Modifying the CW AGC of a Kenwood TS-130V
The
AGC of a Kenwood TS-130V becomes nervous when the receiver is switched
to CW mode. The reason is a small time constant. Here's a mod which
helps to make listening to CW more comfortable.
Parts required for the mod:
- Resistor 15 kOhm, low power (1/4 or 1/8 watt)
- Capacitor 0.33µF, small ceramic (voltage not critical)
.
1. Strip the TS-130V completely open.
2. Look for the IF board on the bottom side.
![1](AGC%20CW%20mod%20001.jpg)
3. Search connector "33" towards the transceiver's rear panel.
4. Look for PIN 4 (red wire, named "AGC") and PIN 5 (brown wire, named "RFG").
![2](AGC%20CW%20mod%20003.jpg)
5. CAREFULLY strip a small piece of insulation material from both wires.
6. Solder the 15 kOhm resistor and the 0.33µF capacitor in series between the to wires.
![6](AGC%20CW%20mod%20011%20sm.jpg)
(click to enlarge)
7. Insulate the whole thing with electrical tape.
READY
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