Voltage too high/LEDs not turning on

ganoosh · 1372

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Offline ganoosh

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on: June 13, 2019, 01:07:38 PM
This was my first time assembling an amp--got to the voltage check and had some high voltage readings for some of the terminals. Results below:

1. 145
2. 163
3. 0
4. 164
5. 148
6. 0
7. 146
8. 0
9. 147
10. 0

Also neither the LED attached to A3 or A8 lit up. I'm attaching photos.

What should I be troubleshooting here first?


Offline ganoosh

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Reply #1 on: June 13, 2019, 01:08:45 PM
More photos just in case.


Offline Paul Birkeland

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Reply #2 on: June 13, 2019, 01:16:40 PM
Did you pass the glow test?

Paul "PB" Birkeland

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Offline ganoosh

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Reply #3 on: June 13, 2019, 01:22:32 PM
Yes, both were glowing and there was heat coming off them. Did a loose wire check and didn't see anything. Should I post more pictures?


Offline oguinn

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Reply #4 on: June 13, 2019, 01:33:13 PM
Shouldn’t there be a black wire on the center pin of the front tube going to the pot?

Jameson O'Guinn

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Offline ganoosh

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Reply #5 on: June 13, 2019, 04:32:07 PM
Ah, thank you so much Jameson! That was it, I had somehow totally omitted that during installation. Soldered that one in, voltage readings are correct and the thing sounds AMAZING!


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