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City: Shenandoah,
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Thanks Chas! Yes this radio sat in a friends garage for years before he gave it to me. He was an oil furnace tech and it was given to him by some customer so who knows how long or in what conditions it was kept! The amount of rust on the frames makes your suggestion of a complete tear down and burnishing connections reasonable, certainly easy enough to do. The 350 ohm grid resistors do jive with the values given on the Atwater Kent info site. It’s amazing to me how crude, devoid of components and of simple design we are use to seeing in later superhet sets, and yet illusive as it is to get operational! I have already dug out a 13.8V power supply I had for repairing car radios and 8 track players when I was doing tv/radio repair back in the 70s and early 80s. I plugged it into my IsoTap adjustable isolation transformer and adjusted it until I got it down to around 6.5V output. It works great, tubes glow a little brighter, and eliminates all hash and noise I was getting from the computer ps I was using. I will try dismantling the tuning caps and clean them up, also try those steps you mentioned with a pocket transistor radio. Thanks for the suggestions, it’ll be a little while before I can get back with my progress!
Ron
Bendix 0626. RCA T64 Philco 20B
Philco 41-250. Philco49-500
GE 201. Philco 39-25
Motorola 61X13. Philco 46-420 Crosley 52TQ
Philco 37-116. Philco 70
AK 35 Philco 46-350
Philco 620B. Zenith Transoceanic B-600
Philco 60B. Majestic 50
Philco 52-944. AK 84
(This post was last modified: 02-06-2023, 04:40 PM by 462ron.)
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462ron - by 462ron - 02-06-2023, 04:38 PM
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