anyone know a few good power or modulation mods for a uniden washington 8719?
i cut the limeter,
uniden washington 8719 mod's
- countryboy
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uniden washington 8719 mod's
4x4 in a mud duck pond
- marveylus22
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POWER TWEAK
1. Remove TR32 <----leave in place, cut R104
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.
1. Remove TR32 <----leave in place, cut R104
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.
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