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 0.33F, small ceramic (voltage not critical)
.


1. Strip the TS-130V completely open.

2. Look for the IF board on the bottom side.
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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").

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5. CAREFULLY strip a small piece of insulation material from both wires.

6. Solder the 15 kOhm resistor and the 0.33F capacitor in series between the to wires.
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(click to enlarge)

7. Insulate the whole thing with electrical tape.

READY

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