PRESIDENT WASHINGTON
40
channel
SSB
Base.
maximum m o d u l a t i o n . VR-7, (AMC) a d j u s t VR-8, AM t r a n s m i t l e v e l , a d j u s t f o r maximum t r a n s m i t power. VR-9, t r a n s m i t f r e q u e n c y a d j u s t m e n t , DO NOT TUNE. CT7, a d j u s t f o r maximum SSB p o w e r . addition Refer m o d i f i c a t i o n s h e e t "A"
32 c h a n n e l s . NOTE: T h e s e m o d i f i c a t i o n s
STANDARD COMMUNICATIONS
AMC,
also apply
HORIZON
d i o d e D-218
t h e P r e s i d e n t GRANT.
29
circuit
100%
modulation.
XTAL XSSB-I0 Jump
cathode
ground
D-
increase modulation.
HYGAIN obtain a d d i t i o n a l channels with t h i s r a d i o , l o c a t e switch. jump p i n s 1&11 w i t h the I.C. chip (PL-l) Channels 17-23 w i l l remain normal, others will follows: To
CHANNEL
FREQUENCY 27.165 27.175 27.185 27.205 27.215 27.225
27.255
CHANNEL 10 12 13 15 16
22
FREQUENCY 27.265 27.275 27.285 27.305 27.315 27.325 27.335 27.355
MODIFICATION SHEET "A
(COBRA 138XLR/COBRA 139XLR) (PRESIDENT WASHINGTON/GRANT) (ROBYN GT-440D)
Shifting transmitter frequency, RIFlER/VOICE LOCK c o n t r o l .
owing s t e p s w i l l a l l o w frequency KH shifted erating standard
E l i m i n a t e D-
(lS2 ohm) from PC b o a r d Remove R-119 ( cathode side D-32 place (WZ06l) conjun position R-166 b o t t o m sOde RPC b o a r d . R-166, By short circuit f r e q u e n c y KH a b o v e w i l l annel KH b e l o w . (,vt\ P > ~ etA d... ~ t 0 0 \ ) adding 32 e x t r a c h a n n e l s . extra switch (transfer circuit) position. place IN60 d i o d e Take place between ex t r a switch C7 (UPK858C), 21 diode cathode side facing that
Locate
toward
IC7, island of place #19, r e g i s t e r 4.7K ohm betweem tw islands which were s e p e r a t e d . empty p o s i t i o n lead wire between Connect switch s e p e r a t e d i s l a n d from
#19. (e) Realign
transmitter that there min imum d i f f e r a n c e RF o u t p u t power b e t w e e n #40. c h a n n e l s #1 Make same a d j u s t m e n t f o r r e c e i v e r s e n s i t i v i t y . Check P.L.L. c i r c u i t also. ne he f o l l o w i n g a r e t h e f r e q u e n c i e s
channels:
Channel
F r e q .. (MHz) 27.455
12 13
15 17 18 19
20 21 22
46 47 48 50 51
55 56 57 85 05 61 62
Channel 23
24 25 26 27 28 29 30
31
32 33 34 35 36 37 23
Freq-(MHz)
27.655
63 64 65 67 68 69 70 71 72 73 45 75 76 77
Ch
38 39 40
(MHz) 27.785 79 05
WV-23 CHANNELS TO
ROBYN
ADDING
Remove u n i t f r o m
from
front
Remove together.
Solder AN
Solder
mount
Solder
center
Connect
switch
locate
cabinet channel selector
a
ground f o i l
board.
edge
w i r e s from
ANL
Tape them
UNITS
ROBYN
switch
bend them
piece hookup w i r e f r o m board. switch t o t h e ground piece
a
shown.
wire
b l a c k w i r e from ANL s w i t c h .
wire from
shown.
black wire
s o l d e r them
way.
bottom
#4204 M i l l e r c o i l
channel selector to coil
ANL
unit. antenna channel power selector c h a n n e l l with switch AN received. adjust coil u n t i l channel sition, available, adjust the transmit frequency counter frequency 26.975.
Connect
u n i t w i l l no
c h a n n e l s 3A t h r o u g h o f t h e (A unit will position selector switch
transmit
23A. When ANL s w i t c h be normal c h a n n e l s . With channels 7, 11, 15, 19, used channels unit. s e v e n ne
unit described here WV-23, Robyn u n i t s w i t h ingenuity.
almost
24
adding
this
switch
done little
Wl/-23 W\R,€s
r1tlcM
Abb
~ ~ L .
(!.C'L.
i, S C L b E ~
G t 1 t O a A ~
--------25
-...
k: O'/C-E.
C . O t . . W E ~ ' Q " : '
\
- \ - \ . \ G . l o ( E ~
26
40
BRO\NNING SABRE CHANNEL MODIFICATION
L o o k i n g down i n t o r i g h t hand channel unit corner selector board, locate solder jumper wires shown.
O O C O 0000--
....
used 40 c h a n n e l s w i t h frequencies channel readout corresponding correctly. unit
no
EXTENDED FREQUENCY COVERAGE
Locate the terminals board shown.
Solder
Mount a panel
main
o f hookup w i r e seventh terminal first m a i n b o a r d a s a l s o shown. pieces
SPST
switch
solder the switch.
rear
wires
u n i t w i l l no work on with 5with channels, p o s i t i o n , w i l l extend w a r d more t h a n 50 c h a n n e l s .
NOTE:
This modification w i l l will
affest
extend
units
27
channel readout
operation.
40
1 3 2 ~ A , l35-A 15KC SLIDER
COBRA
c::::J
cabinet Remove u n i t f r o m varible potentiometer locate next c r v s t a l bank.
c::::::>
c=:> )(-1 c:::> ) ( ~ d
Adjust control fully counter c l o c k w i s e a s shown.
c:::> A-Z
c:::>
NOTE:
u n i t w i l l no
adjustment
move
clarifier.
unit shown here shown l a t e r t h i s book.
20
KC
down f r e q u e n c y w i t h c r y s t a l board
probably a
model.
This
13KC SLIDER (SIDEBAND UNIT)
COBRA
13
AblU.SY.
,
YRS
NOTE:
u n i t from Remove l o c a t e VR-5.
cabinet
A d j u s t VR-5 wise r o t a t i o n .
clock-
.ll2!
~ ~ , = ",>
fully
adjust
VRI
u n i t w i l l no a p p r o x i m a t e l y 13
move f r e q u e n c y w i t h 15KC.
28
clarifier control
COBRA
135-B
15KC SLIDER
t-----
....
""-... . . . ............
-
-
-
=
Remove u n i t from cabinet c r y s t a l board locate screws holding remove
unit over Carefully turn small p i e c e o f wire across solder t h e p o i n t s shown.
c r y s t a l board back adjust three place of the board controls shown.
Re-mount
NOTE:
\1 Tg
SlOE 01:" CltVSrA.&- BoII\1t:l>
29
There
many v e r s i o n s c r y s t a l board various c h a n g e s . shown design m o s t common here be changed others same m a n n e r .
COBRA
l5KC SLIDER SIDEBAND
BASE
trace Remove u n i t f r o m c a b i n e t brown w i r e from clarifier connection control printed c i r c u i t board.
Solder tw shown.
PF
points
capacitor across
board as
unit over l o c a t e VR5 the side of the unit rotate f u l l y c l o c k w i s e a s shown.
Turn
from
u n i t w i l l no move 20KC adjusting clarifier. center
(see note)
NOTE:
channel s e l e c t o r changed different channel with c l a r i f i e r down f r e q u e n c y transmit will quit.
receive
alarmed a t t h i s simple s h i f t clarifier clockwise p o s i t i o n w i l l operate again. This make will prenormal c o n d i t i o n sent unstability problem Do
unit.
30
COQRIER CENTURION PLL, GLADIATOR PLL PEARCE SIMPSON SIMBA PLL, CHEETAH PLL 39 CHANNEL MODIFICATION
cover Remove l o c a t e PLL right side. top cover
Remove
PLL
unit
PLL
rubber block
integrated
Solder wire
circuit.
small piece long
18 circuit,
integrated this will
back towards front panel
right side.
wire through left
Push side
hole
install cover
Solder the other back p a n e l
t h i s wire unit.
switch
wire Solder another piece center white wire connected other shown.
NOTE:
Be c a r e f u l when s o l d e r i n g making s u r e to short
CHANNEL USED
12
FREQUENCY 2 7 . 4 3 5 MHz 2 7 . 2 5 5 MHz 2 7 . 2 6 5 MHz 2 7 . 2 7 5 MH 2 7 . 2 8 5 MHZ 2 7 . 3 0 5 MH 2 7 . 3 1 5 MH 2 7 . 3 2 5 MHz
wire other pins.
CHANNEL USED
15
20
21 22
31
rubber block box.
switch
mount
switch channel selector integrated
circuit
FREQUENCY 2 7 . 3 3 5 MH 2 7 . 3 5 5 MHz 2 7 . 3 6 5 MHz 2 7 . 3 7 5 MHz 2 7 . 3 8 5 MHz 2 7 . 4 0 5 MHz 2 7 . 4 1 5 MHz 2 7 . 4 2 5 MHz
PEARCE SIMPSON HY-GAIN INCREASED CHANNEL CAPABILITY PLL UNITS ONLY
Remove c a b i n e t from u n i t locate channel lector. ..
Wire a SPDT s w i t c h w i t h center shown.
position
switch s m a l l PA s p e a k e r j a c k
Mount
hole cabinet.
rear
u n i t may many t i m e s NOTE: T h e s e u n i t s h a v e b e e n c h a n g e d perform e x a c t l y chart frequencies. case, dependent integrated circuit frequencies covered used. have noticed t h a t units that l a b e l e d OIA schematic w i l l units labeled 2 7 . 4 2 5 MHz. 2 7 . 2 7 5 MHz. 02A w i l l o n l y
CHANNEL
4
CHANNEL
FREQUENCY 2 7 . 1 6 5 MHz 2 7 . 1 7 5 MHz 2 7 . 1 8 5 MHz 2 7 . 2 0 5 MHz 2 7 . 2 1 5 MHz 2 7 . 2 2 5 MHz 2 7 . 2 3 5 MHz 2 7 . 2 5 5 MH 2 7 . 2 6 5 MHz 2 7 . 2 7 5 MHz 2 7 . 2 8 5 MHz 2 7 . 3 0 5 MHz 2 7 . 3 1 5 MH 2 7 . 3 2 5 MH 2 7 . 3 3 5 MH 2 7 . 3 5 5 MHz
32
FREQUENCY 2 7 . 3 6 5 MHz 2 7 . 3 7 5 MHz 2 7 . 3 8 5 MHz 2 7 . 4 0 5 MHz 2 7 . 4 1 5 MHz 2 7 . 4 2 5 MHz
20KC
HY-GAIN 62 SLIDER AND POWER
INCREASE
top cover Remove b o t t o m locate range limiting fine tune c o n t r o l . resistors
Solder jumper wires a c r o s s
them
shown.
wire Locate front power t r a n s f o r m e r
~
move
NOTE:
c
t
l
y
to
behind
empty
This modification w i l l r e sult 20KC c o v e r a g e fine
tune control
power o u t p u t
about
33
shown.
20
watts.
SSB
35 l5KC SLIDER
JOHNSON
Remove t h e c a b i n e t from over unit turn bottom s i d e circuit
board.
small square small index card card against Place match right side of back unit notice p o i n t s showing through hole.
Solder
small piece
across
board as
wire
points tw shown.
s m a l l SPST s w i t c h s o l d e r a lOUH R F c h o k e
(4) Obtain
shown.
across
purple wire ~ h a n n e l
selector ends a c r o s s
Drill small hole front panel s w i t c h a s shown.
slot
from
solder switch.
mount
cover
the cabinet with nibbling allow tool hacksaw switch come t h r o u g h .
eLl/
' P t J ~ P t
bJ/K:£ iSOLIJ£iZ
1,0 ~ W l r C H tft$J..,/{J££
NOTE:
CB, PA s w i t c h eliminated.
rewired
34
added switch
MIDLAND 13-898B 15KC SLIDER
Remove b o t t o m c o v e r c i r c u i t path locate r i g h t hand side c r y s t a l bank j u s t behind front shown. With panel X-ACTO k n i f e o r s i n g l e edge a l s o shown. path razor blade, center Solder
Drill mount this book.
M i l l e r #4205 a d j u s t a b l e c o i l a c r o s s board t h a t have j u s t been c u t . small hole left s m a l l SPST s w i t c h w i t h
points
unit edge b e t t e r view screw. this f o u n d u n d e r SBE C o n s o l e later front
wires across s o l d e r them Solder switch choke points across board as shown. keep tw short possible. wires
Turn choke f o r t h e frequency a9just switch coverage desired with clarifier. utilized because bottom clarifier will come original center frequency, back o t h e r words, switch could labeled varible normal because IK position, c l a r i f i e r works normal down.
35
MIDLAND 1 3 - 8 9 8 15KC SLIDER
Remove
clarifier
wire
Remove
wire
NOTE:
from from
unit
RF
series
fourth
a
20
terminal
UH
RF
note below.
shown.
choke
locate
cabinet
made
using
choke
c o n n e c t i n g tw Miller
36
wire board. series
10 UH RF
#4205 a d j u s t a b l ~
with
chokes coil.
PACE
1000
SLIDER
Remove u n i t from bottom s i d e on jumper shown.
cabinet board
metal strip solder the small wire
locate
large adjustable fixed c o i l board n e x t unit coil R225. PF c a D a c i t o r a c r o s s small fixed c o i l , p o i n t on bottom shown. adjusttw coil a b l e do capacitor.
Notice
unit
A d j u s t R226
t h e i r f u l l y clockwise p o s i t i o n .
R227
nd remove R225 (5
shown.
fixed or he u n i t W i l l now s l i d e lSKC coil ustable the range can be adjusted appropiately. desired
p i n k w i r e from
removed channel s e l e c t o r .
make
37
channel selector 22A
position active
\\9/J 5oL.ilEl< WIRE ACROSS 'i£I!!.E
Hc
i{){)1
SI.IOEIiJ
CD
<9
38
II I
PACE DXI023B 20DC SLIDER
Remove
unit
from
cabinet.
g r a y w i r e coming f r o m Unsolder t o t h e B o a r d a n d a d d a lOUR RF c h o k e points
Solder switch
short also
jumper a c r o s s shown.
ANL
switch
them
w i r e s from
yellow wires across the
Solder NOTE:
series with
y e l l o w w i r e s from b o a r d a s shown,
Unsolder tw
channel s e l e c t o r
lOUH RF
ANL
choke.
operational continuously after this used normal modification switch w i l l slider. varible switch ANL
will
00 :rUMP
39
SIMPSON CHEETAHI'
PEARCE
lSKC SLIDER
Remove
u n i t from
Remove
wire
wire
Th
place
capacitor
choke series.
note below.
Simba UH
used
shown.
UH
Cheetah connected
adjusted.
Bengal
SIMBA
choke i n s e r i e s w i t h
made from f i x e d v a l u e RF
RF
NOTE:
RF
AL,
locate the white
cabinet
clarifier.
wire
BEN
chokes connected
made from choke series. M i l l e ~ j4204 RF
v a r i b l e M i l l e r #4204 UH r a n g e . j u s t a b l e coil with a
40
used
REALISTIC TRC-47 12KC SLIDER FO SSB
Remove terminal
Unsolder solder
NOTE:
u n i t from
cabinet c l a r i f i e r control
locate shown.
left
t h i s w i r e l o o s e from series with choke
RF
choke limited this type RF
AM
right
miniature type as space unit. desired
same p r o c e d u r e c a n b e f o l l o w e d side, side of the clarifier control.
U ~ 5 C > L b E . ~ l.E.A.b a H o ~ e :
' ~ S e J ~ . \ e . s
41
slide
REALISTIC TRC-48 25KC SLIDER FO SSB
Remove hand p a t h
blade
u n i t from
cabinet clarifier control control with
p a t h from t h e solder
Scrape
RF
UH
choke
insulation indention
s i n g l e edge r a z o r the control terminal.
away p a t h solder the other
opposite side o f t h e RF c h o k e .
NOTE:
right
locate shown.
turned slider, channel s e l e c t o r must c h a n n e l to the using. one you above clarifier w i l l t u n e down a p p r o x i m a t e l y 25KC lower sideband only.
To
slide
desired
procedure followed clarifier control.
cu.,
?Al1-l "
E
~
AM
left
side the side
USB
SCRAPE 01=F
\...
42
--
same
TEABERRY
52
CHANNEL
CAPABILITY
CENTERo
LOW-
CHANNEL
Normal '2
(15A) 2 7 . 1 4 5
(19A)
27.195
(22A) (22B) (23A) (23B)
27.235 27.245 27.265 27.275
.-
20 21 22 23
HTGH+ MHz Z .Z95 PIRz f'IRz 2"7. 30 2 1 . 3 2 5 f'IRz PIRz Z 3I+S f'IRz 35"5 PIHz 2 7 . 3 7 5 PIHz 2 7 . 3 S S MH 2 7 . 3 9 5 MH ~ 2 7 . 4 0 5 MHz 27.I+25 HHz 2'7.435 PIHz 2 7 . 4 4 5 MHz 27.IJ55 MRz 2 7 . 4 7 5 PIRz 27.I+85 PIRz 28
2 7 . q 9 5 PIFIz 2 7 . 5 0 5 l"IRz 2 7 . 5 2 5 PIFIz 2 7 . 5 3 5 PIFIz 27.SQ5 PIRz
Normal
note
first
page.
43
27.575
PIFIz
SEARS AND PINTO 13KC SLIDER
bottom cover Sub-board.
Remove
crystals
SSB
locate
c i r c u i t paths each crystals jumper wire a c r o s s solder t o p a s shown, crystals. brown w i r e r i g h t s i d e o f t h e main t h e c u t away p a t h resolper c r y s t a l t ~ t h e ~ i g h t s i d e . This p a t h goes w i l l have trimmer capacitor side adjusted l a t e r .
Unsolder board
white wire move t e r m i n a l j u s t below. Solder 10
Unsolder board NOTE:
unused UB c h o k e from t h i s p o i n t sub added jumper wire
other shown.
down
u n i t w i l l no transmit s l i d e down 15KC receive will track with transmit. m e n t i o n e d e a r l i e r , w i l l no trimmer capacitor have adjusted that the receive will track exactly with the transmit frequency. b e s t wa this talk another station lower sideband, not trimmer adjust disturbing the clarifier, closest clarity.
c::-:J
C
It:!- : r \ 1 . M . P ~
0
44
SILTROMIX SSB 12KC SLIDER
Remove u n i t f r o m c a b i n e t
Remove
47PF c a p a c i t o r
Remove
green wire
board where With
locate
relay. relay
resolder
removed.
capacitor
s i n g l e edge r a z o r blade, c r y s t a l bank shown.
cut the
ground p a t h
piece of bare Solder wire to the loop around every o t h e r p o i n t f i r s t making with commections
Ll12 slightly
NOTE:
bottom.
relay
s i d e o f t h e ~ o a r d ma proper range. give
he u n i t w i l l s t o p o s c i l l a t i n g
properly.
45
have
Ll12
away p a t h shown. S t a r t -
all.
adjusted
adjusted
SILTRONIX 1011C AND 1011D 2 7 . 5 MHz 2 8 . 0 MHz
Remove c a b i n e t from u n i t VFO
Unsolder coil
Solder shown.
coil scrape i n s u l a t i o n from shown. center
wire short piece coil center of
Resolder place
28.5
Replace
c o i l back i n t o
connect MHz
calibrate adjusting itors labeled
NOTE:
cover
screws box.
remove
Be s u r e counter
position
was.
instead
cover ranges trimmer capac-
VFO
27.0
of the
VFO
28.5.
frequency
recalibrate trimmer c a p a c i t o r s bands. unit will lower now o p e r a t e upper halves of the
eleven meter band.
46
wire
SIDEBANDER KC SLIDER
SB
Remove
u n i t from
Remove
green wire making n o t e
locate unit
cabinet bottom side of
green wire
te"rminal
removed from.
Obtain small choke across
Solder switch
slide
SPST
switch
pieces of wire points
Mount drilling
switch small hole
the short shown.
solder a
long from which
10UH RF
each s i d e of the g r e e n w i r e came.
bottom
the front panel inserting screw.
unit to allow cover switch slot come t h r o u g h . Making s u r e t o c u t t h e r i g h t e d g e the cabinet.
NOTE:
switch
operation
used
normal
necessary
47
v a r i b l e frequency come b a c k t o c e n t e r .
SBE
CONSOLE l5KC SLIDER
Remove
wire
bottom c o v e r locate unit l e f t side of the channel s e l e c t o r .
small hole approximately Drill
from
l e f t edge o f t h e c h a s s i s front.
s m a l l SPST s l i d e s w i t c h Obtain choke a c r o s s t h e t e r m i n a l s shown. yellow wire s w i t c h a s a l s o shown. Mount
switch
Place
bottom c o v e r o of the switch drill t h r o u g h a s come shown. NOTE:
he s w i t c h
used frequency coverage.
yellow
solder a
ends a c r o s s
solder
small hole with v e ~
hole
give
48
lOUH RF
unit
allow
screw. locate the
u n i t normal
switch
center
varible
51
SBE fORMULA .D CHANNEL CONVERSION
Remove c o v e r f r o m
unit locate three points green conriected shown. black wire channel s e l e c t o r running board. third point board. located j u s t l e f t of the green wire
Mount a SPDT m i n i s w i t c h rear hole
Wire
with NOTE:
side of the unit
removing
PA
drill-
speaker jack.
switch center pole
shown, making s u r e t h a t wire switch goes connection b l a c k w i r e from channel s e l e c t o r .
switch must have u n i t operate normal.
p o s i t i o n t o make frequency c h a r t . n e x t page unit, switch desired wire local distance switch move wires board. them side connections center switch This w i l l eliminate the side 46 channels w i l l still ootained. center
49
SB
TOUCH
FORMULA
CHANNEL
CONVERSION
Remove u n i t from c a b i n e t c i r c u i t s shown. Remove
hole
PA
NOTE:
locate pins
s p e a k e r j a c k from r e a r pins
shown.
More i n f o r m a t i o n b o o k u n d e r F o r m u l a D, frequencies
PLL
o b t a i n e d from
~ 1 ~ 4 - } 5 , + b o\'="'
--:tc-5
50
drill switch.
switch,
b e t t e r view
the basic
integrated
unit mount
side of the chassis
Solder t h r e e wires
unit
COM
shown
board
chart.
wire
this same.
SBE FORMULA AND TOUCH CO 51 CHANNEL CAPABILITY
CHANNEL
26.965 26.975 26.985 27.005 27.015 27.025 {j B'S rrs
'0
13
14
15
17 IS 19
21 22
23(25)
POSITION 2
CENTER OFF 27.125 MHz 27.135 HFIz 27.11+5 P!FIz 27.165 HFIz 27.175 P!FIz 27.185 f!FIz
MHz MHz MHz MHz MHz MHz
7
flHz .2T5 PI Hz 25 l'v'IHz 2] 27 . 235 rIFIz(23' 27.24S PIHz(2'+) 27.265 f'IHz(26)
HR P!Hz
'27. 0'75 HFIz 7 0'85 HFIz 2'7.105 HHz 2'7.IIS PIHz 2'7.125 P!Hz 2 7 . I 3 5 P!Hz 7.155 HFIz 2'7.165 P!Hz HHz '2 FIHz 7.T8 27 . 205 PIHz 27.2IS FIHz 27.225 HHz 27.255 HHz
27.285 27.295 27.305 27.325 27.335
MHz(28 ) rIRz(29 rIRz(30)
FIRz(32) rvIRz(33) 27.3'+5 f'IRz(3It) 2 PIH-z{3S M I l ~ ( '2
L 7 . 3 ~
e
M M Z C ~ ~ )
27.£1:05 f'IRz(ItO) 27.£1:25 fJIFIz 27.It3S PIFIz 27.ItIt5 PrHz 27.ItS5 JtllFIz 27.rt7S 10IFIz 27.It85 f'IFIz 27.It95 rIFIz 27.S05 MFIz 27.525 Jl'IFIz 27.53S It'IFIz
27.SIt5
27.575
51
7)
It'IFIz It'IFIz
TRAM
DIAMOND
60
1SKC SLIDER
Remove u n i t from p o i n t s shown.
cabinet
Solder the points together with a 1 s o shown. Adjust
Resistor bottom range d e s i r e d SOOr
until
range
desired, pots,
L301,
locate
small piece of wire counter clockwise d i r e c t i o n
reached.
desired will drop located just l e f t of the rease usted clockwise
52
three
three down r a n g e .
TRAM
DIAMOND
COBRA
BROWNING
46
LTD
unsolder front
Obtain DPDT m i n i a t u r e s w i t c h shown. w i r e them Wire
pieces of
switch
removed c r y s t a l .
NOTE:
12.800 of the
13.100
i n s u l a t e d w i r e from back to the
MHz
MHz
unit.
crystal
crystal
center holes of the
switch
units unit
mounted on side of the mobile base c h a n n e l s e l e c t o r . On j u s t behind switch must mounted away from
board because of the
CRYSTAL
l35B
CHANNEL ADAPTOR
Remove c a b i n e t from u n i t from synthesizer board
posts
l32B
ORDERING
~ e n g t h
wire.
INFORMATION
special crystal specify u r e r . Be s u r e f r e q u e n c y ( 1 3 . 1 0 0 MHz), this h o l d e r t y p e which
ordered from any c r y s t a l manufactunit type for, frequency tolerance .005% case HC 1 8 / U .
53
46
CHANNEL
ADAPTOR
switched with long c r y s t a l s cannot wire because of the capacitance wire. In will c r y s t a l w i l l e i t h e r stop o s c i l l a t i n g frequency. This a d a p t o r w i l l switch c r y s t a l s with relay operated with length switch wire desired.
As m o s t distances many c a s e s
know,
Many c r y s t a l s y n t h e s i z e r what These ix w i t h o t h e r c r y s t a l s
crystals. known radio difprovide ference transmit receive frequencies. of these c r y s t a l s were removed, u n i t would tw transmit b o t h w e r e removed channel, would r e c e i v e . unit transmit or receive. c r y s t a l s were would tw c r y s t a l s 30 than placed w i t h tw KH frequency, u n i t would t r a n s m i t r e c e i v e 30 KHz h i g h e r the basic idea behind that n o r m a l 23 c h a n n e l s . T h i s of the adaptors w i l l have t h i s a d a p t o r . Of c o u r s e , tw switch crystals, used whole t h i n g l e s s t h a n f i f t e e n bucks i n c l u d i n g special built crystals. adaptor made from Radio Shack mini piece small hole 'vector board. relay ORDERING
Most
AM
SPECIAL CRYSTALS crystals,
units
m o s t common
11.275
1 1 . 7 3 0 MHz. T h e r e f o r e , special order crystal 1 0 . 9 7 5 MHz "and 1 1 . 4 3 0 MHz r e s p e c t fr.equencies w i l l have i v e l y . These o r d e r e d from any c r y s t a l m a n u f a c t u r e r , specify the type unit for, frequency sure tolerance HC25/U h o l d e r which type .005%, most c a s e s .
MH
--
.............
... . . . . . . - 7 ~
54
CHANNEL ADAPTOR
There many ways o f i n c r e a s i n g t h e c h a n n e l c a p a b i l i t y shown h e r e 23 c h a n n e l r a d i o s . method be added almost space enough. Most CB r a d i o p r o v i d i n g t h e r e radios m a s t e r c r y s t a l s which c o n t r o l t r a n s m i t receive for four channels each. o t h e r words, were removed, channels one, two, t h r e e , f o u r would drop higher frequency, channels out. were changed t h r o u g h f o u r w o u l d become some o t h e r c h a n n e l s . By u s i n g t h i s idea w i r e s from e a c h o f t h e f i r s t f o u r removing master crystals original w i r i n g them switch, c r y s t a l s could could switched used ne the other just s w i t c h . T h i s w o u l d mean t h a t flipping through s i x t e e n would side switch, channels this four pole needed come new c h a n n e l s . that double throw switch crystals. this f o u r ne wiring shown drawing above.
CRYSTAL ORDERING Du
INFORMATION
numerous f r e q u e n c i e s
give possible w i l l show ho fore, information here
Used
different units, therefrequencies l i s t e d , set. t o f i g u r e y o u r ow 40 c h a n n e l s ne 1977.
master crystals F i r s t find frequencies for the your r a d i o from s c h e m a t i c . By a d d i n g numbers below crystals, frequency to the frequency ne units. same derived. added numbers used
EXAMPLE:
H y - G a i n 67
Xl X2 X3 X4 X5 X6
23.290 23.340 23.390 23.440 23.490 23.540
Ad
this .270 .250 .250 .250
55
Ne
Frequency 2 3 . 5 6 0 MHz 2 3 . 5 9 0 MHz 2 3 . 6 4 0 MHz 2 3 . 6 9 0 MHz
TRAM
TRANSMIT
ON
THE
D-201
VARIBLE DIAL AND
WATT
unit bottom c o v e r from w a t t power r e s i s t o r s l o c a t e d n e a r
Remove
Mount m i n i SPST s w i t c h power r e s i s t o r s shown.
Solder connect
of the
p i e c e s o f hookup w i r e each tw ends
holes between switch
locate cover of the u n i t coming t h r o u g h chassis hole switch.
Locate tw switch. switch through NOTE:
shown.
orange wire
crystal-varible
connection point with ground
w i ~ e
also
unit.
power r e s i s t o r s
Raise
Solder the other switch behind
INREASE
locate rear
across
Solder a wire piece orange wire shown.
POWER
shown.
white wires
remove
hole
right
just side
running around
chassis.
channel when u s i n g varible dial. capable power switch 20 w a t t s output with re-adjustment of the plate load controls r e a r o f t h e u n i t . When u s i n g SSB, clarifier u n i t moves o n l y t h e t r a n s m i t when u s i n g control c h a n n e l s e l e c t o r must be
varible dial.
adjustment of the increased bottom o f t h e u n i t . This limiter control shown manual and w i l l g r e a t l y improve performance. modulation
56
TEABERRY STALKER ONE 37 CHANNEL CAPABILITY
u n i t from locate
Remove cabinet selector
PLL left side
channel s e l e c t o r .
~ e h i n d
c o v e r from Remove pulling tape
prying Mount
edges.
m i n i SPST s w i t c h
l e f t side
holes unit.
Solder wires across solder switch the other blue wire channel orange wire selector,
Replace
retape
shown.
cover
place.
small s l o t ~ - - - - - - - - + - - - - - - - - - - + - - - - - - - - - - - - - - ~
allow cover of the u n i t s l i d e cover over switch.
NOTE: U s i n g no
unit switch, o p e r a t e from c h a n n e l channels. 23 10 ne frequency c h a r t below. T h i s m o d i f i c a t i o n ma work models e s p e c i a l l y o l d e r s e t s because ne changes PLL u n i t s .
CHANNEL 12
14 15 16
FREQUENCY 27.275 27.285 27.305 27.315 27.325 27.335 27.355
CHANNEL 18
20 21
22 23
57
FREQUENCY 27.365 27.375 27.385 27.405 27.415 27.425 27.455
ELECTRONICS
TEABERRY
52
CHANNEL
RACER
CONVERSION
Remove u n i t from c a s e f o u r wires from t u n e s witch to the four Delta connections f r o n t edge PC b o a r d , shown. Do
switch. Solder
across
S7\
I
\
~
e b c;,.
e
0
f
&
~
r
remove them from
small piece tw
points
wire
shown.
gray green Solder w i r e s from Delta switch c o n n e c t them I S R : C \ l o . i ~ together shown. u ~ i G 2 b - e ~ wire c.
Solder switch
brown w i r e from shown.
remaining orange Solder IC802 making wire very sure t h a t short integrated
other
circuit. o r a n g e w i r e ma h a v e extended some u n i t s . T h i s will affect operation.
NOTE: To
erly,
channels propchart
n e x t p a g e . U n i t may c e i v e above channel lIon some u n i t s b e c a u s e treme frequency coverage.
~
~
l
i > A . ~ € ' -
- E , e T T o ~ C . ( ; l ) ~ '
}&11 58
PRESIDENT WASHINGTON/GRANT SLIDER CHANNEL EXPANSION SLIDER Remove
u n i t from metal p a t i t t i o n around
2.
diode D-30,
Cut
cabinet locate PLL c i r c u i t .
located
j u s t behind
r e s i s t o r R-119, end, shown
wire
striped
other
t h r e e i n c h jumper c l a r i f i e r c o n t r o l , where Solder the other u n i t w i l l no
EXPANSION Turn unit over
CHANNEL
left
noise
D ~ 4 4 .
terminal attached. purple wire
metal partition.
jumper 2KHz
slide
solder
R-119
side
Solder
down 4KHz.
remove
blanker switch.
plug j u s t
Solder 70 oh ground.
resistor
other
jumper wire between t h i s noise blanker switch.
same
S o l d e r a n o t h e r jumper wire between
21 o f t h e noise blanker switch.
circuit
u n i t w i l l no
channel
----
R.-U'1
b-3Z.
-1
'R-UGf
intergrated
2 7 . 4 5 5 MHz, b e g i n n i n g transcieve 2 7 . 8 0 5 MHz. c o n t i n u i n g upward
I ~ T
~ T A L ~
-en-
ground
i n t e r g r a t e d c i r c u i t awav from figure.
shown
Solder
l e a v i n g room t o figure.
inch wire to the
Solder
patittion.
\UJ~ . . 9 U T
59
-_.
PRESIDENT -
JOHN Q./HONEST ABE/ZACHARY TEDDY R. 70 PLUS CHANNEL CONVERSION
u n i t from cabinet clear ribbon cable channel s e l e c t o r . This from circuit cable connects b o a r d a s shown figure. Remove locate
Mount a
SPST s w i t c h
unit solder
convenient spot wires switch o t h e r ends parts shown
figure.
ne channels, flip To switch on and channel s e l e c t o r channel channel This will 70's. continue upwards 40 MODULATION INCREASE fully T u r n VR-5 e x c e pt units RT-4 labled
counter-clockwise position, JOHN which case
shown figure, *NOTE: When s o l d e r i n g ' t h e PLL u n i t wiring make s u r e t h a t correct shorting o t h e r p i n s BEFORE APPLYING POWER, a s v e r y s e r i o u s damage PLL u n i t . result
60
SLIDER Remove
COURIER
j u s t behind
CENTURION/SPARTAN/GLADIATOR
u n i t from PLL
l o c a t e D-39, out.
cabinet
circuit
gray wire other b o a r d a s shown l o o s e from
Follow
Solder
terminal wire attached
Solder
MODULATION
L o c a t e C-96
out,
f u l l modulation
27.145
MHz
Remove
them
slide
With
~ t L o W
down 5 KHz.
KHz
l e f t corner of c i r c u i t board allowing removing limiter b o t h AM SSB.
thus
w i r e s from
tone
way.
switch
wires approximately S o l d e r tw long first connect o t h e r ends PLL c i r c u i t b o a r d a s shown.
3.
sePt
black wire small jumper wire between orange wire located right side.
c l a r i f i e r w i l l no
1.
figure.
gray wire u n i t , which a l s o
PLL
PLL
switch pulled out, channel b e c o m e s 2 7 . 1 6 5 MHz. channel
~ - " 5
-\ \\ J-
t:>LL t l ~ \ l
61
tape
switch
terminals
becomes
27.145
MHz
COURIER SPARTAN/GLADIATOR/CENTURION PLL
CHANNEL EXPANSION
top cover of the u n i t
Remove
circuit
cover plate.
Carefully count
Obtain them Mount a up up
p i n s towards shown
23
lN60 d i o d e shown
4700 oh resistor side SPST
switch correspond
switch To s e l e c t o r must channel u n i t s , NOTE:
front of the unit figure.
switch
channel,
unit
solder
convenient place diagram.
wire
channel models, On channels through functional channel 23
a
40
channel,
needed. switch must have
.........
unit center
channel 40
wire position.
.....-.....
"f" -- ~
' l / 1 . 5 5 M\\Z
~ M . - : ~ & e M ~ 62
V"F,:. . l ' 1 I " " ~ tt\l\c ~ l l P
GENERAL
INFORMATION
63
ILLEGAL ON CLASS SWITCH KI FOR VARIOUS COBRAS, OF MIDLANDS ESPECIALLY SIDEBAND MODELS. AVAILABLE AT: $54.95
64
SWITCH KITYOR TEABERRY STALKER TWO. ILLEGAL ON CLASS D CITIZENS BAND.
65
OIL-FILLED LOAD FROM AN AUDIO
KING ANTENNA,AKO-lOO,
66
$39.95
HAM
67
PLL CIRCUIT, USE ONLY, $29.95
68
EAGLE 500
EAGLE 20
(1) Heavy-duty Plate Transformer (2) RF Shield (3) Parasitic Choke (4) Exhaust Fan (5) Ai Flow
(1) Heavy-duty Plate Transformer (2) RF Shield (3) Parasitic Choke (4) Exhaust Fa
Operating Modes:
Operating Modes:
SSB,
SSB,
Special shielded input matching transformer
Special shielded input matching transformer
Shielded
Shield between Driver an
cavity for clean output
Output stages
Raised front for easy switching
Raised front for easy switching
Superior wind tunnel cooling system
Fan-cooled for longer life
Pre-amp gain nominal 18 db., which is operational in both standby an operate modes
Pre-amp gain nominal db., which is operational in both standby an operate modes
activated relay switching
activated relay switching
Seven tube (20LF6) compliment
Three tube (20LF6) compliment
Bridge power supply for heavier current
Bridge power supply for heavier current
Frequency range:
Frequency range:
Meters
Power requirements: 11
VAC at 10 Amps
Power requirements: 11
500+ Watts (GW) carrier power
200
Drive nominal
Drive nominal
to
Watts
Meters
VA
at
Amps
Watts (CW) carrier power
to
Watts
9O-Day Limited Warranty
9O-Day Limited Warranty
P. C. board constructio n for dep endability an serviceability
P. C. board constructio n for depend ability an serviceability
Meter: Relative watts meter for ease in
Meter: Relative watts meter for ease in
tuning
tuning
25 WATT LINEAR,COMPACT SIZE. ACTUAL SIZE: 2 7/8" 3/4" /8 COST- $59.95
70
40
PLL ADAPTER SWITCH (NOT FOR TRANSMIT USE) AVAILABIE AT MOST CB, HAM RETAIL OUTIETS (FITS HYGAIN ETC.) CH
71
