Ron's RCA T7-5 Electronic Rescue
Posts: 4,950
Threads: 54
Joined: Sep 2008
City: Sandwick, BC, CA
I would have thought that a pair of 1N34 diodes would have been more costly then just picking up another 6H6 metal tube? The metal 6H6s, which are the original style, seem to be the most plentiful, followed by the GT style, I only have one radio that uses the ST style or 6H6G which is a Canadian Sparton.
Regards
Arran
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RE: Ron's RCA T7-5 Electronic Rescue - by Arran - 06-24-2018, 03:42 AM
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Philco 42-345 Restoration/Repair
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Hi OSanders,
Look carefully at the band switch. Turn it slowly and "wiggle" it around the desired band. ...MrFixr55 — 12:33 AM |
5U4 vs 5Z4 tubes
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I think that RCA and GE introduced metal tubes in the USA in 1936. I don't know if they were being made by RCA, GE or b...MrFixr55 — 11:20 PM |
Philco 42-345 Restoration/Repair
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Vlad95,
Thank you for the stringing guides and wow there are so manyosanders0311 — 06:01 PM |
5U4 vs 5Z4 tubes
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A pre war Hallicrafters, and an early one too, very nice! 1936 is pretty early for metal tubes too, which would explain ...Arran — 05:58 PM |
Philco 42-345 Restoration/Repair
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Thanks Rod,
"When you hear the background hiss and no station it usually indicates that the oscillator quit" ...osanders0311 — 05:52 PM |
Philco 42-345 Restoration/Repair
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RodB
:beerchug:Vlad95 — 10:22 AM |
Philco 42-345 Restoration/Repair
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Vlad, you nailed it. Swiss and German roots.RodB — 09:54 AM |
5U4 vs 5Z4 tubes
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Well this is a Hallicrafters SX/9 circa 1936.
No real issues so far although I dodged a real bullet with a cap that was...bridkarl — 07:59 AM |
5U4 vs 5Z4 tubes
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The pinout is the same but the 5U4 has a 3 amp filament, verses 2 amps or less on the 5Z4. I think that the pinout of a ...Arran — 12:04 AM |
Philco 42-345 Restoration/Repair
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By the way.
osanders0311
Take a look here: Dial cord stringing Guides
May be here you can fount correct string settin...Vlad95 — 11:15 PM |
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