Was working, now trying to burn up!
Posts: 736
Threads: 26
Joined: Jun 2013
City: Hayward, California
You have to remember that something else in the radio could have ruined the tube. After all it worked at first. Like PARadiogeek suggested you should replace all components and bad wiring before powering up again, if not you might be looking for a new transformer soon if not more. The dim light bilb/variac is essential, but everything needs to be repaired as well as you can even before using it.
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RE: Was working, now trying to burn up! - by Warren - 09-13-2014, 05:11 PM
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Shadow Meter Bulb
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Butting in here with a question. Since the shadow meter is connected directly to the 1st and 2nd I.F.'s wouldn't the met...RossH — 06:43 PM |
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 |
Shadow Meter Bulb
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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 |
Shadow Meter Bulb
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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 |
Shadow Meter Bulb
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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 |
Shadow Meter Bulb
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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 |
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