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Joined: Oct 2011
City: Jackson, NJ
So, I tried the baked Candohm in circuit. Connected the case to the chassis.
The hum is almost gone.
However the leaking voltage is still there, but the leakage current is 0.2mA instead of 10mA as before when loaded with 10kOhm resistor.
Honestly, if I got it in this condition I would never look into this in the first place.
However, I think I will rebuild it. I already got the resistors.
People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
Messages In This Thread
RE: Another 7G605 Zenith TO - by morzh - 04-25-2019, 08:28 PM
Users browsing this thread: 33 Guest(s)
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HiFi (Chifi) tube amp build - but my own design.
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Mike, Tim; you are about to enter the twilight zone. Doo doo doo doo, doo doo doo doo
This is something alright. I'm go...RodB — 06:26 PM |
HiFi (Chifi) tube amp build - but my own design.
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:lol: We need to start a singing radio group! I play the guitar, so maybe get a few vocals? Anyways, Mike, I did try mou...TV MAN — 05:56 PM |
HiFi (Chifi) tube amp build - but my own design.
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And so does a barber shop quartet. mmmmmmRodB — 03:54 PM |
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I did try an LED bulb in place of the original but wasn't impressed with the amount of light on the dial. Seems like it ...RodB — 03:51 PM |
HiFi (Chifi) tube amp build - but my own design.
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Tim
Would mounting he transformer vertically change the hum, if used without additional parts?
Also, in these amps...morzh — 02:25 PM |
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Gary
I doubt it would introduce any noise. We use similar lamps for the panel indication, 12V AC lamps: they are LEDs...morzh — 02:15 PM |
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Not sure if anyone has tried this but there are 6.3 volt miniature lamps in bayonet and screw-in base options available ...GarySP — 11:31 AM |
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Any 6.3 volt pilot light will work. I would use the brightest one I could find in my workroom. Be sure the dial is clean...RodB — 10:45 AM |
HiFi (Chifi) tube amp build - but my own design.
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Tim,
nice write up and thanks for sharing !!
Sincerely Richardradiorich — 02:47 AM |
HiFi (Chifi) tube amp build - but my own design.
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Well, this was a real "Hum-Dinger" :lol: ! This will be kinda long, but hopefully it will help others having t...TV MAN — 01:55 AM |
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