Posts: 715
Threads: 9
Joined: Apr 2018
City: S. Dartmouth
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FWIW:
Most energy storage capacitors should not be directly shorted. Discharged by a suitable power resistor. Such an energy dump can cause disassociation of metalizing or opening an internal link to the terminals. The separation of metalizing can cause noise issues in sensitive circuits as these isolation's of metalizing connect and disconnect randomly.
Pliny the younger
“nihil novum nihil varium nihil quod non semel spectasse sufficiat”
Messages In This Thread
RE: Restoring Philco 37-604C - by Chas - 10-23-2024, 05:46 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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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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Philco 42-345 Restoration/Repair
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| Hello Vlad95 ,
Very Funny !
Sincerely Richardradiorich — 11:01 PM |
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Philco 42-345 Restoration/Repair
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| RodB
You are European yourself :evil:
I'm Canadian for the last 30 years :snowman:
But not Yankee :lol: Vlad95 — 10:49 PM |
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Philco 42-345 Restoration/Repair
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| The band switch selects different oscillator coils for the band selected. I would look for a bad connection in the switc...RodB — 10:31 PM |
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Philco 42-345 Restoration/Repair
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| Hang in there...PaulPaul Philco322 — 09:30 PM |
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