Hi-Fi tube amp kit from China
Posts: 244
Threads: 11
Joined: Oct 2011
City: Black Mountain, NC
Great work. May want to consider using some RTV to bond the large electrolytics in the power supply to the chassis. If the were axial like the old days then they would be hung between two terminal strips for support.
A lot of weight to bounce and vibration around I would think.
Thanks,
Mike
Cossor 3468
GE 417A
Philco 118H
Radiola 17/100
Scott 800B6
Silvertone 6130
Stromberg 535M
Truetone D1952
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RE: Hi-Fi tube amp kit from China - by PhilcoMike - 01-19-2017, 03:33 PM
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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 |
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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 |
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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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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 |
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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 |
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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 |
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B&K 1077B no video
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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 |
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