Philco 46-480 Electronic Restoration
Posts: 287
Threads: 16
Joined: Jan 2024
City: Tulsa
State, Province, Country: Oklahoma
You make a great point! I’ve needed to be very delicate in disassembling, so that I can reverse engineer the schematic from the circuit. Surely now that I’ve got the schematic sorted out and the wiring documented, it won’t be so bad to rebuild it.
Joseph
Philco 46-480
Philco 49-906
Messages In This Thread
RE: Philco 46-480 Electronic Restoration - by jrblasde - 01-01-2025, 10:43 PM
Users browsing this thread: 2 Guest(s)
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Recent Posts
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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 |
5U4 vs 5Z4 tubes
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5U4 and 5Z4 almost identical. I think nothing happened if you left 5U4 instedad 5Z4 long time.
Just heater current 5U4 ...Vlad95 — 11:02 PM |
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