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City: Menlo Park
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It is slow-going, but the recap work is progressing. This chassis is quite deep, and access is difficult in a few places where components are snugged in around valve sockets. some areas have screening/shielding panels as well, making it tighter still. Anyhow, I got all the tone circuit, audio section and back towards the detector and discriminator circuits done. I think it is a little over half-way, with the most cramped area now completed.
Now, I'm wondering how I'll align the set, as I do not have the "Wave Magnet" loop antenna to hand - it is in the cabinet, 300 miles away. One option is to bring it back next trip. The other is to finish up here, and take the alignment gear with me. Perhaps this will spur on the work 
I don't hold with furniture that talks.
Messages In This Thread
RE: Zenith 12H090 - by EdHolland - 01-27-2019, 10:35 PM
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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 |
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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 |
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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 |
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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 |
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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 |
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Philco 42-345 Restoration/Repair
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| RodB
:beerchug:Vlad95 — 10:22 AM |
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Philco 42-345 Restoration/Repair
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| Vlad, you nailed it. Swiss and German roots.RodB — 09:54 AM |
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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 |
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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 |
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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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