Norm VE3CZI wrote:
Hello Collins KWM-2 users:

I've almost got my KWM-2 working again, but noticed a problem that is
eluding me.
The Radio receives "great" with RF Gain turned up, BUT when the Audio
Gain Control is increased the RX audio
starts to Motoroboat , which overrides the incoming audio.
The motoroboating occurs even when the RF gain is turned down and the audio
control is increased.

I suspect this is NOT normal, but have never had a KWM-2 previously.

Can anyone advise if this is "normal"?

You need even ask? Art Collins is rolling over in his grave.

OR if "not"...has anyone had this
experience and can offer any advise as to
a possiable solution.

Motorboating is a low frequency oscillation that is caused by varying
current draw in the audio output stage causing the power supply voltage
to rise and fall and get fed back into the input stages. You have a
bad coupling capacitor, or a bad electrolytic in the power supply.

Check C106A and C.

-Chuck