It is time: The Fisher TA-600
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Joined: Jan 2014
City: Annapolis, IL
State, Province, Country: USA
Sometimes weak output tubes can do goofy things, like the plates turn red. Did you try the new tubes before the mod? Also, remember, a tube (or set) can test good on a tester, but when the real current and voltages hit it, it cant keep up. I'm sure you know this but I thought I would mention it anyway. Food for thought...
If I could find the place called "Somewhere", I could find "Anything"
Tim
Jesus cried out and said, "Whoever believes in me , believes not in me but in him who sent me" John 12:44
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RE: It is time: The Fisher TA-600 - by TV MAN - 04-27-2017, 07:57 AM
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Hello Tim,
I would if it's a leaky Capacitor So are all 3 of those B- voltages low then ?
Sincerely Richardradiorich — 01:55 AM |
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I found a schematic and think I have the problem traced down to the minus power supply. I have very low voltages that go...TV MAN — 12:41 AM |
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I'd try replacing the bulb first and if that doesn't do it, then change the 35Z5 and see if the problem goes away.NostalgiaRadioTime — 12:28 AM |
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Hello Tim,
I have that exact unit in my shop too plus a Sencore unit there are times I like one or other !!.
Sincerely...radiorich — 11:07 PM |
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I suspect it's been repaired before.
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Thanks Rich! I'll take a look and see what he has. I know there's more modern equipment to be had, but this one I know a...TV MAN — 09:11 PM |
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Hello Tim,
Here is a link to restoration of one on Phil's old radios site !
Sincerely Richard
bk1077bradiorich — 09:01 PM |
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I'm a little befuddled on this one. Should X5 and X4 be tied together like this? It looks like someone added this at so...R3Sons — 07:33 PM |
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