Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: ganoosh on June 13, 2019, 01:07:38 PM

Title: Voltage too high/LEDs not turning on
Post by: ganoosh 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?
Title: Re: Voltage too high/LEDs not turning on
Post by: ganoosh on June 13, 2019, 01:08:45 PM: More photos just in case.
Title: Re: Voltage too high/LEDs not turning on
Post by: Paul Birkeland on June 13, 2019, 01:16:40 PM: Did you pass the glow test?
Title: Re: Voltage too high/LEDs not turning on
Post by: ganoosh 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?
Title: Re: Voltage too high/LEDs not turning on
Post by: Jameson on June 13, 2019, 01:33:13 PM: Shouldnâ€™t there be a black wire on the center pin of the front tube going to the pot?
Title: Re: Voltage too high/LEDs not turning on
Post by: ganoosh 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!