Posts: 3,145
Threads: 55
Joined: Apr 2011
City: Lexington, KY
Mike, one thing about RCA is their service literature is very comprehensive. You can download load their "red book" service manuals on the "American radio history" site. They seem to be very clear scans. Good luck with that beast!
John KK4ZLF
Lexington, KY
"illegitimis non carborundum"
Messages In This Thread
RE: RCA R-73 RESTORATION - by Eliot Ness - 02-20-2023, 11:28 AM
Users browsing this thread: 8 Guest(s)
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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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