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City: Marion
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No dim bulb just a isolation transformer. Input voltage was 113 now set to 118. Neither cap is grounded but connected to center tap of HV. Transformer does not get hot. I have seen most 120 degrees. Running with 5X4. I don't have another. With 118 volts in caps are at 325 and 295. Didn't notice any volume change. All DC voltages I report are from VTVM (RCA WV77E). Should I get another 5X4?
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RE: Philco 38-2 Low Volume - by dconant - 11-12-2024, 11:16 AM
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Recent Posts
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B&K 1077B no video
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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 |
B&K 1077B no video
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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 |
RCA 15X
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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 |
B&K 1077B no video
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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 |
RCA 15X
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Everthing goes at once, maybe it's the cold weather, I have had 2 dial strings break and no my little RCA is having dial...Paul Philco322 — 10:26 PM |
Philco 91 Schematic
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Hi Dan,
I can't explain this specific resistor but I have seen the use of a switch to apply B+ voltage to screen gri...RodB — 09:36 PM |
6TPZ and 5TPO Radio Help
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I suspect it's been repaired before.
And I suspect whoever repaired it, wanted to re-use old transistors' pin stubs in o...morzh — 09:24 PM |
B&K 1077B no video
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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 |
B&K 1077B no video
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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 |
6TPZ and 5TPO Radio Help
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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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