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Re: Edison type 7R [message #63235 is a reply to message #63234] Tue, 22 June 2010 22:06 Go to previous messageGo to previous message
Wayne Parham is currently offline  Wayne Parham
Messages: 18689
Registered: January 2001
Illuminati (33rd Degree)

That is so, so cool! Love the cotton insulated wire. Chassis looks like it's in pretty good shape, just needs a little cleaning.

The 60Hz hum symptom is a pretty common one. It can mean just about anything. Could be as simple as coupling caps gone bad, and if they haven't been replaced, that's likely. I generally replace all paper/oil caps with polys, first thing. Could be a tube too, or alignment, but I'd start with the caps.

Do you have a tube tester? An oscilliscope?

 
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