TALK POWER...
Most radios develop more peak power with a whistle than with normal voice.  You shouldn't use a whistle when tuning for maximum forward (PEAK) power.  Instead use a constant tone no higher than 300 to 400 Hz (Normal Voice Range).  This tone can either be generated by most tone generators, or by using a steady ah-h-h-h-h sound as you speak into the mic.  Don't whistle into the mice when tuning a radio, unless the radio operator has a very high pitched voice.

The following modifications allow you to obtain maximum peak output power by increasing normal voice sensitivity.  Improvement will vary anywhere from 25% to 50%, depending the radio's circuitry.  These modifications should be performed after doing a standard radio tune-up. The nominal value of most parts to change is shown, however these may vary from radio to radio. When replacing any parts be sure to change or use only those specified. No guarantee is expressed or implied. Your mileage may vary. If you break it, YOU broke it.
 


MODELS: Cobra 21 GTL, 21 LTD, 25GTL, 25LTD, 25LTD Classic
1. Change R76 (3.3K) to a 1 K (Located near mike socket).
2. Change R43 (10 Ohm) to a 2.7 Ohm.
3. Change R108 (1 Ohm) to a.47 Ohm.
4. Re-Tune L10, L9, L8 for maximum Forward Power.
MODEL: Cobra 25 LTD-WX Classic
1. Change R76 (2.2K) to a 1K. (Located near mic Socket)
2. Change R43 (10 Ohm) to a 2.7 Ohm.
3. Change R108 (1 Ohm) to a .47 Ohm.
3. Re-tune L10, L9, L8 for maximum Forward Power
Model: Cobra 29LTD-WX Classic
1. Change R58 (8 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

MODEL: Cobra 77X
1. Remove TR219 & C270 (1 uf).
2. Change R269 (560 Ohm) to a 270 Ohm.
3. Change C258 (220 pf NPO) to a 270 pf NPO.
4. Change R264 (1 Ohm) to a.47 Ohm.
5. Re-Tune L211, L212, L214 for maximum Forward Power.

MODEL: Cobra 78X
1. Remove TR8 & C49. (1 uf)
2. Change R31 (560 Ohm) to a 270 Ohm. (Located next to TR8 in Mic circuit)
3. Change C83(220pf-NPO)to a 270pf-NPO. (Located between Driver & Final)
4. Change R91 (1 Ohm) to a.47 Ohm.
5. Re-Tune L11, L12, L15 for maximum Forward Power.

MODELS: Cobra 18RV, Cobra 23 Plus 
1. Change R505 (3.3K) to a 1 K
2. Change R310 (2.7 Ohm) to a.47 Ohm
3. Re-Tune L305, L306 for maximum Forward Power

MODEL: Cobra 19GTL
1. Remove TR8 & Change R31 (5.6K) to a 1K
2. Change C134 (330 pf NPO) to a 390 pf NPO
3. Change R91(1 Ohm) to a .47 Ohm
4. Re-Tune L15, L16, L17 for maximum Forward Power
MODEL: Cobra 19 Plus (model with plastic case) 
1. Change R48 (3.3K) in audio circuit to a 1K.
2. Change R94 2.2 Ohm in final circuit to a .47 Ohm.
3. Re-Tune L11, L12, L13 for Maximum Forward Power.

MODEL: Cobra 21 XLR
1. Change R110 (2.2 Meg) to a 1 Meg
2. Change R35 (10 Ohm) to a 2.7 Ohm
3. Change R33 (4.7 Ohm) to a 1 Ohm
4. Re-Tune L15, L12, L11 for maximum Forward Power.

MODEL: Cobra 25 LTD Classic Gold
1. Change R76 (3.3K) to a 1K. (Located near mic socket)
2. Change R43 (10 Ohm) to a 2.7 Ohm.
3. Change R108 (1 Ohm) to a .47 Ohm.
4. Re-tune L10, L9, L8 for maximum Forward Power.

MODELS: Cobra 29GTL, 29LTD, 29LTD CLASSIC, 29LTD CLASSIC GOLD
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

MODELS: Cobra 29XLR, 89XLR
1. Change R87 (2.2 Meg) to a 1 Meg
2. Change R49 (47 Ohm) to a 27 Ohm
3. Change R42 (4.7 Ohm) to a 1 Ohm
4. Change R43 (2.2 Ohm) to a.47 Ohm
5. Re-Tune L15, L12, L11 for maximum Forward Power.

MODELS: Cobra 87GTL, 89GTL, 1000GTL
1. Remove C128 (.47uf) & TR16
2. Change R132 (1 K) to a 470 Ohm
3. Change C61 (220pf-NPO) to a 270pf-NPO
4. Change R50 (3.9 Ohm) to a 1 Ohm
5. Change R47 (1 Ohm) to a .47 Ohm
6. Re-Tune L17, L13, L12, L11 for maximum Forward Power.

MODEL: Cobra 90LTD
1. Clip D203
2. Change R320 (5.6 Ohm) to a 1 Ohm
3. Change C335 (100pf NPO) to a 150 pf NPO
4. Re-Tune L304, L305, L306 for Maximum Forward Power

MODEL: Cobra 139XLR
Changes to make in Mike circuit (Located near IC3) 
1. Unsolder cathode (Banded End) of D21 & D22 and lift out
2. Add a 4.7K Resistor across where D21 & D22 was unsoldered
3. Change R78 (27K) to a 56K
4. Change R84 (4.7K) to a 2.2K
Changes to make in Transmit Circuit
5. Change C174 (56pf NPO) to a 100pf NPO
6. Change C173 (180pf) to a 220pf
7. Re-tune L32, L30, L29, L28 for Maximum Forward Power on AM

MODELS: Cobra 140GTL, Cobra 142GTL
1. Remove TR32
2. Change R99 (10K) to a 2.2k
3. Change R94 (10K) to a 2.2K

MODELS: Cobra 148GTL, Cobra 2000GTL
1. Remove TR24
2. Change R126 (10K) to a 2.2k
3. Change R124 (10K) to a 4.7K
4. Re-Tune L37, L38 for maximum Forward Power on AM.

MODEL: Craig L-104
1. Change R76 (3.3K) to a 1 K
2. Change R43 (10 Ohm) to a 2.7 Ohm
3. Change R108 (1 Ohm) to a .47 Ohm
4. Re-Tune L13, L10, L9, L8 for maximum Forward Power.

MODELS: Excalibur SSB(SRT-3600-10 Board), Excalibur SSB (EPT360010Z Board)
1. Remove TR32
2. Change R174 (10K) to a 2.2k
3. Change R187 (10K) to a 2.2K

MODELS: Galaxy Saturn(EPT36001 OA & EPT36001 1B Board), Super Galaxy, Galaxy DX 88HL
Galaxy Pluto, Galaxy II, Galaxy 33HML, Galaxy 44V, Grant-DX, Cobra 148GTL-DX.
1. Remove TR32
2. Change R174 (10K) to a 2.2k
3. Change R187 (10K) to a 2.2K

MODEL: Galaxy Mars
1. Remove or cut R104 & Dl1 from circuit. (Located in right front corner)
2. Change R109 (10K) to a 2.2K. (Located next to R104)
3. Re-tune L14, L12, Lll, L10 for Maximum Forward Power.
4. Check transmit on FM. If modulation is not clear, adjust VR5
   counter-clockwise for good clarity on FM transmit.

MODEL: General Electric 3-5804B
1. Remove 0503 & remove D504 or R519
2. Change R703 (2.2K) to a 470 Ohm
3. Change R906 (4.7 Ohm) to a 1 Ohm
4. Change C910 (82pf NPO) to a 120 pf NPO
5. Change R909 (1.5 Ohm) to a.47 Ohm
6. Re-Tune L903, L905, L906 for Maximum Forward Power

MODEL: General Electric 3-5804D, 3-5813B 
1. Remove Q14 & C96
2. Change R59 (3.3K) to a 470 Ohm
3. Change C42 (120pf NPO) to a 150 pf NPO
4. Re-Tune L7, L11, L12 for Maximum Forward Power

MODEL: J.C. Penny 6237 (981-6237)
1. Remove R40 & Q10
2. Change R43 (4.7K) to a 1 K
3. Change R70 (10 Ohm) to a 4.7 Ohm
4. Change R62 (2.2 Ohm) to a .47 Ohm
5. Re-Tune T14, T15, L4 for Maximum Forward Power

MODEL: K40-7
1. Change Resistor (2.7 Ohm) located in front of final bias Resistor
(15 Ohm w/ RF Bead)to a .47 Ohm. (Do not change 15 Ohm Resistor)
2. Re-Tune L9, L6, L5, L4 for maximum Forward Power

MODELS: Kraco KCB-2310A, KCB-2320A, KCB-2320B, KCB-2330B
1. Remove C209
2. Remove Q121
3. Change R168 (3.3K) to a 470 Ohm
4. Re-Tune L109, L110 for maximum Forward Power

MODELS: Midland 13-830, 13-888B, 13-955
1. Remove C209 & Q121
2. Change R168 (3.3K) to 470 Ohm
3. Re-Tune L109, L110 for maximum Forward Power

MODEL: Midland 200M (77-200)
1. Remove TR17 & C70.
2. Change R64 (1K) to a 470 Ohm. (Located in audio circuit.)
3. Change C105 (220 pf NPO) to a 270pf NPO. (Located in final circuit.)
4. Change R112 (1 Ohm) to a .47 Ohm. (Located in final circuit.)
5. Re-Tune L14, L15, L16 for Maximum Forward Power

MODEL: Midland 76-300 (AM Base)
1. Clip D203
2. Change R320 (5.6 Ohm) to a 1 Ohm
3. Change C335 (100pf NPO) to a 150 pf NPO
4. Re-Tune L304, L305, L306 for Maximum Forward Power

MODEL: Midland 77-099
1. Change R94 (2.7 Ohm) to a .47 Ohm
2. Re-Tune L10, L11, L13 for maximum Forward Power

MODEL: Midland 77-116 
1. Change R91 (3.3 Ohm) to a .47 Ohm
2. Re-Tune L8, L9, L10 for maximum Forward Power

MODEL: Midland 77-118
1. Change R505 (3.3K) to a 1 K
2. Change R310 (2.7 Ohm) to a.47 Ohm
3. Re-Tune L305, L306 for maximum Forward Power

MODEL: Midland 77-250 (Power Max)
1. Change R202 (1 K) to a 470 Ohm
2. Change C320 (62 pf-NPO) to a 120 pf-NPO
3. Change R316 (3.3 Ohm) to a.47 Ohm
4. Re-Tune L304, L305, L307 for maximum Forward Power (HOT!!!)

MODELS: Pearce Simpson Tiger 40A, Mark II
1. Remove C209 & 0121
2. Change R168 (3.3K) to 470 Ohm
3. Re-Tune L109, L110 for maximum Forward Power

MODELS: President Andrew J, P-220
1. Change R76 (3.3K) to a 1 K
2. Change R43 (10 Ohm) to a 2.7 Ohm
3. Change R108 (1 Ohm) to a .47 Ohm
4. Re-Tune L13, L10, L9, L8 for maximum Forward Power.

MODEL: President AR-7
1. Change R60 (12 Ohm) to a 6.8 Ohm
2. Change R62 (1 Ohm) to a .47 Ohm
3. Re-Tune L12, L16 for maximum Forward Power

MODEL: President Convoy II
1. Change Resistor in front of TX Driver (10 Ohm) to a 4.7 Ohm
2. Change Resistor next to L14 (1 Ohm) to a .47 Ohm
3. Re-Tune L11, L9, L8 for maximum Forward Power

MODELS: President Grant (8719 PLL), Madison (8719 PLL)
1. Remove TR24
2. Change R126 (10K) to a 2.2k
3. Change R124 (10K) to a 4.7K
4. Re-Tune L37, L38 for maximum Forward Power on AM

MODEL: President Grant (858 PLL) 
Changes to make in mic circuit (Located near IC3) 
1. Unsolder cathode (Banded End) of D21 & D22 and lift out
2. Add a 4.7K Resistor across where D21 & D22 was unsoldered
3. Change R78 (15K) to a 33K
4. Change R84 (4.7K) to a 2.2K
Changes to make in Transmit Circuit
5. Change C174 (56pf NPO) to a 82pf NPO
6. Change C173 (180pf NPO) to a 220pf NPO
7. Re-tune L32, L30, L29, L28 for Maximum Forward Power on AM

MODELS: President Honest Abe, Teddy R, Dwight D (858), Zachary T (858)
1. Change R87 (2.2 Meg) to a 1 Meg
2. Change R49 (47 Ohm) to a 27 Ohm
3. Change R42 (4.7 Ohm) to a 1 Ohm
4. Change R43 (2.2 Ohm) to a .47 Ohm
5. Re-Tune L15, L12, L11 for maximum Forward Power.

MODEL: President John Q 
1. Change R110 (2.2 Meg) to a 1 Meg
2. Add a 2.2K 1/4 Watt resistor from the base of TR23 to ground
3. Change R120 (15K) to a 27K 
4. Change R35 (10 Ohm) to a 2.7 Ohm
5. Change R33 (4.7 Ohm) to a 1 Ohm
6. Re-Tune L15, L12, L11 for maximum Forward Power.

MODEL: President Madison (858 PLL)
Changes to make in mic circuit (Located near IC3)
1. Unsolder cathode (Banded End) of D21 & D22 and lift out
2. Add a 4.7K Resistor across where D21 & D22 was unsoldered
3. Change R78 (15K) to a 33K
4. Change R84 (4.7K) to a 2.2K
Changes to make in Transmit Circuit
5. Change C174 (56pf NPO) to a 82pf NPO
6. Re-tune L32, L30, L29,1 P8, VR8 for Maximum Forward Power on AM

MODELS: President McKinley, Washington (8719 PLL), P-400
1. Remove TR32
2. Change R99 (10K) to a 2.2k & Change R94 (10K) to a 2.2K
3. Re-Tune L36, L37 for maximum Forward Power on AM.

MODELS: President P200, P210
1. Change Resistor (2.7 Ohm) located in front of final bias Resistor
(15 Ohm W/ RF Bead) to a .47 Ohm. (Do not change 15 Ohm Resistor)
2. Re-Tune L9, L6, L5, L4 for maximum Forward Power

MODEL: President Thomas J 
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

MODEL: President Washington (858 PLL)
Changes to make in mic circuit (Located near IC3)
1. Unsolder cathode (Banded End) of D21 & D22 and lift out
2. Add a 4.7K Resistor across where D21 & D22 was unsoldered
3. Change R78 (27K) to a 56K
4. Change R84 (4.7K) to a 2.2K
Changes to make in Transmit Circuit
5. Change C174 (56pf NPO) to a 82pf NPO
6. Change C173 (180pf NPO) to a 220pf NPO
7. Re-tune L32, L30, L29, L28, VR8 for Maximum Forward Power on AM

MODEL: President Veep
1. Remove TR8 & Change R31 (5.6K) to a 1 K
2. Change C134 (330 pf NPO) to a 390 pf NPO
3. Change R91 1 Ohm) to a .47 Ohm
4. Re-Tune L15, L16, L17 for maximum Forward Power

MODELS: Realistic TRC-414
1. Change R109 (7.6 Ohm) to a 2 Ohm
2. Re-Tune L3, L6, L7 for maximum Forward Power

MODEL: Realistic TRC-420
1. Change R203 (6.8 Ohm) to a 1 Ohm
2. Re-Tune L102, L104, L106, L107 for maximum Forward Power

MODELS: Realistic TRC-421, TRC-422
1. Remove Q11 & Change R83 (2.2K) to a 470 Ohm
2. Change R107 (6.8 Ohm) to a 1 Ohm
3. Coils are sealed , no retuning should be attempted.

MODELS: Realistic TRC-421A, TRC-422A
1. Change R109 (8.1 Ohm) to a 2 Ohm
2. Re-Tune L3, L6 for maximum Forward Power

MODEL: Realistic TRC-424 
1. Remove Q506
2. Change R710 (2.7K) to a 470 Ohm
3. Change C920 (82pf) to a 120pf
4. Change R912 (1.5 Ohm) to a.47 Ohm
5. Change R921 (1.5 Ohm) to a .47 Ohm
6. Re-Tune L904, L906, L909, L910 for maximum Forward Power

MODEL: Realistic TRC-425
1. Remove Q509
2. Change R702 (1 k) to a 470 Ohm
3. Change R942 (3.3 Ohm) to a .47 Ohm
4. Re-Tune L901, L902, L905 for maximum Forward Power

MODEL: Realistic TRC-426
1. Change R905 (4.7 Ohm) to a 2.7 Ohm
2. Change R908 (2.2 Ohm) to a .47 Ohm
3. Re-Tune L901, L903, L905 for maximum Forward Power

MODEL: Realistic TRC-427
1. Change R44 (6.8 Ohm) to a 3.9 Ohm
2. Change R61 (1 Ohm) to a .47 Ohm
3. Re-Tune L16, L15, L12 for maximum Forward Power

MODEL: Realistic TRC-431
1. Change R922 (1.5 Ohm) to a.47 Ohm
2. Re-Tune L905, L907, L910 for maximum Forward Power

MODEL: Realistic TRC-433
1. Change R102 (7.6 Ohm) to a 2 Ohm
2. Re-Tune L4, L3, L2 for maximum Forward Power

MODEL: Realistic TRC-452
1. Change R264 (1 Ohm) to a .47 Ohm
2. Re-Tune L21 1, L212, L214 for maximum Forward Power

MODEL: Realistic TRC-465
1. Remove Q27 (Located Under Mike Socket).
2. Change 10K resistor between mike white audio lead
   and collector of Q27 to a 1K.
3. Change 10K resistor between base of Q26 and disc Capacitor
   from collector of Q27 to a 1K.
4. Re-Tune for Maximum Forward Power.

MODEL: Realistic TRC-467
1. Remove Q107
2. Change R140 (1 K) to a 470 Ohm
3. Change C168 (56pf NPO) to a 120pf NPO
4. Change R179 (5.6 Ohm) to a 1 Ohm
5. Re-Tune L104, L106, L107, L108 for Maximum Forward Power

MODEL: Realistic TRC-469 
1. Remove TR20
2. Change R110 (3.3K) to a 1 K
3. Change R69 (47 Ohm) to a 27 Ohm
4. Change R64 (8.2 Ohm) to a 3.9 Ohm
5. Change R63 (1 Ohm) to a .47 Ohm
6. Re-Tune L11, L10, L9 for maximum Forward Power

MODEL: Robyn AM-500D
1. Change R87 (2.2 Meg) to a 1 Meg
2. Change R49 (47 Ohm) to a 27 Ohm
3. Change R42 (4.7 Ohm) to a 1 Ohm
4. Change R43 (2.2 Ohm) to a.47 Ohm
5. Re-Tune L15, L12, L11 for maximum Forward Power.

MODEL: Robyn SB-510D
Changes to make in mic circuit (Located near IC3)
1. Unsolder cathode (Banded End) of D21 & D22 and lift out
2. Add a 4.7K Resistor across where D21 & D22 was unsoldered
3. Change R78 (15K) to a 33K
4. Change R84 (4.7K) to a 2.2K
Changes to make in Transmit Circuit
5. Change C174 (47pf NPO) to a 82pf NPO
6. Change C173 (180pf NPO) to a 220pf NPO
7. Re-tune L32, L30, L29, L28, VR8 for Maximum Forward Power on AM

MODEL: Robyn SB-520D
Changes to make in Mike circuit (Located near IC3)
1. Unsolder cathode (Banded End) of D21 & D22 and lift out
2. Add a 4.7K Resistor across where D21 & D22 was unsoldered
3. Change R78 (27K) to a 56K
4. Change R84 (4.7K) to a 2.2K
Changes to make in Transmit Circuit
5. Change C174 (56pf NPO) to a 82pf NPO
6. Change C173 (180pf NPO) to a 220pf (NPO)
7. Re-tune L32, L30, L29, L28, VR8 for Maximum Forward Power on AM

MODEL: Sears 663-38000900
1. Remove TR17 & Cut D8.
2. Change R41 (4.7K) to a 1K. (Located in audio circuit)
3. Change R62 (1 Ohm) to a .47 Ohm.
4. Re-Tune L16, L17, L18 for Maximum Forward Power.

MODEL: Sears 663-38090050
1. Change R113 (1 Ohm) to a .47 Ohm.
2. Re-Tune L14, L15, L16 for Maximum Forward Power

MODEL: Sears 934-38062700 
1. Remove Q10 & Q9.
2. Change R43 (4.7K) to a 1K. (Located in audio circuit)
3. Change R70 (10 Ohm) to a 4.7 Ohm. (Driver circuit)
4. Change R62 (2.2 Ohm) to a .47 Ohm. (Final circuit.)
5. Re-Tune T13, T14, T15 for Maximum Forward Power.

MODEL: Superstar 121
1. Change R142 (10K) to a 2.2K
2. Change R174 (10K) to a 2.2K.
3. Check transmit on FM. If modulation is not clear, adjust VR5
   counter-clockwise for good clarity on FM transmit.

MODELS: Superstar 1700, 3600, 3900
1. Remove TR32
2. Change R174 (10K) to a 1k
3. Change R187 (10K) to a 1K

MODEL: Superstar LBJ
1. Remove or cut R104 & Dll from circuit. (Located in right front corner)
2. Change R109 (10K) to a 2.2K. (Located next to R104)
3. Re-tune L14, L12, Lll, L10 for Maximum Forward Power.
4. Check transmit on FM. If modulation is not clear, adjust VR5
   counter-clockwise for good clarity on FM transmit.

MODELS: Teaberry T Bear, "T" Command 
1. Change R87 (1.5 Meg) to a 1 Meg
2. Change R42 (15 Ohm) to a 2.2 Ohm
3. Change R43 (2.2 Ohm) to a.47 Ohm
4. Re-Tune L15, L12, L11 for maximum Forward Power

MODEL: Teaberry Stalker IX (Export)
1. Remove TR31
2. Change R162 (10K) to a 1K
3. Change Resistor (10K) next to R129 to a 1K

MODEL: Texas Star 2100.
1. Remove TR32
2. Change R174 (10K) to a 1k
3. Change R187 (10K) to a 1K

MODEL: Tristar 120
1. Change R70 (4.7 Ohm) to a.47 Ohm
2. Re-Tune L10, L11, L12, L13 for maximum Forward Power

MODELS: Tristar 240 (New Model), Tristar 340 (New Model)
1. Change R97 (10 Ohm) to a 1 Ohm
2. Re-Tune L7, L11-B, LH-10, LH11, L1 for maximum Forward Power

MODELS: Uniden PRO-500D, PRO-510XL, PRO-520XL
1. Change Resistor (2.7 Ohm) located in front of final bias Resistor
(15 Ohm w/ RF Bead) to a .47 Ohm. (Do not change 15 Ohm Resistor)
2. Re-Tune L9, L6, L5, L4 for maximum Forward Power

MODELS: Uniden AR-14, AX-14
1. Remove TR8 & Change R31 (5.6K) to a 1 K
2. Change C134 (330 pf NPO) to a 390 pf NPO
3. Change R91 (1 Ohm) to a .47 Ohm
4. Re-Tune L15, L16, L17 for maximum Forward Power

MODELS: Uniden AR 44, AX 44, AR 711, AX 711, PC 66, PC 66A
1. Change R76 (3.3K) to a 1 K
2. Change R43 (10 Ohm) to a 2.7 Ohm
3. Change R108 (1 Ohm) to a .47 Ohm
4. Re-Tune L13, L10, L9, L8 for maximum Forward Power.

MODEL: Uniden Dwight D
1. Remove C128 (.47uf) & TR16
2. Change R132 (1 K) to a 470 Ohm
3. Change R50 (3.9 Ohm) to a 1 Ohm
4. Change R47 (1 Ohm) to a.47 Ohm
5. Re-Tune L13, L12, L11 for maximum Forward Power.

MODEL: Uniden Grant, Madison
1. Remove TR24
2. Change R126 (10K) to a 2.2k
3. Change R124 (10K) to a 2.2K
4. Re-Tune L37, L38 for maximum Forward Power on AM.
Model: Uniden Grant XL
1. Remove TR24
2. Change R126 (10K) to a 2.2K
3. Change R124 (10K) to a 4.7K
4. Re-tune L37, L38 for maximum forward power on AM
MODELS: Uniden PC-33, PC-55
1. Change Resistor (12 Ohm) in front of Transmit Driver to a 4.7 Ohm.
2. Change Resistor (1 Ohm) between the Driver and Final transistor to a .47 Ohm
3. Re-Tune L8, L7, L6 for maximum Forward Power
Model: Uniden PC-66XL
1. Change R76 (2.2K) to a 1K. (Located near mic Socket)
2. Change R43 (10 Ohm) to a 2.7 Ohm.
3. Change R108 (1 Ohm) to a .47 Ohm.
4. Re-tune L13, L10, L9 for maximum forward power.
Models: Uniden PC-76XL & PC-76XLW
1. Change R58 (8.2 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.
MODEL: Uniden PC-77
1. Remove TR31
2. Change R142 (2.2K) in audio circuit to a 560 Ohm.
3. Change R122 (12 Ohm) in driver circuit to a 4.7 Ohm.
4. Change R119 (1 Ohm) in final circuit to a .47 Ohm.
5. Re-Tune L13, L12, Lll for Maximum Forward Power.

MODEL: Uniden PC-122
1. Remove Q27 (behind squelch adjustment on circuit board).
2. Change 10K resistor between mike white audio lead and collector
of Q27 to a 1K.
3. Change 10K resistor between base of Q26 and disc Capacitor from
   collector of Q27 to a 1K.
4. Re-Tune for Maximum Forward Power.

MODELS: Uniden PC-244, AR-144
1. Remove TR27
2. Change R157 (10K) to a 1K
3. Change R147 (10K) to a 1K

MODEL: Uniden PTC-104
1. Change Resistor in front of TX Driver (10 Ohm) to a 4.7 Ohm
2. Change Resistor next to L14 (1 Ohm) to a .47 Ohm
3. Re-Tune L11, L9, L8 for maximum Forward Power

MODEL: Uniden Washington
1. Remove TR32
2. Change R99 (10K) to a 2.2k
3. Change R94 (10K) to a 2.2K
4. Re-Tune L36, L37 for maximum Forward Power on AM.

MODEL: Uniden Zachary T
1. Remove C128 (.47uf) & TR16
2. Change R132 (1 K) to a 470 Ohm
3. Change R50 (3.9 Ohm) to a 1 Ohm
4. Change R47 (1 Ohm) to a.47 Ohm
5. Re-Tune L13, L12, L11 for maximum Forward Power.