PLL List 3/3 The CB's are listed by PLL model. Find the PLL and then find the mod :) SM5118 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. SM5123A/SM5125B 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. SM5124A Models include:- Cobra 31+, K40-7, Realistic TRC 435, Uniden PRO 510e/520e/510XL/520XL/500D/530e/710e. 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 radio?) TC5080P 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. TC9102 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. TC9103 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 oscillator. TC9105 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. TC9106/TC9119 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. TC9109/MB8733 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. uPD858 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. uPD861 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. uPD2810 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. uPD2812 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. uPD2814/uPD2816/HD42853/KM5624 Models include:- uPD2810Cobra 66GTL, Craig L150, President James K/AR-11/Old Hickory, Midland 77-856, Realistic TRC469/TRC420/TRC420A/TRC421/TRC422/TRC432/TRC441 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. uPD2824 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 GEN-719A 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 Any problems or comments mail me at haggis@superior.net