COBRA RADIOS
Model |
Modulation |
AM Power |
SSB Power |
7 PLUS |
VR4 or Cut D8 |
L11 L12 L13 |
|
10 PLUS |
VR4 or Cut D8 |
L11 L12 L13 |
|
18 LTD |
Cut D13 or Cut R84 |
L7 L6 L5 |
|
18 PLUS |
Cut D12 |
L7 |
|
18 RV |
RV501 or Cut D502 |
L304 L305 L306 |
|
19 |
Cut D11 |
L5 L8 L9 |
|
19 GTL |
VR6 or Cut D9 |
L15 L16 L17 |
|
19 LTD |
VR6 or Cut D9 |
L15 L16 L17 |
|
19 LTD CLASSIC |
VR4 or Cut D7 |
L7 L8 |
|
19 M |
Remove C73 |
L8 L5 L3 |
|
19 PLUS |
RV501 or Cut C511 |
L305 L306 |
|
19 PLUS (new) |
VR4 or Cut D8 |
L11 L12 L13 |
|
19XS |
Cut D105 |
|
|
20 (B&K) |
Cut CD20 & CD21 |
T11 T10 C60 |
|
20 LTD |
Cut D13 |
|
|
20 PLUS |
RV501 or Cut C511 |
L305 L306 |
|
20 PLUS (new) |
VR4 or Cut D8 |
L11 L12 L13 |
|
21 |
Remove C105 & C106 |
L12 L9 |
|
21A (old) |
Cut D24 |
L9 L8 |
|
21 GTL |
VR5 or Cut D9 |
L13 L10 L9 L8 |
|
21 LTD |
VR5 or Cut D9 |
L13 L10 L9 L8 |
|
21 LTD CLASSIC |
VR4 or Cut D7 |
L7 L8 |
|
21 PLUS |
Cut 1.5k resister next to TR34 |
L12 L10 |
|
21X |
VR207 or Cut D212 |
L212 L214 |
|
21 XLR |
RT4 or Cut D13 |
L15 L12 L11 |
|
23 PLUS |
RV501 or Cut D502 |
L304 L306 L307 |
|
25 GTL |
VR5 or Cut D9 |
L13 L10 L9 L8 |
|
25 LTD |
VR5 or Cut D9 |
L13 L10 L9 L8 |
|
25 LTD CLASSIC |
VR5 or Cut D9 |
L10 L9 L8 |
|
25 PLUS |
Cut 1.5k resister next T34 |
L12 L10 |
|
26 |
Cut D24 |
L7 L8 |
|
28A |
Cut CD28 & CD29 |
T12 L2 L5 |
|
29A (old) |
Cut D24 |
L7 L8 |
|
29 XLR |
VR5 or Cut D14 |
L15 L12 L11 |
|
29 GTL |
VR4 or Cut D11 |
L14 L13 L12 |
|
29 LTD |
VR4 or Cut D11 |
L14 L13 L12 |
|
29 LTD CLASSIC |
VR4 or Cut D11 |
L14 L13 L12 |
|
29 LTD GOLD |
VR4 or Cut D11 |
L14 L13 L12 |
|
29 PLUS |
Cut D20 |
L12 |
|
31 PLUS |
Cut D19 |
L13 L12 L11 |
|
32 XLR |
Cut CD11 & CD12 |
L5 L3 |
|
33 PLUS |
VR4 Or Cut D17 |
L11 L9 |
|
33 LTD (sos) |
RV1 |
|
|
40 PLUS |
RV104 or Cut D203 |
L305 L306 |
|
40X |
RV201 or Cut D203 or C215 |
L304 L305 L306 |
|
41 PLUS |
RV4 or Cut D21 |
L19 L20 L21 |
|
45 XLR |
VR105 or Cut D119 |
L113 L109 |
|
46 XLR |
VR105 or Cut D119 |
L113 L109 |
|
47 XLR |
VR105 or Cut D119 |
L113 L109 |
|
50 XLR |
VR5 or Cut D119 |
L109 |
|
55 XLR |
VR5 or Cut D119 |
L109 |
|
62 XLR |
VR3 or Remove C67 |
L16 L15 L12 |
|
66 GTL |
VR2 or Cut D4 |
L14 L15 L17 |
|
66 LTD |
Cut R54 |
|
|
67 LTD |
RV4 or Cut D212 |
L306 L307 L308 |
|
77X |
VR207 or Cut D212 |
L211 L212 L214 |
|
78X |
VR6 or Cut D9 |
L11 L12 L15 |
|
85 |
Remove Q17 from Circuit |
L3 T4 |
|
86 XLR |
L3 T4 |
L3 |
|
CAM 89 |
Add a 1k resister in series with C110 |
L13 L12 L9 |
|
87 GTL |
VR6 or Cut D16 |
L17 L16 L13 |
|
89 GTL |
VR6 or Cut D16 |
L17 L16 L13 |
|
89 XLR |
VR5 or Cut D14 |
L15 L12 L11 |
|
90 LTD |
RV201 or Cut D203 |
|
|
132 (old) |
Cut Q25 from circuit |
T14 T15 L3 C116 |
R136 |
132A |
Cut CD39 & CD 40 |
R79 |
R87 |
132 XLR |
R134 or Cut R125 |
L3 |
R130 |
134 |
Cut D40 & D41 |
L8 L10 |
VR15 |
135 (old) |
Cut Cut Q25 from circuit |
T14 T15 L3 C116 |
R136 |
135 XLR |
R134 or Cut R125 |
L3 |
R130 |
138A (old) |
Cut D40 & D41 |
L8 L10 |
VR15 |
138 XLR |
VR7 & VR6 |
VR8 |
CT7 |
139 |
VR12 or Cut D63 |
L12 L10 |
VR15 |
139 XLR |
VR7 & VR6 |
VR8 |
CT7 |
140 GTL |
Cut R104 |
VR6 |
VR7 |
142 GTL |
Cut R104 |
VR6 |
VR7 |
146 GTL |
VR5 or Remove TR29 |
VR10 |
VR6 |
148 GTL |
Cut R131 |
VR10 |
VR11 |
148 GTL-DX (early) |
VR5 |
VR11 |
VR7 |
148 GTL-DX (late) |
VR14 or Remove TR32 |
VR13 |
VR12 |
148 GTL-B |
RV14 |
RV15 |
RV13 |
148 GTL-DX |
RV12 |
RV11 |
RV6 RV3 |
1000 GTL |
VR6 or Cut D16 |
L17 L16 L13 |
|
2000 GTL |
Cut R131 |
VR10 |
VR11 |
GTL 150 |
RV14 |
RV13 |
RV12 RV4 |
Cobra 148-DX (early)
Adjustments:
AM/FM S METER VR1
SSB/CW S METER VR2
SSB SQUELCH VR3
AM SQUELCH VR4
FM DEVIATION VR5
TX FREQ VR6
CARRIER BALLANCE VR7
RF METER VR8
DRIVER BIAS VR11
FINAL BIAS VR12
ALC VR12
AM POWER VR13
AMC VR14
Cobra 25 GTL/LTD/CLASSIC
SAMS PHOTOS: 207
AM LIMITER: D-9
POWER TWEAKS:
1. Change R76 (3.3k) to a 1k (located near mike socket)
2. Change R43 (10 Ohm) to a 2.7 Ohm.
3. Change R108 (1 Ohm) to a .47 Ohm.
4. Replace stock final with a 2SC1969 transistor.
5. Re-tune coils L10,L9,L8 for maximum forward power.
MODULATOR
PARTS NEEDED: 1- 220uF (16 to 25 volt) electrolytic capacitor.
1- 100 to 200 Ohm resistor. (1/4 to 1/2 watt)
ASSEMBLY:
1. Make sure your radio is peaked out.
2. Unsolder JP6 near final.
3. In JP6 holes, solder the 220uF capacitor. (negative side of cap. faces final)
4. On the solder side of the board, solder the resistor across the 220uF capacitor.
You can use different resistor values to get the desired dead-key.
VARIABLE POWER:
1. Find the two wires that are attached to the RF gain control, follow them to the PC board and UNSOLDER them.
2. Solder in a jumper wire from where you removed the wires on the board. This will restore receive.
3. Place the two wires from the RF gain control in your mod kit by soldering one wire to each of the 220uF capacitors leads.
REPAIR TIPS:
25 GTL:
1. Channel display reads all 7's or 8's: Leaky/shorted C104(470uF 10v). Replace with a 16v or 25v.
2. NO TX: Check for shorted 33uF(10v) capacitor across C87.
3. OVERMOD: Check D19,TR14,VR5
25 LTD
1. OVERMOD: Check D9
2. LED goes out and NO TX when keyed up: Check C118
25 LTD Classic:
1. Burned R89(15 Ohm 1/2 watt): Replace with a 1 watt.
2. OVERMOD: Check for missing or cut D9, missaligned VR5.
Cobra 29 GTL/LTD/CLASSIC
POWER TWEAK #1:
1. Change R58(10 Ohm) to a 2.7 Ohm.
2. Change R123(1 ohm) to a .47 Ohm.
3. Re-tune L14,L13,L12 for maximum forward power.
POWER TWEAK #2
1. Remove final and replace with a 2SC1969 transistor.
2. Remove R123 and replace with a jumper.
3. Replace C58 with a 180pF capacitor.
4. Re-tune coils.
CAUTION!!! I do not know if both of these power mods can be done at the same time!!!
SAMS PHOTOS: 217
AM LIMITER: D-11
MODULATOR AND VARIABLE POWER
ASSEMBLY:
The instructions are the same as the Cobra 25 above,EXCEPT the following:
1. Unsolder JP36 instead of JP6.
REPAIR TIPS:
29 GTL:
1. "Motorboating": Locate C242(.001)on pin 5 of TA7222 audio ic and move to pin 4 of ic.
2. Weak mic gain: Some raios have a 2SC372 mic amp. Replace with a 2SC945.
3. Receive on adjacent channel: Bad solder joint to C131 (next to 10.240 crystal).
29 LTD:
1. OVERMOD: Check D11
2. PLL dead, no TX or RX: Shorted C112
3. No TX/RX with Channel LED lit on RX and then goes out when keyed: Bad /shorted C119.
29 LTD Classic:
1. OVERMOD: Check D11. Missaligned VR4.
2. Internittent audio/modulation: Bad solder joints on pins 1&2 or 2&3 of audio ic.
3. TUNE UP TIPS: L11 is the TVI trap. DO NOT adjust!!! Stretching L12 gets moe output. L14 peak is about a turn or two up from factory original setting.
Cobra 148 GTL
POWER TWEAKS:
1. Remove TR24
2. Change R126 (10k) to a 2.2k
3. Change R124 (10k) to a 4.7k
4. Re-tune L37 and L38 for maximum AM forward power.
SAMS PHOTOS: 249
MODULATION: Cut R131
AM POWER: VR10
SSB POWER: VR11
CHANNEL TWEAKS:
I have found that the easiest way to do this without hacking your radio with a lot of switches is to install the EXPO 100 kit "L" expander kit.
This is an excellent kit and installs quickly with very little tools. This way you don't have to fumble around trying to remember which switch goes where, etc...
CLARIFIER:
1. Cut one side of R44 and D52. Remove R174 and solder a jumper wire in its place.
2. Follow the RED WIRE from the clarifier control to where it connects to the PC board and cut it loose.
3. Solder this RED WIRE to the circuit board ground.
NOTE: Some radios have a YELLOW WIRE instead of the RED WIRE.
4. Follow the ORANGE WIRE from the clarifier control to where it connects to the PC board and UNSOLDER it.
5. Resolder this ORANGE WIRE to pin 3 of the MB3756 regulator.
With any luck, you should slide about 5Kz down and 1Kz up.
COBRA 140,142 GTL , PRESIDENT P-400, UNIDEN WASHINGTON-(8719 PLL)
MODULATION: Remove R104 or TR32
AM POWER: VR6
SSB POWER: VR7
"RX" METER: VR1
"TX" METER: VR10
SQUELCH: VR2
TX FREQ.: VR3
CARRIER BAL: VR5
DRIVER BIAS: VR8
FINAL BIAS: VR9
MOD. METER: VR12
POWER TWEAK
1. Remove TR32
2. Replace R99 (10k) with a 2.2k
3. Replace R94 (10k( with a 2.2k
4. Re-tune coils L36,L37 for maximum forward AM power.
CLARIFIER:
1. Remove R187
2. Remove D36
3. Jumper D35
4. Follow the RED WIRE from the clarifier control to the PC board and UNSOLDER it.
5. RESOLDER this RED WIRE to pin 3 of regulator IC MB3756.
6. Follow the ORANGE WIRE from the clarifier control to the PC board and UNSOLDER it.
7. RESOLDER this ORANGE WIRE to the PC board ground.
NOTE: The Orange and Red wires may need to be reversed in some radios for this to work right.
8. Re-align center slot by adjusting CT3.
If all went well and you didn't smoke your radio, you should slide about 1 Kc up and 4 Kc down.
NEED MORE SLIDE??: Install a 5.6uH choke on the banded end (grounded end) of the varactor diode D37 or replace D37 with a super diode.
CHANNEL TWEAKS:
EASY TWEAK: Install EXPO 100 kit "B".
FOR THE DRILL HOLES ALL OVER MY RADIO LOVERS...:
1. Replace 11.1125 crystal with a 11.3258 crystal.
2. Isolate the ground pin 10 of the MB8719 PLL by cutting the PC trace.
3. At this point, turn your radio on and check to varify that all channels are locked in and working. If it is not, adjust these in the following order:
a. CT3 for USB.
b. L20 for LSB.
c. L19 for AM.
4. Install a SPST switch between pins 11 and 12 of the MB8719 PLL
5. Install a SPST switch across the cut you made to isolate pin 10.
6. Check all connections for shorts.
7. Check to make sure everything is working before you drill holes for the switches!
ROAD MAP:
SW1 / SW2 DOWN: NORMAL 1-40
SW1 UP / SW2 DOWN: (ch.15-27) 26.815 to 26.955
SW1 UP / SW2 UP:
1= 27.605 6= 27.505 11= 27.565 20= 27.525
2= 27.455 7= 27.515 12= 27.585 23= 27.575
3= 27.465 8= 27.535 13= 27.595
4= 27.485 9= 27.545 14= 27.605
5= 27.495 10= 27.555 16= 27.475
SW1 DOWN / SW2 UP: (ch. 1-40) 27.605 to 28.045
COBRA 2000 GTL
MODULATION: VR12 or Cut R131
AM POWER: VR10
SSB POWER: VR11
AM SIGNAL METER: VR1
SSB SIGNAL METER: VR2
SQUELCH: VR3
CARRIER BALANCE: VR4
TX FREQ.: VR5
TX METER: VR6
MODULATION METER: VR7
FINAL BIAS(50 Ma): VR8
DRIVER BIAS(25 Ma): VR9
POWER TWEAK:
1. Remove TR24
2. Replace R126 (10k) with a 2.2k
3. Replace R124 (10k) with a 4.7k
Re-tune coils L37,L38 for maximum forward power.
REPAIR TIPS:
Frequency counter eratic:
1. Find D528 (5.7v 1/2W zener) located in the freq. counter module.
2. Replace it with an NTE-136A 1 watt zener.
Transmit on SSB, but not on AM:
1. Find the regulator TR41 (2sc1419) and remove it.
2. Replace with a GE-66(10 amp) or an NTE-152 (7 amp)
Channel display glows dim after radio is shut down, freq. counter may be unstable
1. Find Fet-501 and Fet-502 located in freq. counter module and replace them.
Older models use: 2SK19GR
Newer models use: 2SK192A
CLARIFIER:
1. Remove R44 and D52.
2. Remove R174 and put a jumper in its place.
3. Follow the YELLOW wire from the clarifier control to where it connects to the PCboard and UNSOLDER it.
4. Solder this YELLOW wire to the PC board ground.
5. Follow the RED wire from the clarifier control to where it connects to the PC board and UNSOLDER it.
6. Solder this RED wire to pin #3 of MB3756 regulator.
7. Find the BROWN wire on the clarifier control UNSOLDER it, and tape it out of the way.
No smoke? Then you must have about 1Kc slide up and 5Kc down!
|
COURIER RADIOS
Model |
Modulation |
AM Power |
SSB Power |
BLAZER 40D |
VR9 or Cut D12 |
T13 L9 |
|
CADET |
Cut D4 |
L14 L15 |
|
CARAVELLE II |
VR6 or Cut D6 |
L2 |
|
CARAVELLE 40D |
R504 orCut D503 |
L404 L403 |
|
CENTURIAN 23 |
VR14 or Cut D46 & D47 |
VR17 L12 L14 |
VR12 L15 |
CENTURIAN 40D |
RT601 |
RT14 |
RT14 |
CENTURIAN PLL40 |
RT9 or Cut D24 |
RT14 |
RT14 |
CLASSIC II |
R715 |
C934 L14 L15 |
|
CLASSIC III |
R523 or Cut D506 |
|
|
CLASSIC IV |
RV3 or Cut D9 |
L11 L13 |
|
CLASSIC PLL40 |
VR6 ot Remove C508 or Cut D505 |
L903 L906 |
|
CONQUEROR II |
VR6 or Cut D6 |
L2 |
|
CONQUEROR 40D |
R504 or Cut D503 |
L404 L403 |
|
CRUISER |
Cut D17 or D18 |
L7 L8 L9 |
|
GALAXY |
VR11 or Cut R104 |
VR6 |
VR7 |
GALAXY IV |
RV3 |
RV7 |
RV8 |
GALAXY V |
RV14 or Cut R249 |
VR13 |
VR12 |
GALAXY VI |
RV14 or Cut R249 |
VR13 |
VR12 |
GLADIATOR |
VR14 |
VR17 |
VR15 |
NIGHTRIDER 40DR |
VR301 |
L120 L119 |
|
RANGLER 40D |
VR301 |
L120 L119 |
|
REBEL 23+ |
Cut D12 |
L13 L12 L9 |
|
REBEL 40A |
VR207 or Cut D212 |
L211 L212 L214 |
|
REBEL PLL |
VR207 or Cut D212 |
L214 |
|
REDBALL |
Cut D17 or D18 |
L7 L8 L9 |
|
RENEGADE 40 |
VR9 or Cut D12 |
T13 L9 |
|
ROGUE 40 |
VR5 or Cut D12 |
L9 |
|
SPARTAN SSB |
Cut D54 & D53 |
VR14 |
VR9 |
TRAVELLER II |
VR6 |
L16 L18 L20 |
|
D
DAK RADIOS
Model |
Modulation |
AM Power |
SSB Power |
DAK IX (old) |
RV202 or Remove Q202 |
C714 |
|
DAK X |
REMOVE Q37 & Q38 |
RV201 |
RV2 |
MARK II |
Remove C226 |
L307 L308 L309 |
|
MARK V |
RV202 or Cut D202 |
L306 L307 L308 |
|
G
GALAXY RADIOS
Model |
Modulation |
AM Power |
SSB Power |
2100 |
VR14 or Cut R249 |
VR13 |
VR14 |
33 PLUS |
VR14 or Remove TR53 |
VR13(LOW) L32 L33 (HI) |
|
DX 11B |
VR14 |
VR803..AM/FM Low Power VR13...AM/FM High Power |
VR12 |
DX 22B |
VR14 |
VR15...AM Low Power VR13...High Power |
VR12 |
DX 2517 |
VR16 |
VR18...AM/FM Low Power VR14...AM/FM High Power |
VR17 |
DX 2527 |
VR14 |
VR15...AM Low Power VR13...High Power |
VR16 |
DX33 HML |
Cut R249 |
VR13 (HI PWR) |
|
DX33 HML (late) |
VR14 or Remove TR53 |
VR13(HI PWR) VR16(LO PWR) |
|
DX 44V |
Cut R249 |
VR13 (HI PWR) |
|
DX 55V |
VR14 or Remove TR53 |
VR13(HI PWR) VR16(LO PWR) |
|
DX 66V |
VR14 or Remove TR53 |
VR13(HI PWR) VR16(LO PWR) |
|
DX 77HML |
VR14 or Remove TR53 |
VR13(HI PWR) VR16(LO PWR) |
VR12 |
DX 77V |
VR14 or Remove TR53 |
VR13(HI PWR) VR16(LO PWR) |
VR12 |
DX 88HL |
VR14 or Cut R249 |
VR13 |
VR12 |
DX 949 |
VR16 |
VR18...AM Low Power VR14...AM High Power |
VR13 VR17 |
DX 99V |
VR14 or Remove TR53 |
VR13(HI PWR) VR16(LO PWR) |
VR12 |
DX 959 |
VR16 |
VR18...AM Low Power VR14...AM High Power |
VR13 VR17 |
Galaxy II |
VR14 or Cut R249 |
VR13 |
VR12 |
Jupiter |
VR14 or Cut R249 |
VR13 |
VR12 |
Mars |
Cut One End Of R104 & D11 |
L14 L12 L11 L10 (HI PWR) |
|
Mirage 44 |
Cut R249 |
VR13 |
VR12 |
MIRAGE 44 (EPT 360014B Board) |
VR14 or Remove TR53 |
VR13(HI PWR) VR16(LO PWR) |
|
MIRAGE 66 |
Cut R249 |
VR13 |
VR12 |
MIRAGE 88 |
Cut R249 |
VR13 |
VR12 |
PLUS |
VR14 or Cut R249 |
VR13 |
VR12 |
PLUTO |
VR14 or Cut R249 |
VR13 |
VR12 |
PLUTO (late) |
VR14 or Remove TR53 |
VR13(HI PWR) VR16(LO PWR) |
VR12 |
SATURN |
VR14 or Cut R249 |
VR13 |
VR12 |
SATURN II |
VR14 or Remove TR53 |
VR13(HI PWR) VR16(LO PWR) |
VR12 |
SIRIUS |
VR4 or Cut R124 |
L18 L21 L25 |
|
SUPER GALAXY |
VR14 or Cut R249 |
VR13 |
VR12 |
Here are all the VR's for the DX88HL:
1.VR 1...AM/FM S-Meter
2.VR 2...SSB S-Meter
3.VR 3...SSB Squelch Range
4.VR 4...AM/FM Squelch Range
5.VR 5...FM Deviation
6.VR 7...SSB Carrier Balance
7.VR 8...RF Meter
8.VR10...Final Bias
9.VR11...Driver Bias
10.VR12...SSB ALC
11.VR13...AM/FM High Power
12.VR14...AM Modulation
13.VR16...AM/FM Low Power
14.VR20...Final Bias
15.VR21...TX Offset
Galaxy Radios
Galaxy 44V
Channel Expansion
1) Open up your radio.
2) Find the small circuit board on the left of the radio.
3) Cut the green wire and tape it off.
4) There is an unplugged connector by this board..plug it in.
5) Near the front of the radio there is a connector marked +10K. Reconnect the plug to the board.
6) That's it.!You now have 8 bands of 40 channels.25.165-28.755.
Tweak & Peak
Audio Limiter - R249
AM Power - VR13
Galaxy 55V
Tweak & Peak
Audio Limiter - TR53
AM Power - VR13
Galaxy 66V
Channel Expansion
1) Open up your radio.
2) Find the small circuit board on the left of the radio.
3) Cut the green wire and tape it off.
4) There is an unplugged connector by this board..plug it in.
5) Reconnect the plug to the board.
6) That's it. You now have 8 bands, Channels 25.165-28.755.
Tweak & Peak Audio Limiter - TR53
AM Power - VR13
Galaxy 99V
Tweak & Peak
Audio Limiter - TR53
AM Power - VR13
GENERAL ELECTRIC RADIOS
Model |
Modulation |
AM Power |
SSB Power |
3-5800A |
VR5 or Cut D507 or D508 |
L906 |
|
3-5801A |
VR7 or Cut D505 |
L905 L903 |
|
3-5804 |
RV5 or Cut D12 |
T4 T5 L3 |
|
3-5804A |
VR7 or Cut D505 |
L905 L903 |
|
3-5804B |
VR8 or Remove Q503 |
L905 L903 |
|
3-5804D |
RV2 or Remove C96 |
L7 L11 L12 |
|
3-5804F |
Cut D8 or Change R87 to 1.2k |
L9 L12 L16 |
|
3-5804G |
RV5 or Cut D12 |
T4 T5 L3 |
|
3-5805A |
Cut D13 |
L8 L9 L12 |
|
3-5805B |
RV201 |
L304 L305 L306 |
|
3-5806 |
Cut D9 |
L9 L11 L12 |
|
3-5806A |
VR4 |
L11 L12 |
|
3-5810A |
VR7 |
Cut D505 or D504 |
|
3-5810B |
RV102 or Cut D111 |
L110 L109 |
|
3-5811B |
RV2 or Remove C96 |
L7 L11 L12 |
|
3-5813A |
RV2 or Remove C96 |
L7 L11 L12 |
|
3-5813B |
RV2 or Remove C96 |
L7 L11 L12 |
|
3-5814A |
RV2 or Cut D10 |
L10 L5 L9 |
|
3-5814B |
RV2 or Remove C96 |
L7 L11 L12 |
|
3-5814D |
Remove Q14 |
|
|
3-5815A |
VR504 or Cut D512 |
L903 |
|
3-5816A |
RV4 |
L5 L6 L7 L8 |
|
3-5817A |
RV2 or Cut D11 |
T3 T4 L3 |
|
3-5818A |
VR2 or Remove C98 |
L5 L9 L10 |
|
3-5819A |
RV2 or Remove C96 |
L7 L11 L12 |
|
3-5819B |
VR2 or Remove C98 |
L5 L9 L10 |
|
3-5821A |
VR10 or Cut R554 or Cut D519 |
L903 L905 |
|
3-5821B |
VR10 or Cut R554 or Cut D519 |
L903 L905 |
|
3-5825A |
RV12 or Remove Q37 & Q38 |
VR5 |
RV2 |
3-5825B |
RV9 |
VR1 |
RV3 RV201 |
3-5826A |
RV6 |
RV7 |
RV5 RV2 |
3-5827A |
RV501 |
L305 L308 |
|
3-5830 |
VR2 |
L4 L1 L3 |
|
3-5869A |
RV2 or Cut D10 |
L5 L9 L10 |
|
3-5871A |
VR6 or Cut D504 & D505 |
L905 |
|
3-5871B |
VR11 or Cut D504 |
L905 L903 |
|
3-5875A (SUPERBASE) |
RV9 or Remove C71 |
VR10 |
RV20 |
3-5900A |
RV3 or Remove V71 |
VR10 |
|
HUNTER RADIO
Model |
Modulation |
AM Power |
SSB Power |
Hunter 120 |
RV3 or Cut D9 |
L11 L12 L13 |
|
HY-GAIN RADIOS
Model |
Modulation |
AM Power |
SSB Power |
2679A |
RV102 or Cut D111 |
L110 L109 |
|
2680 |
RV102 or Cut D111 |
L110 L109 |
|
2681 |
RV102 or Cut D111 |
L110 L109 |
|
2682 |
RV102 or Cut D111 |
L110 L109 |
|
2683 |
RV102 or Cut D111 |
L110 L109 |
|
2701 |
RV102 or Cut D111 |
L110 L109 |
|
2702 |
RV2 or Remove C96 |
L7 L11 L12 |
|
2703 |
RV2 or Remove C96 |
L7 L11 L12 |
|
2705 |
Remove Q37 & Q38 |
VR4 |
RV2 |
2710X |
RV201 or Cut D111 |
L106 L109 L110 |
|
2720 |
RV201 or Cut D111 |
L106 L109 L110 |
|
2795 |
RV14 |
RV13 |
RV12 RV4 |
2795-DX |
RV14 |
RV13 |
RV12 RV4 |
3077 |
RV2 or Cut D10 |
L9 L8 |
|
670B |
RV2 or Cut D10 |
L7 L8 L9 |
|
670B-PR |
RV2 or Cut D10 |
L7 L8 L9 |
|
672B |
RV2 or Cut D10 |
L7 L8 L9 |
|
8795 (V) |
RV12 |
RV11 |
RV6 RV3 |
HYGAIN 16 (2716) |
RV2 or Remove C209 |
L109 L110 |
|
HYGAIN 9 (2679) |
RV102 or Cut D111 |
L110 L109 |
|
HYGAIN I |
RV102 or Cut D111 |
L110 L109 |
|
HYGAIN II |
RV102 or Cut D111 |
L110 L109 |
|
HYGAIN VII |
RV2 or Remove C96 |
L7 L11 L12 |
|
HYGAIN VIII (3078) |
RV7 or Cut D301 |
RV608 |
RV8 RV5 |
HY-RANGE I |
Cut D6 |
D10 D11 |
|
HY-RANGE IA |
RV102 or Cut D111 |
L110 L109 |
|
HY-RANGE II |
Cut D6 |
D10 D11 |
|
HY-RANGE IIA |
RV102 or Cut D111 |
L110 L109 |
|
HY-RANGE III |
RV103 |
L110 L111 VC2 |
|
JOHNSON RADIOS
Model |
Modulation |
AM Power |
SSB Power |
110 |
Cut X6 |
A13 A14 |
|
120A |
Cut CR5 |
L3 L4 |
|
121A |
Cut CR5 |
L3 L4 |
|
123 |
Cut D7 |
|
|
123A |
Cut CR11 |
L6 L7 |
|
123B |
Cut CR11 |
L6 L7 |
|
123SJ |
Cut CR11 |
L6 L7 |
|
125 |
Cut D5 |
|
|
130 |
Cut CR11 |
L6 L7 |
|
132 |
Cut CR11 |
L6 L7 |
|
250 |
Cut CR11 |
L6 L7 |
|
320 |
Cut X11 |
|
|
323 |
Cut X11 |
|
|
323M |
Cut D17 |
|
|
MESSENGER 323A |
Remove C93 or Cut CR19 |
L10 L9 |
|
MESSENGER 351 |
VR7 or Cut D34 |
L7 L8 |
|
MESSENGER 40 |
VR49 or Cut CR62 |
L84 L85 L86 |
|
MESSENGER 4120 |
Cut CR12 |
L3 L4 L6 |
|
MESSENGER 4125 |
Cut CR12 |
L3 L4 L6 |
|
MESSENGER 4135 |
Cut CR12 |
L3 L4 L6 |
|
MESSENGER 4140 |
Cut CR12 |
L3 L4 L6 |
|
MESSENGER 4145 |
Cut CR12 |
L3 L4 L6 |
|
MESSENGER 4170 |
Cut CR12 |
L3 L4 L6 |
|
MESSENGER 4175 |
Cut CR12 |
L3 L4 L6 |
|
MESSENGER 4190 |
Cut CR12 |
L3 L4 L6 |
|
MESSENGER 4230 |
Cut CR12 |
L3 L4 L6 |
|
MESSENGER 4250 |
Cut CR12 |
L3 L4 L6 |
|
MESSENGER 4730 |
R207 or Cut CR202 |
T704 T705 T706 |
R725 |
MESSENGER 50 |
VR49 or Cut CR62 |
L84 L85 L86 |
|
MESSENGER 80 |
VR49 or Cut CR62 |
L84 L85 L86 |
|
VIKING 200 |
Cut CR12 |
L3 L4 L6 |
|
VIKING 230 |
R49 or Cut CR64 |
T83 L84 |
|
VIKING 260 |
R49 or Cut CR64 |
T83 L84 |
|
VIKING 270 |
R49 or Cut CR64 |
T83 L84 |
|
VIKING 352 |
R216 or Cut CR203 |
T702 T703 |
R727 |
VIKING 430 |
R49 or Cut CR64 |
T83 L84 |
|
VIKING 4330 |
R227 or Cut CR12 |
T8 |
|
VIKING 4360 |
R227 or Cut CR12 |
T8 |
|
VIKING 4740 |
R216 or Cut CR203 |
T704 T705 T706 |
R726 |
KRIS RADIOS
Model |
Modulation |
AM Power |
SSB Power |
KRIS 99'ER |
R74 or Cut D4 |
L14 L15 T7 |
|
VEGA |
R74 or Cut D4 |
L14 L15 T7 |
|
VICTOR |
R51 or Cut CR11 |
L12 L13 |
|
VICTOR II |
R51 or Cut CR11 |
L12 L13 |
|
XL-23A |
VR6 or Cut D10 or D11 |
L12 L13 |
|
XL-25 |
VR6 or Cut D10 or D11 |
L12 L13 |
|
XL-45 |
VR201 or Cut D205 & D206 |
L309 L308 |
|
XL-50 |
VR301 or Cut D305 & D304 |
L13 |
|
XL-70 |
VR206 or Cut D214 & D213 |
VC201 |
VR104 |
L
LAFAYETTE RADIOS
Model |
Modulation |
AM Power |
SSB Power |
1800 |
RV12 |
RV11 |
RV6 RV3 |
2400-FM |
RV12 |
RV11 |
RV6 RV3 |
CBH-740 |
RV2 or Remove C96 |
L7 L11 L12 |
|
COM-PHONE-23 |
RV4 or Cut D11 |
L7 L8 |
|
COM-PHONE-23A |
RV102 or Cut D111 |
L110 L109 |
|
COM-PHONE-Mark II |
RV4 or Cut D16 |
L7 L8 |
|
COMSAT-35 |
RV4 |
L6 CV3 |
|
COMSAT-525 |
RV2 or Remove C96 or Cut D11 |
L7 L11 L12 |
|
DYNA-COM 40 |
RV2 or Remove C96 or Cut D11 |
L7 L11 L12 |
|
DYNA-COM 5A |
R4 or Cut X4 |
A9 A10 |
|
HB-4000 |
VR2 or Cut D8 |
L4 L3 L1 |
|
HB-525F |
RV4 |
L13 VC VR6 |
|
HB-550 |
Remove C217 or Cut D201 |
L308 L307 |
|
HB-625A |
VR4 |
VC1 L12 L13 |
|
HB-640 |
RV2 or Remove C96 or Cut D11 |
L7 L11 L12 |
|
HB-650 |
RV102 or Cut D111 |
L110 L109 |
|
HB-700 |
RV203 or Cut D211 |
L215 VC1 |
|
HB-740 |
RV2 or Remove C96 or Cut D11 |
L7 L11 L12 |
|
HB-750 |
RV102 or Cut D111 |
L110 L109 |
|
HB-870 AFS |
RV14 |
RV13 |
RV12 RV4 |
HB-940 |
RV2 or Remove C96 or Cut D11 |
L7 L11 L12 |
|
HB-950 |
RV102 or Cut D111 |
L110 L109 |
|
LM-100 |
RV2 or Cut d3 |
L7 L11 L12 |
|
LM-200 |
VR305 or Cut D312 |
L402 L405 |
|
LM-300 |
RV2 or Cut D3 |
L7 L11 L12 |
|
LM-400 |
VR201 or Cut D205 |
L201 L204 |
|
MB-740 |
Remove Q15 |
|
|
MICRO-223A |
RV102 or Cut D111 |
L110 L109 |
|
MICRO-66 |
RV102 or Cut Q118 |
L103 L102 C001 |
|
MICRO-723 |
Cut D107 |
L115 |
|
TELSAT SSB-100 |
RV7 or Cut D301 |
RV607 |
RV8 RV5 |
TELSAT SSB-140 |
RV12 |
VR4 |
RV11 RV2 |
TELSAT SSB-25A |
RV8 or Cut D22 |
L18 L19 TC18 |
RV9 RV7 |
TELSAT SSB-50A |
RV8 or Cut D22 |
L18 L19 TC18 |
RV9 RV7 |
TELSAT SSB-75 |
RV7 or Cut D206 |
RV304 |
RV8 RV5 |
TELSAT-1000 |
Cut D201 |
L308 L307 |
|
TELSAT-1023 |
RV103 |
L114 L115 |
|
TELSAT-1050 |
RV102 or Cut D111 |
L110 L109 |
|
TELSAT-1140 |
RV2 or Remove C96 or Cut D11 |
L7 L11 L12 |
|
TELSAT-1240 |
VR305 orCut D312 & D311 |
L402 L405 L406 |
|
TELSAT-925 |
VR6 or Cut D13 |
L8 VC |
|
MIDLAND RADIOS
Model |
Modulation |
AM Power |
SSB Power |
1001 |
RV201 or Cut D203 |
L304 L305 L306 |
|
100M |
RV201 or Cut D203 |
L304 L305 L306 |
|
101M |
RV201 or Cut D203 |
L304 L305 L306 |
|
102M |
RV201 or Cut D203 |
L304 L305 L306 |
|
103M |
RV201 or Cut D203 |
L304 L305 L306 |
|
104M |
VR4 |
L14 L13 L12 |
|
105M (77-150) |
RV201 or Cut D203 |
L304 L305 L306 |
|
13-700 |
VR4 |
L7 L8 L11 |
|
13-729 |
Cut D105 |
L101 |
|
13-779 |
Cut D8 |
L5 |
|
13-796 |
VR4 |
L5 |
|
13-830 |
RV102 or Cut D111 |
L110 L109 |
|
13-845 |
VR502 or CutD502 |
L6 L5 |
|
13-852 |
VR5 or Cut D703 or D702 |
L914 VC1 |
|
13-853 |
VR5 or Cut D703 or D702 |
L914 VC1 |
|
13-854 |
Cut D6 |
C4 L2 |
|
13-857 |
RV2 or Cut D10 |
L8 L9 |
|
13-857B |
RV102 or Cut D111 |
L110 L109 |
|
13-858 |
RV102 or Cut D111 |
L110 L109 |
|
13-862 |
R58 or Cut D8 |
T14 L3 |
|
13-862B |
R58 or Cut D8 |
T14 L3 |
|
13-863 |
RV103 or Cut D111 |
L113 L114 L115 |
|
13-863B |
RV2 or Cut D10 |
L8 L9 |
|
13-866 |
Cut D1 |
L5 |
|
13-867 |
Cut D14 |
L12 L13 |
|
13-870D |
VR3 or Cut D10 |
L3 L4 |
|
13-871 |
VR9 or Cut D14 |
L12 L13 L15 |
|
13-879 |
Remove C88 |
L15 |
|
13-879B |
R58 |
L3 C5 |
|
13-881 |
VR7 or Cut D26 |
L2 L21 |
|
13-882 |
Cut D6 |
L10 L11 L9 |
|
13-882B |
RV2 or Cut D10 |
L8 L9 |
|
13-882C |
Remove Q121 |
L109 L110 |
|
13-883 |
Cut D24 |
L11 L7 L8 |
|
13-883B |
VR213 or Cut D216 |
L212 L215 |
|
13-884 |
VR7 or Cut D506 or D505 |
L909 L908 |
|
13-886 |
RV2 or Cut D10 |
L8 L9 |
|
13-887 |
RV103 or Cut D111 |
L113 L114 L115 |
|
13-888B |
RV102 or Cut D111 |
L110 L109 |
|
13-892 |
RV7 or Cut D206 |
RV305 |
|
13-893 |
VR12 or Cut D41 & D40 |
L8 |
VR15 |
13-894 |
VR9 or Cut D48 |
L13 L11 |
VR11 |
13-895 |
VR12 or Cut D41 & D40 |
L8 |
VR15 |
13-896 |
VR9 or Cut D48 |
L13 L11 |
VR11 |
13-898 |
RV301 or Cut D302 |
L1 TC1 |
RV302 RV106 |
13-898B |
RV302 or Cut D301 |
L113 L114 L112 |
L107 RV301 |
13-955 |
RV102 or Cut D111 |
L110 L109 |
|
13-976 |
RV7 or Cut D206 |
RV605 |
RV8 RV5 |
2001 |
RV201 or Cut D203 |
L304 L305 L306 |
|
200M (77-200) |
VR4 or Cut D11 |
L11 L14 |
|
3001 |
RV201 or Cut D203 |
L304 L305 L306 |
|
4001 |
RV201 or Cut D203 |
L304 L305 L306 |
|
5001 (77-005) |
RV2 or Cut D10 |
T4 L5 L10 |
|
52-100 (CARAVAN) |
RV2 |
L7 L12 |
|
6001 (79-006) |
RV9 |
VR1 |
RV8 RV10 |
6001 (79-012 ONLY) |
VR5 |
VR10 |
VR6 |
6001(7) |
VR5 |
VR10 |
VR6 |
63-445 |
VR5 or Cut D119 |
L112 L109 |
|
7001 |
RV9 |
VR1 |
RV8 RV10 |
7001(7) |
VR5 |
VR10 |
VR6 |
7001(8) |
RV12 |
RV11 |
RV6 RV3 |
76-300 (BASE AM) |
RV201or Cut D203 |
L304 L305 L306 |
|
76-858 |
RV2 or Remove C96 |
L7 L11 L12 |
|
76-860 |
VR6 or Cut D7 |
L3 L4 L5 L7 |
|
76-863 |
RV2 or Remove C96 |
L7 L11 L12 |
|
76-886 |
RV2 or Remove C96 |
L7 L11 L12 |
|
77-094 |
RV2 or Cut J27 |
L7 L6 |
|
77-099 |
RV4 or Cut D8 |
L10 L11 L13 |
|
77-101B |
RV201or Cut D203 |
L304 L305 L306 |
|
77-101C |
RV201or Cut D203 |
L304 L305 L306 |
|
77-104 |
RV4 |
L14 L13 L12 |
|
77-106 |
RV4 (Located Next To C45) |
L11 L12 L13 |
|
77-112 |
RV4 or Remove C45 |
L11 L12 |
|
77-116 |
RV2 or Cut D7 |
L8 L9 L10 |
|
77-118 |
RV501 or Cut D502 |
L304 L305 L306 L307 |
|
77-145A |
RV104 or Cut D111 |
L204 L206 L207 L208 |
|
77-149 |
Cut D206 |
L12 L11 L10 |
|
77-151 (77-151M |
RV201or Cut D203 |
L305 L306 |
|
77-155 |
VR4 or CutR42 or D16 |
LX12 LX13 LX14 |
|
77-202A (202M) |
VR201 or Cut D203 |
L305 L306 |
|
77-225A |
RV4 |
L13 L14 L15 |
|
77-250 |
RV201or Cut D203 |
L304 L305 L306 L307 |
|
77-808 |
RV2 or Cut D10 |
L5 L9 L10 |
|
77-821 |
RV2 or Cut D10 |
L5 L9 L10 |
|
77-824 |
RV201or Cut D203 |
L304 L305 L306 |
|
77-824B |
VR5 or Cur D20 & D19 |
L15 L16 L12 |
|
77-824C |
RV201or Cut D203 |
L304 L305 L306 |
|
77-825 |
Remove C38 or Cut D3 |
T4 T5 L3 |
|
77-830 |
RV2 or Remove C96 |
L7 L11 L12 |
|
77-838 |
RV2 or Remove C96 |
L7 L11 L12 |
|
77-849 |
RV2 or Remove C96 |
L7 L11 L12 |
|
77-853 |
VR7 |
L205 L903 L901 |
|
77-856 |
VR5 or Cut D9 |
L16 L15 L12 |
|
77-857 |
RV2 or Remove C96 |
L7 L11 L12 |
|
77-859 |
RV2 or Remove C98 or Cut D10 |
L5 L9 L10 |
|
77-860 |
VR6 or Cut D7 |
L3 L4 L5 L7 |
|
77-861 |
Cut D2 |
L4 L5 L13 |
|
77-861B |
Remove C53 |
T2 T3 T4 |
|
Model |
Modulation |
AM Power |
SSB Power |
77-865 |
VR5 or Cut D21 |
L16 L15 L12 |
|
77-882 |
VR2 or Cut C96 |
L7 L11 L12 |
|
77-883 |
VR401 |
L215 |
|
77-888 |
RV2 or Remove C96 |
L7 L11 L12 |
|
77-889 |
RV2 or Remove C96 |
L7 L11 L12 |
|
77-899 |
RV2 or Remove C96 |
L7 L11 L12 |
|
77-955 |
RV2 or Remove C96 |
L7 L11 L12 |
|
77-963 |
RV2 or Remove C96 |
L7 L11 L12 |
|
78-574 |
RV9 or Remove C71 or Cut D22 |
VR1 |
RV3 RV201 |
78-976 |
RV12 or Remove Q37 & Q38 |
VR4 |
RV11 RV2 |
78-999 |
RV9 or Remove C71 |
VR2 |
RV3 RV201 |
79-012 (6001) |
VR5 |
VR10 |
VR6 |
79-265 |
RV3 |
RV7 |
RV8 |
79-891 |
RV9 or Remove C71 |
VR2 |
RV3 RV201 |
79-892 |
RV12 or Remove Q37 & Q38 |
VR4 |
RV11 RV2 |
79-893 |
RT601 |
VR6 |
VR7 |
79-900(4) |
VR6 or Cut R104 |
VR7 |
CT4 |
79-900(5) |
Cut R104 |
VR6 |
VR7 |
PEARSE SIMPSON RADIOS
Model |
Modulation |
AM Power |
SSB Power |
ALLYCAT 23 |
Cut D11 |
L5 L8 |
|
BEARCAT 23C |
Cut D16 |
L15 L16 L19 |
|
BENGAL SSB |
Cut R109 |
L9 VR17 |
VR16 |
BOBCAT 23B |
Cut D7 |
L8 L10 |
|
BOBCAT 23C |
Cut D9 |
L8 L10 |
|
BOBCAT 23D |
VR4 or Cut D18 or D19 |
L10 |
|
BOBCAT 23E |
Cut D9 |
L8 L10 |
|
CHEETAH SSB |
Cut D53 & D54 |
L13 L10 VR15 |
L12 VR17 |
COURGAR 23 (late) |
VR6 or Cut D15 |
L22 |
|
COURGAR 23B |
Cut D16 |
L15 L16 L19 |
|
JAGUAR 40B |
FVR3 or Cut D10 or D11 |
L26 L25 |
|
LEOPARD B |
VR903 or VR902 |
VR901 |
|
LION 40 |
RV2 or Cut C96 |
L7 L11 L12 |
|
LYNX 23 |
VR9 or Cut D14 |
L6 L5 |
|
MARK II |
RV102 or Cut D111 |
L106 L110 L109 |
|
PANTHER SSB |
Cut D53 & D54 |
VR4 |
VR9 |
PUMA 23B |
Remover C50 or Cut R58 |
L4 L5 L8 |
|
PUMA 23C |
Cut D9 |
L8 L10 |
|
PUSSYCAT 23 |
R152 or Cut CR107 |
C162 L111 |
|
SIMBA SSB (late) |
VR14 or Cut D47 & D48 |
L12 L14 VR17 |
VR12 |
SUPER LYNX |
Remove C103 or Cut D12 |
L8 L5 |
|
SUPER TIGER 40A |
VR13 or Cut D8 |
L12 L9 L6 |
|
TIGER 23B |
Cut D10 |
L4 L7 |
|
TIGER 23C |
Cut D12 |
L4 L5 L8 |
|
TIGER 23D |
Cut D10 |
L4 L7 |
|
TIGER 40 |
RV2 or Cut C96 |
L7 L11 L12 |
|
TIGER 40A |
RV102 or Cut D111 |
L106 L110 L109 |
|
TOMCAT 23B |
VR4 or Cut D18 |
L10 L8 |
|
TOMCAT23C |
Change CR56 to 800 OHMS |
L9 |
|
PRESIDENT RADIOS (Also see Uniden radios)
Model |
Modulation |
AM Power |
SSB Power |
ADAMS |
VR7 & VR6 |
VR8 |
CT7 |
ANDREW JACKSON |
VR5 or Cut D9 |
L13 L10 L9 L8 |
|
AR-14 |
Cut D9 |
L15 L12 L11 |
|
AR-144 |
VR5 or Remove TR29 |
VR10 |
VR6 |
AR-44 |
VR5 or Cut D9 |
L13 L10 L9 L8 |
|
AR-7 |
Cut D8 or Change R87 to 1.2k |
L10 L12 L16 |
|
AR-711 |
VR5 or Cut D9 |
L13 L10 L9 L8 |
|
AX-11 |
VR3 or Cut R54 |
L12 L14 |
|
AX-14 |
Cut D9 |
L15 L12 L11 |
|
AX-144 |
VR5 or Remove TR29 |
VR10 |
VR6 |
AX-24 |
VR3 or Cut R54 |
L12 L14 |
|
AX-4 |
Cut D19 & D13 |
|
|
AX-43 |
Cut D12 |
L8 L9 L12 |
|
AX-44 |
VR5 or Cut D9 |
L13 L10 L9 L8 |
|
AX-52 |
Remove TR13 |
L9 L12 |
|
AX-55 |
Remove TR13 |
L9 L12 |
|
AX-7 |
Cut D13 |
L8 L9 L12 |
|
AX-711 |
VR5 or Cut D9 |
L13 L10 L9 L8 |
|
CONVOY II |
Cut D18 |
L11 L9 L8 |
|
DWIGHT D (858) |
VR5 or Cut D14 |
L15 L12 L11 |
|
GRANT (858) |
VR7 & VR6 |
VR8 |
CT7 |
GRANT-DX |
VR14 |
VR13 |
VR12 |
HONEST ABE (858) |
VR5 or Cut D14 |
L15 L12 L11 |
|
JACKSON |
VR12 or Remove TR26 |
VR11 |
VR8 |
JACKSON (new) |
VR12 |
VR11 |
VR8 |
JAMES K |
Cut D4 |
L15 L17 |
|
JFK |
Cut Brown Wire Next To D8 |
L20 L15 L14 (HI PWR) |
|
JOHN Q |
RT4 or Cut D13 |
L15 L12 L11 |
|
LINCOLN |
VR114 |
VR103 |
VR102 |
MADISON (858 |
VR7 & VR6 |
VR8 |
CT7 |
McKINLEY (101001) |
Cut R104 |
VR6 |
VR7 |
McKINLEY (EXPORT) |
VR5 |
VR11 |
VR11 |
OLD HICKORY |
VR5 or Cut R75 |
L11 L12 |
|
P-200 |
Cut D14 |
L6 L5 L4 |
|
P-210 |
Cut D14 |
L6 L5 L4 |
|
P-220 |
VR5 or Cut D9 |
L10 L9 L8 |
|
P-300 |
VR5 |
VR10 |
VR6 |
P-400 |
Cut R104 |
VR6 |
VR7 |
TEDDY R (858) |
VR5 or Cut D14 |
L15 L12 L11 |
|
THOMAS J (1013001) |
VR4 or Cut D11 |
L14 L13 L12 |
|
VEEP |
VR6 or Cut D9 |
L12 L15 L16 |
|
WASHINGTON (858) |
VR7 & VR6 |
VR8 |
CT7 |
ZACHARY T (858) |
VR5 or Cut D14 |
L15 L12 L11 |
|
President Grant Export Mods
President Grant extra Channels
1)The switch needed is a SPST/CENTER-OFF type.Mount this in the radio somewhere.
2)Find the PLL MB8719 chip.Find pin #11 and cut the trace going to it on the foil side of the PCB.
3)Solder a 4.7k ohm resistor across the cut that you just made.
4)Now you are ready to attach the wires from the switch to the locations on the PCB.
5)Solder a wire from the top pin on the switch to PCB ground.
6)Solder a wire from the middle pin on the switch to pin #11.
7)Solder a wire from the tbottom pin on the switch to pin #9.
(If you do not get ALL the new channels adjust the VCO coil,l-18)
With the switch in the UP position:
12 = 27.875 17 = 27.935 22 = 27.995 26 = 28.035 13 = 27.885 18 = 27.945 23 = 28.025 27 = 28.045 14 = 27.895 19 = 27.955 24 = 28.005 28 = 28.055 15 = 27.905 20 = 27.975 25 = 28.015 . 16 = 27.925 21 = 27.985 .
With the switch in the CENTER position is regular channels
With the switch in the DOWN position:
12 = 26.335 17 = 26.395 21 = 26.455 24 = 26.475 13 = 26.345 18 = 26.405 22 = 26.465 25 = 26.485 14 = 26.355 19 = 26.425 23 = 26.495 26 = 26.495 15 = 26.365 20 = 26.445 27 = 26.505 16 = 26.385 .
President Grant SLIDER mod
1) Cut D-45.
2) Find D-79 and jump it (Solder a wire across it)
3) Remove r-120 and replace it with a 470 ohm resistor.
4) Find the BLUE wire from the clarifier knob and cut it just before it connects to the PCB. Solder it into the hole that is next to where R-120 is.
5) Find the GREY wire from the clarifier knob and cut it just before it connects to the PCB. Solder it to a constant 8.5 volt supply.(This can be the center pin of TR-39 )
Hopefully this should give you about 3 khz of slide.
President Grant 'peak & tweak'
MODULATION - Adjust VR-14
AM POWER - VR-13
SSB POWER - VR-12
REALISTIC RADIOS
Model |
Modulation |
AM Power |
SSB Power |
TRC-10A |
Cut D8 or D10 |
T10 T11 |
|
TRC-180 |
R48 |
L13 L12 L7 |
|
TRC-190 |
VR4 (LO) VR5 (HI) or Cut D11 |
L6 |
|
TRC-200 |
Cut R43 or Remove C52 or Cut D11 |
T7 L4 L5 |
|
TRC-204 |
Cut R43 or Remove C52 or Cut D11 |
T7 L4 L5 |
|
TRC-205 |
Remove TR306 |
L302 L303 L100 |
|
TRC-206 |
Cut R53 or D9 |
L8 L10 |
|
TRC-208 |
VR3 or Cut R49 |
|
|
TRC-209 |
VR5 or Cut D7 |
L4 L7 L8 |
|
TRC-210 |
Cut R77 |
L12 L8 |
|
TRC-211 |
Cut R49 |
L6 L7 VR5 |
|
TRC-212 |
Remove C76 |
L11 L12 VR4 |
|
TRC-214 |
Cut R60 |
|
|
TRC-215 |
VR2 (LO PWR MOD) VR3 (HI PWR MOD) |
VR4 L6 L7 |
|
TRC-216 |
VR2 (LO PWR MOD) VR3 (HI PWR MOD) |
VR4 L6 L7 |
|
TRC-217 |
Cut R68 |
L12 L13 |
|
TRC-218 |
Cut R70 |
L4 L3 L6 |
|
TRC-23B |
Cut D6 |
T15 T14 |
|
TRC-23C |
Cut D11 |
T15 T16 |
|
TRC-24B |
VR8 or Cut D507 |
L910 L912 L913 |
|
TRC-24C |
VR8 or Cut D507 |
L910 L912 L913 |
|
TRC-29 |
Cut D10 |
L11 L17 |
|
TRC-30 |
VR8 or Cut D507 |
L910 L912 L913 |
|
TRC-30A |
VR8 or Cut D507 |
L910 L912 L913 |
|
TRC-35C |
R501 or Cut D503 or D504 |
L902 L901 |
|
TRC-410 |
Remove Q12 |
L5 L4 L3 |
|
TRC-411 |
Cut R61 & R64 |
T10 L5 L8 |
|
TRC-412 |
Remove Q6 |
|
|
TRC-413 |
Cut R85 |
L3 L6 |
|
TRC-414 |
Cut D7 or Remove Q10 |
L3 L6 L7 |
|
TRC-415 |
RV4 or Cut R63 |
L10 L11 |
|
TRC-416 |
VR2 |
L21 L22 |
|
TRC-417 |
Cut D10 |
L10 L3 L1 |
|
TRC-418 |
Cut R73 or D10 |
L3 L10 |
|
Trc-419 |
VR202 |
L306 L305 L304 |
|
TRC-420 |
Cut D105 & D106 |
L104 L106 |
|
TRC-420-18 |
Cut D105 & D106 |
L104 L106 |
|
TRC-420A |
Cut D6 |
L5 L4 L3 |
|
TRC-421 |
Cut D16 |
L18 L9 L12 |
|
TRC-421A |
Cut D16 & D17 |
L3 L6 |
|
TRC-422 |
Cut D16 |
T18 L9 L12 |
|
TRC-422A |
Cut D16 & D17 |
L3 L6 |
|
TRC-423 |
Remove Q207 |
L305 L306 L304 |
|
TRC-424 |
VR9 or Cut D509 & D508 |
L909 L910 |
|
TRC-425 |
VR8 or Cut D508 |
L901 L902 L905 |
|
TRC-426 |
VR8 or Cut D507 |
L901 L903 L905 |
|
TRC-427 |
VR5 or Cut D19 |
L15 L12 |
|
TRC-428 |
R104 or Cut R90 |
L5 L8 |
|
TRC-429 |
VR2 |
|
|
TRC-431 |
VR7 or Cut D506 & D507 |
L905 L907 L910 |
|
TRC-432 |
Remove Q10 or Cut R56 |
L5 L4 L3 |
|
TRC-433 |
Remove Q15 |
L4 L3 |
|
TRC-434 |
Cut D11 |
L11 L12 |
|
TRC-435 |
VR4 |
L12 L19 L18 L17 |
|
TRC-440 |
Cut D107 or D108 |
L102 L104 L106 |
|
TRC-441 |
Cut D109 |
L107 L104 |
|
TRC-443 |
Cut X3 |
|
|
TRC-446 |
Cut D110 |
L106 L104 L102 |
|
TRC-448 |
VR5 or Cut D27 & D28 |
VR210 |
VR204 |
TRC-449 |
VR6 & VR7 |
VR8 |
CT7 |
TRC-450 |
Cut D42 |
VR6 |
VR7 |
TRC-451 |
VR5 |
VR10 |
VR6 |
TRC-452 |
VR207 or Cut D213 or D212 |
L212 L214 L211 |
|
TRC-453 |
VR5 |
VR10 |
VR6 |
TRC-454 |
VR702B or Cut D704 |
L903 L907 L908 |
|
TRC-455 |
R504 or Cut D503 |
C430 L404 L403 |
|
TRC-456 |
VR8 or Cut D507 |
L903 L905 |
|
TRC-457 |
VR6 & VR7 |
VR8 |
CT7 |
TRC-458 |
VR6 & VR7 |
VR8 |
CT7 |
TRC-459 |
VR13 or Cur D54 & D55 |
VR14 |
VR4 VR5 |
TRC-46 |
R212 |
T15 T16 |
R316 R213 |
TRC-461 |
VR2 or Cut D11 |
VR5 |
|
TRC-462 |
VR2 or Remove C60 |
L15 VR3 |
|
TRC-466 |
Cut D110 |
L104 L106 |
|
TRC-467 |
Cut D110 |
L104 L106 |
|
TRC-468 |
Cut D116 |
T14 T15 |
|
TRC-469 |
VR5 or Cut D17 & D18 |
L13 L11 |
|
TRC-47 |
R46 or Cut D10 & D9 |
R55 |
R102 |
TRC-470 |
VR10 or Cut D513 |
L901 L903 L905 |
|
TRC-471 |
VR2 or Remove Q6 |
L4 L3 L1 |
|
TRC-472 |
VR204 |
L212 L210 |
|
TRC-473 |
VR3 or Remove C80 |
T11 T13 T14 |
|
TRC-473 (late) |
VR4 or Cut D16 |
L8 L11 L6 |
|
TRC-474 |
VR4 or Cut D19 |
L6 L8 |
|
TRC-474 (late) |
VR4 or Cut D21 |
L12 L11 |
|
TRC-477 |
Cut R216 |
L10 L11 L12 L13 |
|
TRC-48 |
R220 |
L305 |
R316 |
TRC-480 |
VR13 or Cur D54 & D55 |
VR14 |
VR4 VR5 |
TRC-49 |
Cut D18 |
T24 T25 |
|
Trc-490 |
Cut R104 |
VR6 |
VR7 |
TRC-50B |
Cut D6 or D7 |
T15 T16 |
|
TRC-52 |
VR8 or Cut D11 |
L4 |
|
TRC-55 |
Cut D15 & D16 |
L10 L9 |
|
TRC-56 |
VR7 or Cut D507 & D508 |
L909 |
|
TRC-57 |
VR12 or Cut D33 & D31 |
VR21 |
VR25 |
TRC-61 |
R68 or Cut D12 & D11 |
R104 |
|
TRC-67 |
Cut D7 |
L3 L1 |
|
TRC-68 |
Cut D7 |
T15 T14 |
|
REGENCY RADIOS
Model |
Modulation |
AM Power |
SSB Power |
CB-1 (INFO-1) |
RV4 or Cut D9 |
L11 L12 L13 |
|
CB-2 (INFO 2) |
RV201 or Cut D203 |
L304 L305 L306 |
|
CB-501 |
Cut CR107 |
L102 L101 |
|
CB-701 |
Cut CR107 |
L102 L101 |
|
CR-123 |
Cut D54 & D53 |
VR14 |
VR9 |
CR-123B |
VR17 |
L10 L12 |
VR16 |
CR-142 |
Cut D14 |
L4 |
|
CR-185 |
Cut R73 |
L8 |
|
CR-186 |
Cut D9 |
L4 L5 L8 |
|
CR-202 |
Remove C73 or Cut D11 |
L8 L5 |
|
CR-230 |
Cut D16 |
L19 L21 |
|
CR-240 |
VR213 or Cut D218 & D219 |
L217 |
|
SPRINT-23 |
VR4 or Cut D13 |
A15 A16 |
|
ROBYN RADIOS
Model |
Modulation |
AM Power |
SSB Power |
007-140 |
VR6 or Cut D15 & D14 |
L13 L12 L11 L10 |
|
440 |
RV202 or Remove C210 |
L306 L307 |
|
K-123 |
VR4 or Cut D13 |
A16 |
|
LB-120 |
VR6 or Cut D15 & D14 |
L13 L12 L11 L10 |
|
LB-23A |
VR4 |
L9 L14 |
|
SB-505D |
Cut R104 |
VR6 |
VR7 |
SB-510D |
VR7 |
VR8 |
CT7 |
SB-520D |
VR7 |
VR8 |
CT7 |
SB-540D |
VR311 |
VR531 |
VR312 |
SX-101 |
VR5 |
L20 L23 |
|
Sx-401 |
VR7 or Cut D18 & D19 |
L16 L17 L18 |
|
SX-402 |
VR12 & VR13 or Cut D17 & D18 |
L15 L20 L21 |
|
T-240D |
VR4 + Replace 6BQ5 Audio Tube With A 7189 Tube |
L702(TOP) VC901 VC902 |
|
TR-123C |
Cut D11 |
|
|
TR-123D |
Cut D12 |
L17 L18 L19 |
|
WV-110 |
VR6 or Cut D15 & D14 |
L13 L12 L11 L10 |
|
WV-23 |
VR6 |
L13 L17 |
|
WV-23A |
VR4 |
L9 L14 |
|
ROYCE RADIOS
Model |
Modulation |
AM Power |
SSB Power |
603 |
VR201 or Cut D202 |
L204 CT 201 |
|
604 |
VR201 or Cut D202 |
L303 VC1 |
|
607 |
VR201 or Cut D202 |
L303 CT301 |
|
608 |
VR201 or Cut D202 |
L303 VC1 |
|
609 |
VR201 or Cut D202 |
L303 VC1 |
|
611 |
VR201 or Cut D202 |
L303 VC1 |
|
613 |
VR201 or Cut D202 |
L303 VC1 |
|
619 |
VR201 or Cut D202 |
L303 VC1 |
|
639 |
VR7 |
L2 L3 |
CT6 |
I-580 |
VR201 or Cut D201 |
T302 L303 CT301 |
|
I-582 |
VR201 or Cut D201 |
T302 L303 CT301 |
|
I-601 (PLL) |
VR201 or Cut D202 |
L204 L203 |
|
I-602 |
Cut D6 |
|
|
I-602A |
VR5 or Cut D5 & D6 |
L11 L15 |
|
I-605A |
VR5 or Cut D5 & D6 |
L11 L15 |
|
I-606 |
VR7 or Cut D16 & D17 |
L21 L16 L15 |
|
I-610 |
Cut D202 |
CT301 |
|
I-611 |
Remove Q205 |
VC1 |
|
I-612 |
VR5 or Cut D7 |
VR8 |
|
I-613 |
Cut D202 |
CT301 |
|
I-617 |
VR401 or Cut D401 |
L310 |
|
I-620 |
VR10 or Cut D43 & D44 |
L13 L12 |
VR13 |
I-621 |
VR3 |
VR4 |
|
I-624 |
VR201 or Cut D202 |
L204 L203 |
|
I-625 |
VR1602 |
T402 |
|
I-630 |
VR10 or Cut D43 & D44 |
L13 L12 |
VR13 |
I-631 |
VR10 |
L2 L4 |
VR12 |
I-632 |
VR7 |
L6 L4 L1 |
VR5 |
I-635 |
VR10 or Cut D43 & D44 |
L13 L12 |
VR13 |
I-639 |
VR7 or Remove Q16 |
L12 T8 T9 |
VR11 |
I-640 |
VR10 or Cut D43 & D44 |
L13 L12 |
VR13 |
I-641 |
VR7 |
L6 L1 |
VR8 |
I-642 |
VR7 or Remove Q16 |
L3 L2 |
VR11 |
I-648 |
VR3 |
VR4 |
|
I-650 |
Cut D301 |
T402 |
|
I-651 |
VR201 (HI PWR) VR203 (LO PWR |
C317 C319 |
|
I-653 |
Cut D301 |
T402 |
|
I-655 |
Cut D301 |
T402 |
|
I-658 |
Cut D301 |
T402 |
|
I-660 |
Cut D301 |
T402 |
|
I-662 |
Cut D301 |
T402 |
|
I-673 |
Cut D301 |
T402 |
|
I-675 |
Cut D301 |
T402 |
|
I-678 |
Cut D301 |
T402 |
|
I-680 |
Cut D301 |
T402 |
|
I-682 |
Cut D301 |
T402 |
|
SEARS RADIOS
Model |
Modulation |
AM Power |
SSB Power |
242-38160700 |
VR201 |
L203 |
|
370-38050700 |
R218 or Cut CR204 |
T302 T303 C436 |
|
562-38200700 |
Cut D11 |
L5 L3 C301 |
|
663-38000900 |
Cut D8 |
L13 L16 |
|
663-38020800 |
VR6 or Cut D9 |
L11 L12 L15 |
|
663-38030050 |
Cut D7 |
L14 L15 L16 |
|
663-38070700 |
VR2 or Cut D14 |
L21 L11 |
|
663-3810500 |
VR5 |
VR10 |
VR6 |
7531 |
Cut D7 |
L7 L8 |
|
934-36710500 |
Cut D7 |
T15 T16 |
|
934-36740500 |
Cut D9 |
T17 T18 |
|
934-36741600 |
Cut D8 |
|
|
934-36770500 |
Cut D25 & D26 |
L14 |
R86 R281 |
934-36771500 |
Cut D25 & D27 |
R405 |
R281 |
934-36772600 |
Cut D25 & D27 |
R405 |
R281 |
934-38060700 |
Cut D7 or Cut D12 |
T14 T15 |
|
934-38061700 |
Cut D7 or Cut D12 |
T14 T15 |
|
934-38062700 |
Cut D7 or Cut D12 |
T14 T15 |
|
934-38080700 |
Cut D7 |
T14 T15 |
|
934-38081700 |
Cut D501 or D502 |
T704 T705 |
|
934-38110700 |
Cut D7 |
T14 T15 |
|
934-38120700 |
Cut D501 or D502 |
T704 T705 |
|
934-38260700 |
D303 |
RT301 |
RT402 |
934-38270700 |
Cut D405 or D406 |
RT602 |
RT701 |
934-38310700 |
D303 |
RT301 |
RT402 |
SILTRONIX RADIOS
Model |
Modulation |
AM Power |
SSB Power |
APACHE (AM-1) |
VR7 or Cut D14 |
L9 L10 L11 |
|
CHEROKEE |
VR206 or Cut D214 & D213 |
VC201 |
VR102 VR205 |
MOHAWK (AM-2) |
VR7 or Cut D14 |
L9 L10 L11 |
|
SSB-23 |
VR204 or Cut D207 & D208 |
VC203 |
VR110 VR206 |
SSB-23A (Albatross) |
VR206 or Cut D214 & D213 |
VC201 |
VR102 VR205 |
SUPERSTAR RADIOS
Model |
Modulation |
AM Power |
SSB Power |
120 |
Remove C99 |
L15 L16 (HI PWR |
|
1700 |
VR14 or Cut R249 |
VR13 |
VR12 |
1700 B |
RV12 |
L15 L16 (HI PWR) |
|
1700 S |
RV12 |
L15 L16 (HI PWR) |
|
2000 |
RV12 |
RV11 |
RV6 RV3 |
2200 |
RV12 |
RV11 |
RV6 RV3 |
360 |
Cut R104 |
VR6 |
|
3600 |
VR14 or Cut R249 |
VR13 |
VR12 |
360FM |
VR14 or Cut R301 |
VR13 |
VR7 |
3900 |
VR14 or Cut R249 |
VR13 |
VR12 |
95 |
Remove C99 |
L15 L16 (HI PWR |
|
Wondering about the "UNCLE MOD"
SUPERSTAR 1700, 3600, 3900
MODULATION: VR14 or cut R249
AM POWER: VR13
SSB POWER: VR12
POWER TWEAK:
1. Remove TR32
2. Replace R174 (10k) with a 1 K
3. Replace R187 (10k) with a 1 K
CLARIFIER:
1. Find the GREEN WIRE located at point 54 and UNSOLDER it.
2. Resolder this GREEN WIRE to POINT 14 (8.7 V) or to TR 41 collector.
3. Find the YELLOW WIRE on the clarifier control and UNSOLDER it. Insulate the cut end. This wire is no longer used.
4. Find D75 (located near POINT 53 and VR15) and lift one end.
5. Find R135 (33k) and lift one end.
6. Double check all work for shorts.
NO EXPLOSION? Then you should be able to track on TX and RX!
CHANNELS:
1. Locate pins #12 and #13 on IC7 (MC14008BCP chip).
2. Using a SPST toggle switch, wire as follows:
Center of toggle switch goes to pin #13
The other goes to pin #12
Your channels should work with your band selector on "D" band.
It should be able to go from 28.300 Mhz. to 28.500 Mhz. ULATOR" ?
?? Here is what another reader wrote:
Super Star 3900 Gold and Cobra 148GTLX Gold
(These 2 radios are the same except for the name)
VR1 - AM/FM S METER ADJUST
VR2 - SSB/CW S METER ADJUST
VR3 - SSB SQUELCH RANGE
VR4 - AM SQUELCH RANGE
VR5 - FM DEVIATION ADJUST
VR7 - CARRIER BALANCE ADJUST
VR8 - RF METER ADJUST
VR10 - FINAL BIAS ADJUST
VR11 - DRIVER BIAS ADJUST
VR12 - ALC ADJUST
VR13 - AM POWER ADJUST
VR14 - AMC
VR16 - CW MON ADJUST
VR21 - Tx FREQUENCY ADJUST
TR32 - IS THE AMC LIMITER
"I don't recommend removing TR32 as it disables VR12 ALC, SSB power will be at full blast.
Instead clip or remove R249. This only disables AMC not ALC.
Tune L40, L43, L44, and L33 for maximum forward swing on wattmeter.
Adjust AM power for no more than 5 watts dead-key - if running a linear amp set at 3 watts dead-key.
Adjust ALC for no more than 20 - 25 watts PEP on SSB.
For Talkback remove D80."
SuperStar 3900
+ 10 KHz Jump Switch
1)Get a SPST switch and mount it in the radio.
2)Find IC 6 & 7 by the PLL chip. You will see J68 and J 69
3)Solder a wire from one side of the switch to J68.
4)Solder a wire from the other side of the switch to J69.
5)That's it .Flip the switch to jump up one channel.
Open Clarifier
1)Find D75 and R135 and cut one end of them.
2)On the back of the clarifier knob follow the green wire to the PC board. Cut this wire from the PC board.
3)Now Solder this wire to a constant 8VDC source, like the collector of TR41.
4)Take the yellow wire and cut it from the knob. Tape this wire it is not needed.
4)This should make the radio TX/RX on the same frequency.
10 Meter Mod
1)Find IC7 ny the PLL chip.
2)Get a SPST switch and mount it in the radio.
3)Solder a wire from one side of the switch to Pin #13.
4)Solder a wire from the other side of the switch to Pin #12.
5)That's it .Put the radio on 'Band D' then flip the switch to jump up to 28.300 to 28.500.
Tweak and peak
Audio Limiter - Cut R249
AM Power - VR13
SSB Power - VR12
SuperStar 121
+ 10 KHz Jump Switch
1)Get a SPST switch and mount it in the radio.
2)Find IC 6 & 7 by the PLL chip. You will see J25 and J27
3)Solder a wire from one side of the switch to J27.
4)Remove the jumper that is J25.
5)Install a 4.7k Ohm resistor in its place.
6)Solder a wire from the other side of the switch to J25.(see Picture)
5)That's it .Flip the switch to jump up one channel.
Channel Expansion
1)You will need 3 SPST switches and mount them in the radio.
2)Find the PLL MC145106.
3)Locate pin # 10 and cut the trace going to this.
4)Switch #3 will be soldered to the cut traces on pin # 10.
4)Solder wires to the other 2 switches as in the picture above.
5)That's it!
ALl the switches down will give the normal channels of the radio.
With the radio in 'HIGH' band and switch 1 UP , 2 DOWN , and 3 DOWN:
You get 27.845 - 27.955 on channels 10 to 19.
With the radio in 'MID' band and switch 1 UP , 2 UP , and 3 DOWN:
You get 27.925 - 28.065 on channels 1 to 12.
With the radio in 'HIGH' band and switch 1 UP , 2 UP , and 3 DOWN:
You get 28.045 - 28.155 on channels 27 to 38.
With the radio in 'HIGH' band and switch 1 DOWN , 2 DOWN , and 3 UP:
You get 26.135 - 26.575 on channels 1 to 40.
TEABERRY RADIOS
Model |
Modulation |
AM Power |
SSB Power |
BIG T |
VR8 |
|
|
FIVE BY FIVE (early) |
RV5 or Cut X10 |
A17 |
|
FIVE BY FIVE (late |
Cut D10 |
L12 L9 L7 |
|
MIGHTY T |
VR5 or Cut D702 or D703 |
VC1 L914 |
|
MODEL T |
VR6 or Cut D505 |
L905 L903 |
|
RACER T (23 CH) |
VR7 |
L906 |
|
RACER T (40 CH) |
VR6 or Cut D505 |
L905 L903 |
|
STALKER 3 |
Cut D13 |
L7 L10 |
|
STALKER I |
VR13 or Cut D52 |
VR17 |
VR16 VR12 |
STALKER II |
VR13 or Cut D28 & D29 |
VR17 |
VR6 VR12 |
STALKER III |
VR8 or Cut D504 |
L901 L903 L905 |
|
STALKER IV |
VR6 or Cut D9 |
L11 L12 L15 |
|
STALKER IX |
Cut R104 |
VR6 |
VR7 |
STALKER IX (export) |
VR5 |
VR11 |
VR7 |
STALKER V |
VR4 or Cut D11 |
L17 L16 L14 |
|
STALKER VIII |
Cut D9 |
L10 L11 L15 |
|
STALKER XII |
VR6 or Cut D16 |
L17 L16 L13 |
|
STALKER XV |
Cut R104 |
VR6 |
VR7 |
STALKER XX |
VR11 or Cut R104 |
VR6 |
VR7 |
STALKER XX (export) |
Cut R104 |
VR6 |
VR7 |
"T" |
RV4 (Change 6BQ5 to 7189) |
CV5 |
|
T BEAR |
VR5 or Cut D14 |
L15 L12 L11 |
|
T CHARLIE (40 CH) |
VR7 or Cut D505 |
L905 |
|
T COMMAND |
VR5 or Cut D14 |
L15 L12 L11 |
|
T CONTROL |
VR5 or Cut D505 |
L914 |
|
T DISPATCH |
VR3 |
L13 L15 |
|
T SCOUT |
Remove C73 or Cut D11 |
L8 L5 |
|
TELE T |
VR7 or Cut D506 & D507 |
L909 |
|
TITAN T |
VR2 or Cut D14 |
L11 L12 L15 |
|
TRAM RADIOS
Model |
Modulation |
AM Power |
SSB Power |
D-12 |
R61 or Cut CD12 |
L6 L3 |
|
D-201 |
R647 |
C711 C712 |
R719 |
D-300 |
Cut R104 |
VR6 |
VR7 |
D-42 |
R80 or Cut CD11 |
L5 |
|
D-64 |
R217 |
L704 L706 L709 |
R721 |
D-80 |
Cut R104 |
VR6 |
VR7 |
DIAMOND 40 |
Change R114 to a 10k |
L2 L5 |
|
DIAMOND 60 |
R98 |
L2 L5 |
R112 |
TITAN II |
Cut X9 |
A18 A19 A24 |
R112 |
TITAN IV |
R520 |
|
C718 C719 |
XL |
Cut CD12 |
L5 L3 |
|
XL-5 |
R616 or Remove C611 or Cut CR603 |
L106 R130 |
|
UNIDEN RADIOS
Model |
Modulation |
AM Power |
SSB Power |
DWIGHT D (1003002) |
VR6 or Cut D16 |
L13 L12 L11 |
T9 T10 T11 |
GRANT (1005002) |
Cut R131 |
VR10 |
VR11 |
HR-2510 |
VR114 |
VR103 |
VR104 |
MADISON |
Cut R131 |
VR10 |
VR11 |
PC-122 |
VR5 |
VR10 |
VR11 |
PC-22 |
VR3 or Cut R54 |
L12 L14 |
|
PC-244 |
VR5 or Remove TR29 |
VR10 |
VR6 |
PC-3 |
Cut D13 |
L7 L10 |
|
PC-33 |
Cut D13 |
L15 L12 L11 |
|
PC-33X |
Cut D14 |
L6 L5 L4 |
|
PC-43 |
Cut D12 |
L8 L9 L12 |
|
PC-55 |
Cut D13 |
L15 L12 L11 |
|
PC-55X |
Cut D14 |
L6 L5 L4 |
|
PC-66 |
VR5 or Cut D9 |
L13 L10 L9 L8 |
|
PC-66A |
VR5 or Cut D9 |
L13 L10 L9 L8 |
|
PC-77 |
Cut D15 |
L17 L16 L13 |
|
PC-9 (emergency radio) |
Cut D11 |
|
|
PRO-500D |
Cut D14 |
L6 L5 |
|
PRO-510e |
Cut D14 |
L6 L5 L4 |
|
PRO-510XL |
Cut D14 |
L6 L5 |
|
PRO-520e |
Cut D14 |
L6 L5 L4 |
|
PRO-520XL |
Cut D14 |
L6 L5 |
|
PRO-530e |
Cut D14 |
L11 |
|
PRO-540e |
Cut D22 |
L12 L10 |
|
PRO-640e |
VR5 or Remove TR29 |
VR10 |
VR6 |
PRO-710e |
Cut D11 |
L8 L7 L6 |
|
PRO-810e |
VR5 or Remove TR29 |
VR10 |
VR6 |
PTC-104 |
Cut D18 |
L11 L9 L8 |
|
WASHINGTON (1002002) |
Cut R104 |
VR6 |
VR7 |
ZACHARY T (1002002) |
VR6 or Cut D16 |
L13 L12 L11 |
|
GRANT-XL (8719 PLL)
POWER TWEAKS:
1. Remove TR24
2. Replace R126 (10k) with a 2.2k.
3. Replace R124 (10k) with a 4.7k
4. Re-tune coils L37 and L38 for maximum forward swing on AM mode.
MODULATION: Remove R131
AM POWER: VR10
SSB POWER: VR11
CLARIFIER:
1. Find D52, R44 and R174 and remove them.
2. Solder a jumper from where you removed R174
3. Follow the WHITE WIRE from the clarifier control to where it attatches to the PC board and UNSOLDER it.
4. Resolder this WHITE WIRE to the PC board ground.
5. Follow the ORANGE WIRE from the clarifier control to where it attatches to the PC board and UNSOLDER it.
6. Resolder this ORANGE WIRE to pin 3 of MB3756 Regulator.
NOTE: Some radios have different colored wires on the clarifier control. They are:
YELLOW instead of ORANGE
RED instead of BLUE
If all goes well, you should slide about 4 down and 1 up.
WANT MORE SLIDE??
1. Remove D51 and put in a jumper.
2. Install a "super-diode" in place of the stock varactor D35.
3. Add a 4.7uh to 10uh choke to the banded-end of the stock varactor.
10 KC JUMP:
Basically, you need to either add voltage or ground pin #16 on the MB8719 PLL.
Here's how to do a 10 Kc UP jump only:
1. Cut trace to pin #16 on the PLL.
2. Install a 4.7K resistor across the cut you made.
3. Using a SPST switch, one side of the switch goes to the cut-side of pin #16.
4. The other side of the switch goes to pin #9 of the PLL. (8 volts)
When you apply the 8 volts, this pulls pin #16 high causing the 10 kc jump up.
Note that this will not work on all channels.
For a 10 Kc DOWN jump only:
1. Ground pin #16 using a SPST switch. No cut to the PLL is necessary.
Pulling pin 16 low will cause it to jump down 10Kc.
This too will not work on all channels.
For a 10 Kc UP and DOWN switch:
Perform the trace cut/resistor addition described above.
Use a SPDT switch and wire as follows:
1. Center of switch goes to pin #9 of PLL (8 volts)
2. One side of switch goes to the cut side of pin #16.
3. The last side goes to pin #18 of PLL (or ground)
This will allow you to jump 10Kc up or down.
Uniden WASHINGTON (858 pll)
MODULATION: VR7 or cut D23
AM POWER: VR8
SSB POWER: CT7
RX COILS: L3 thru L8
TX COILS: L32,L30
SAMS PHOTOS: #126,127,128,170,171,176,179,200,207
POWER TWEAKS:
(Mike circuit changes:)
1. UNSOLDER banded end of diode D21 and lift up.
2. UNSOLDER banded end of diode D22 and lift up.
3. SOLDER a 4.7 k resistor across where D21 and D22 was unsoldered.
4. Replace R78 (27k) with a 56k.
5. Replace R84 (4.7k) with a 2.2k.
(Transmit circuit changes:)
1. Replace C174 (56pF NPO) with a 82pF NPO ceramic capacitor.
2. Replace C173 (180pF NPO) with a 220pF NPO ceramic capacitor.
3. Re-tune coils L32,L30,L29,L28 and VR8 for maximum forward AM power.
CLARIFIER:
1. UNSOLDER and remove D30.
2. UNSOLDER and remove D29.
3. Add a jumper in the holes from where you removed D29.
4. Cut the end of R119 that is closest to D29.
5. Add a jumper wire from R119 (the cut end) to the banded end of D44.
6. Follow the PURPLE/WHITE wire form the clarifier control to the PC board and UNSOLDER IT.
7. Resolder this wire to the PC board ground.
8. If all went well, you should slide 1 kc up and 3 kc down.
KNOWN BUGS:
The AM regulator 2SC1419 is WEAK. UNSOLDER it and toss it in the trash.
Replace it with a GE-66, ECG-152 or a NTE-152.
Relay buzzes on SSB, no am transmit, lights go dim, or the fuze pops sometimes?
Replace C179 ( a 2.2uF 25v tantalum cap located near finals) with a standard 2.2uF electrolytic capacitor.
PAY ATTENTION to the "+" and "-"!!!
Uniden PRO-510XL,PRO-500D,PRO-520XL
POWER TWEAKS:
1. Locate the 2.7 ohm resistor in front of the final bias resistor(15 Ohm w/RF bead) and change it to a .47 Ohm. (DO NOT change the 15 Ohm resistor!!)
2. Re-tune L9,L6,L5,L4 for maximum forward power.
MODULATION: Cut D14
AM POWER: L6,L5
VR1: Squelch
VR2: TX meter
VR3: RX meter
VR4: RX IF gain
Uniden PC-66,PC-66A
MODULATION: VR5 or cut D9
AM POWER: L13,L10,L9,L8
POWER TWEAK: (ALSO WORKS ON: Uniden AR44,AX44,AR711)
1. Replace R76 (3.3k) with a 1k.
2. Replace R43 (10 Ohm) with a 2.7 Ohm.
3. Replace R108 (1 Ohm) with a .47 Ohm.
4. Re-tune coils L13,L10,L9,L8 for max forward power.
|