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Cap replacement is completed. (Excepting PSU filters for now). A cautious power up got the expected behaviour of the dim bulb, but atrocious FM reception and nothing at all on AM. I looked around the areas I had worked, and eventually found some components disturbed near the last IF can for AM.... I'd pushed them causing leads of these components to short out the IF transformer Fortunately no lasting damage done, and rearranging the cap and resistor positions brought everything back to life.
I don't hold with furniture that talks.
Messages In This Thread
RE: Zenith H725 - by EdHolland - 03-24-2025, 06:56 PM
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5U4 vs 5Z4 tubes
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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 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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Hello Vlad95 ,
Very Funny !
Sincerely Richardradiorich — 11:01 PM |
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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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Hang in there...PaulPaul Philco322 — 09:30 PM |
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Hello RodB,
Checking my previous post I realized you're the one with the 42-340. I replaced the string for the tuning...osanders0311 — 03:12 PM |
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