04-11-2016, 09:39 PM
Well, I've finally got this thing playing. I replaced all of the resistors and all the film and electrolytic caps. I went with a 1000pf buffer cap rather than the 1250 but I don't know if it makes a difference since I'm using a solid state vibrator. I do have a high pitch hum problem. The hum comes out of the speaker and you can hear it instantly when the radio is turned on. After about 30 seconds when the tubes warm up the broadcast stations become audible but the hum is still there, although not as loud. Any suggestions?
Thanks in advance,
Keith
Thanks in advance,
Keith