10-20-2012, 03:00 PM
I have a model 65 that has a modulation hum. The hum increases as a station is tuned in and fades between stations. I installed two Y type line to ground safety capacitors to each side of the power line. As well, I have an X safety cap across the line. The set is grounded to an 8 foot copper clad ground. Oddly the modulation seems nearly non existent at times. It really works well otherwise. Any suggestions would be appreciated. Thanks.