voltage checks [resolved]

kryptic4l · 1442

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Offline kryptic4l

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on: October 28, 2018, 08:22:14 AM
am i chasing down  a non exsistent issue,   just installing my speed ball, and my voltages are

54 V     pin one seems a bit low,   could this be tube related ? i just replaced the big one, since i smashed the stock one.  its an older genelux 6as7
170 V
0 mV
170 V
76 V
« Last Edit: October 28, 2018, 11:30:34 AM by Paul Birkeland »


Offline kryptic4l

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Reply #1 on: October 28, 2018, 08:24:53 AM
also i am curious , does pin 1 feed through to pin 2 or does pin 2 provide the power to pin 1


Offline Paul Birkeland

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Reply #2 on: October 28, 2018, 09:21:38 AM
Is this on the large board or the small board?  Where do you get 54V?  For example, is that 54V on OA of the small board? Or is that 54V on G of the big board? 

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline kryptic4l

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Reply #3 on: October 28, 2018, 09:48:04 AM
not to the big board yet, 54 is on the 0a of the small board


Offline Paul Birkeland

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Reply #4 on: October 28, 2018, 10:41:45 AM
The last 3 times I have seen this problem, a PN2907 has been installed backwards.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline kryptic4l

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Reply #5 on: October 28, 2018, 11:25:27 AM
bingo, thanks so much


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