Hi John
Get an estimate for the repair, sometimes it is cheaper to get a used KA39.

Pete

KA-39
 

There's one for sale on ebay for a "C" note, plus shipping.

Pete - got the radio repair done today. The bi-annual static system recertification was due this month so I had Muncie Aviation look for the problem. They found a 24V feed wire to the power supply loose, reconnedted it and it works fine. Thanks for your help.

John
That was an easy repair by the sounds of it. Glad to be of help.

Cheers
Pete