Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: tsuid1 on January 22, 2020, 02:57:50 PM

Title: Had voltage for a short while, then nothing
Post by: tsuid1 on January 22, 2020, 02:57:50 PM

Just finished building the crack. I checked the resistance before plugging the amp in and all readings matched the manual's. I inserted the tubes and plugged in the amp.

The 12u7 tube glows, but the 6080 tube doesn't. The LED's glowed for a short while, but stopped after 2 minutes.

I measured the voltage on the 9 socket and got voltage higher than listed. There was no voltage for the 8 socket. Now when I measure either tube socket, I don't get any voltage at all.

The fuse is still fine, and the 8 tube socket is in the correct orientation. Is there any way to fix this?

Title: Re: Had voltage for a short while, then nothing
Post by: Paul Birkeland on January 22, 2020, 06:41:22 PM

Recheck the resistances.  If it's convenient, you can post photos. 

Do the tubes not glow now? 

What AC voltage do you get between L and N on the IEC power entry module?