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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Bad Tube Roll posted by John Brandon on October 27, 2014 at 15:36:34:
You placed the plate voltage of one the the 6sn7 cathodes.
The heater was connect but only on one side.
The grid circuit was connected to one of the plates.
The only problem I see is placing high voltage on one of the cathodes of the 6sn7.
It could have arced over to the heater but I will guess that didn't happen since you say it's working now.
I think you dodged a bullet.
Plugging the wrong tube into a radio, when I was 14, is what started all this for me.
When I took it to Dwight (K6LOV and my friends father) he made me follow along as he trouble shot it.
Showing me how the wrong tube caused a high amount of current to flow burning up parts along the way.
At 59 years old now, I still can't thank him enough.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
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Follow Ups
- RE: Bad Tube Roll - Tre' 16:00:05 10/27/14 (7)
- RE: Bad Tube Roll - John Brandon 16:05:44 10/27/14 (6)
- RE: Bad Tube Roll - Tre' 16:30:20 10/27/14 (5)
- RE: Bad Tube Roll - FenderLover 18:58:18 10/27/14 (4)
- RE: Bad Tube Roll - John Brandon 19:08:05 10/27/14 (3)
- I'd leave a note with those 6SN7's. - FenderLover 20:51:23 10/27/14 (2)
- Better yet, just trash them. - JJ Triode 20:56:09 10/27/14 (1)
- RE: Better yet, just trash them. - John Brandon 21:11:50 10/27/14 (0)
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