Philco model 70 rebuild - by Tim P.
Posts: 1,366
Threads: 94
Joined: Jan 2014
City: Annapolis, IL
State, Province, Country: USA
I have tested this on and off as much as I could this week. I reconnected the original bias resistor last night, but I didnt notice any major difference, although I thought I heard 'the sound'. This evening, I powered up and immediatly heard the noises & saw erratic current fluctuations. I powered down and temp installed a 68ohm resistor. So far so good. With it being intermittent, it is really hard to tell quickly of the problem is really solved or if it is just 'deciding' to work for the time.
When I checked the F-G, I had one of the wires disconnected. I think the problem is in that bias resistor. I dont know if I should replace only the bad section or if I should replace it all. Tell ya, if this is the problem, this one should go in the record books!
If I could find the place called "Somewhere", I could find "Anything" 
Tim
Jesus cried out and said, "Whoever believes in me , believes not in me but in him who sent me" John 12:44
Messages In This Thread
RE: Philco model 70 rebuild - by Tim P. - by TV MAN - 05-09-2014, 08:48 PM
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