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TUCoPS :: Radio :: pll3.txt

The CB PLL list 3/3

PLL List 3/3

The CB's are listed by PLL model. Find the PLL and then find the mod :)

Models include:- Automatic CBR2175, Bowman CBR9940, Panasonic
CB-B4737EU/B474EU, Pearce-Simpson Leopard B, RCA 14T405/14T410, Chrysler
4048076/8077, Pace 8041/8046/8047/CB185/8092.
This chip uses simple 8 bit binary programming. The Pace 8092 uses  a very
complex scheme to produce a 455Khz SSB circuit.
Modification by changing the 12.250 Mhz tripler crystal.

Models include:- Cobra 18+/21+/25+/29+/33+
This is one of the newer ROM type chips. It has Ch.9/19 pins and an internal
LED display driver and ONLY 2 programming pins (UP & DOWN).
No chance of modification.

Models include:- Cobra 31+, K40-7, Realistic TRC 435, Uniden PRO
In this chip the VCO shifts directly from 16 Mhz on RX to 27 Mhz on TX by
switching in different VCO coil inductances. This is a very poor  design.
No modifications as far as I know (why would you want to modify such a bad

Browning Baron/Sabre/SS-2, Cobra 132XLR/135XLR/32XLR/86XLR/87XLR, Tram
D62/D12/D42, Sears 562.3802/562.382, Kraco KCB4095, Sharp
CB750A/CB800A/CB2260/CB2460, Royce - some models with the 'sardine' can PLL.
This chip is part of a three chip combination, the TC5081 (Phase comparator)
and the TC5082 (Referance Oscillator & Divider)
Can be modified slightly by changing the programming to the pins. A better
mod is to change the loop mixing crystal.

Models include:- Midland 76-860/77-861B, Sharp CB2170/CB4370/CB4470/CB4670
This chip uses 6 bit binary programming with pin 10 controlling the preset
Ncodes for TX and RX.
Can be modified by switching in new loop mixing crystals. 

Models include:- Medallion 63-540, Motorola CT950AX, TRS Challenger
730/1200, Wards GEN-680A/716A
This chip uses simple 6 bit binary programming and a preset divider.
It can be easily modified by injecting new mixing signals from a external

Models include:- Motorola System 500 CM550/CB550/CB555
This chip also uses 6 bit binary programming. It is very similar to the 
TC9106/9119 PLL except they use BCD/ROM programming to make conversions harder.
Can be modified by switching in new loop mixing crystals. 

Models include:-U.S.(TC9106)Cobra 18LTD/20LTD/21GTL/ 
25GTL/21LTD/25LTD, Craig L104, K40-8, Midland 200M/77-824B, President
P220/Andrew J/AR-7/AR44/AX44/AR711/AX711/P200/P210, Uniden
PC66/PC33/PC33X/PC55/PC55X/AX-43/PC-3/Pro-540e, GE 3-5804B
/5815A/3-5805/3-5804F, Realistic TRC425/TRC426/TRC427/ TRC473/TRC474, Teaberry
Stalker III, NDI PC101/PC102 
U.K.(TC9119)Audioline 340/341/345, Tandy TRC2000/ TRC2001/TRC2002,
Uniace 100/200
These chips use a double ROM set to deny illegal modifications. The only
difference between the US version and the UK version are the ROM codes.
No Modifications possible.

Models include:- Cobra 19GTL/19LTD, President VEEP/AR-14/ AX-14, SBE
LCMS-4/LCM5, Sears 663.38052/663.38009, Teaberry Stalker IV/VIII, Uniden PC-14,
Craig L103, GE 3-5804G/3-5816A, Realistic TRC216/TRC210/TRC411/TRC416/TRC429
This chip is similar to the TC9106/TC9119 PLL's.
Forget about modifications.

Models include:- Cobra 138XLR/139XLR/21XLR/29XLR/89XLR/21X/ 77X, Palomar
SSB500(early), President Adams/Grant(old)/Madison(old) /Washinton(old)/Dwight
D(old)/honist Abe/Teddy R/Zachary T(old)/John Q, Realistic
TRC449/TRC457/TRC458/TRC452, Roybn SB510D /520D/AM-500D, Stag 357, Teaberry
Stalker 101/102/202/WKS1001, Courier Centurion PLL/Centurion 40D/ Gladiator PLL/
Spartan PLL/Rebel PLL/Rebel 40A, Fannon Fanfare 350F/100F1, Midland
79-893/13-883B/77-883,Teaberry T Bear/T command/Titan T/ T Dispatch,  
This is a great PLL. It has a possible 399 channels via 10 bit BCD
programming. The SSB models are very broadbanded enabling 200 channels.
Modification can be done by changing the loop mixing crystals or a better
method is to change the BCD programming.

Models include:- SSBCDE Mk26, Pearce-Simpson Super Bengal MkII,
Contact PSC301, Wagner 510
BCD/ROM AMBowman CBM-6100, Colt 350, Convoy CON-400, SBE49CB, JC
Penney 981-6221/6255/981-6203/6237, Sears
934.380817/934.381107/934.381207/981-6203/6237, Realistic TRC468/
TRC440/TRC466/TRC467/TRC461, TRS 600 
Binary AMPanasonic RJ-3250/3450/3600/3660, Realistic
TRC424/TRC431/TRC456, Superscope Aircommand CB140/ CB340/  CB640
This chip is very similar to the uPD858, but this one gives you the choice
of either 8 bit binary or 6 bit BCD/ROM programming.
In the BCD/ROM models disconnecting pin 24,grounding pin 14 and switching
pins 7 & 8 converts them to binary programming.

Models include:- Audiovox MDU6000, Tristar 727,TRS Challenger 850/1400
This chip uses 7 bit BCD/ROM programming using several sets of
Ncodes,depending on mode and IF choice.
Can be modified by injecting new mixing frequencies with a external
oscillator/crystal switch.

Models include:- Audiovox MCB5000, JIL 615CB
This chip allows either 6 bit BCD/ROM or 8 bit binary programming. Pin 3
controls this operation.
Can be modified by changing to binary programming and then change the
programming on the pins.

Models include:- uPD2810Cobra 66GTL, Craig L150, President James
K/AR-11/Old Hickory, Midland 77-856, Realistic
uPD2816Cobra 29GTL/29LTD/63GTL/87GTL/89GTL/1000GTL, President Thomas
J /  JFK/Dwight D(new)/Zachary T(new), Superstar 120, SBE LCB-8, Teaberry
Stalker XII/ Stalker V, Uniden PTC104 Trucker. 

uPD2816 SSB Midland 6001(79-006)/ 7001(79-007)
These chips use 6 bit BCD/ROM programming.
The SSB models can be modified by pulling pin 9 HIGH. This will give 40
channels exactly 455Khz below the standard 'FCC' channels (ie. 26.510 - 26.950).
The others can be modified by injecting new mixing frequencies  with an external
oscillator/crystal switch.

Models include:- Cobra 146GTL, Midland 6001/7000/79-260, Pearce- Simpson
Super Cheetah, President P300/AR-144/AX-144, Realistic TRC451/TRC453/TRC465,
Sears 663.3810, Uniden PC244/PC122/Pro-810e/Pro-640e, Craig L132/L232, Wards
The only ncodes available are 91-135.
Can be modified by injecting new mixing frequencies with a external
oscillator/crystal switch.

(C) Lou Franklin; CBC international, PoBox31500, Phoenix AZ 85046.
Page last updated March 10, 1996 , 08:45EST

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