Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: bocfan911 on November 01, 2014, 04:49:11 AM

Title: Bottlehead Crack transformer buzzing/overheating problem [solved]
Post by: bocfan911 on November 01, 2014, 04:49:11 AM

Hello,

New here and I'm having an issue. I'm testing out my Crack build (no speedball). I've followed the instructions to the letter, checked all my solder connections and when I turn on the amp the tubes glow, but there is a very loud humming noise coming from the actual transformer. Also, the transformer is getting very hot and stays hot for a long time after turning the amp off.

Could someone help me on a starting point to troubleshooting this problem? I am not sure what to look for, and what to measure.

Thanks!

Title: Re: Bottlehead Crack transformer buzzing/overheating problem
Post by: fullheadofnothing on November 01, 2014, 05:04:10 AM

Were all of your resistance and voltage checks correct?

Pictures will often be helpful when something is wrong that is not shown by the checks.

Title: Re: Bottlehead Crack transformer buzzing/overheating problem
Post by: bocfan911 on November 01, 2014, 05:14:12 AM

 :o

Boy I feel a little derp right now. Upon closer inspection I realized that I in fact had one of the UF4007 recifiers with the banded lead facing the wrong direction!

A quick re-solder and problem has been eliminate  :)