Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: EDick on August 19, 2023, 07:29:15 PM

Title: Failed Voltage Check :( [resolved]
Post by: EDick on August 19, 2023, 07:29:15 PM: Good evening folks!

Assembly went pretty smoothly, resistance checks were A-OK after reflowing one joint. Voltage checks went as follows:

1   -.757
2   -.64
3   0
4   -0.64
5   -.734
6   0
7   .058
8   0
9   .0113
10   0

Also, tubes were warming up but no LED lighting.

Thanks in advance!
Title: Re: Failed Voltage Check :(
Post by: Paul Birkeland on August 20, 2023, 05:21:13 AM: What DC voltage do you have on terminal 13?
Title: Re: Failed Voltage Check :(
Post by: EDick on August 20, 2023, 07:03:44 AM: 13 is reading about 12mV, then it slowly climbs
Title: Re: Failed Voltage Check :(
Post by: Paul Birkeland on August 20, 2023, 07:10:10 AM: Do the tubes still glow? Can you post some build pictures? What are the DC voltages at terminals 15 and 21?
Title: Re: Failed Voltage Check :(
Post by: EDick on August 20, 2023, 11:28:49 AM: Sure thing, T15 & T21 read -0.634V & currently it looks like the tubes arenâ€™t lighting up anymore. They were fine during the initial check and the 6080 is decently warm but not hot like under normal operation.

I took some pictures but Iâ€™m working on converting them so I can add those in a bit.

Thanks!
Title: Re: Failed Voltage Check :(
Post by: EDick on August 29, 2023, 02:45:48 PM: Howdy, I'm back with the pics. Sorry for the wait, was traveling. Thanks!
Title: Re: Failed Voltage Check :(
Post by: Paul Birkeland on August 29, 2023, 03:01:48 PM: Power transformer terminal 11 red wire is not running to the correct position. 50/50 that this would cause your fuse to blow.
Title: Re: Failed Voltage Check :(
Post by: EDick on September 15, 2023, 05:41:00 AM: Lol wow, we must have totally missed that. Thanks so much, as always!