Re: First t00b amp build

Posted by Travis on Oct 20, 2016; 6:48pm
URL: http://guitar-fx-layouts.238.s1.nabble.com/First-t00b-amp-build-tp33400p33648.html

Well I finished wiring up the amp and yesterday was the moment of truth where I plugged it in for the first time. Aaaaaand FAILURE!!!

When checking voltages I realized I had nothing at B+. Sure enough, I trace my wiring back to the rectifier tube and realize I have wired the center tap of the OT primary and the anode of the first filter cap to pin 7 of the rectifier tube instead of pin 8. That was stupid, but I'm just glad none of the parts were damaged from this mistake.

As soon as I fixed that my voltages were looking good and I plugged in the rest of the tubes and the speaker and all is perfect. My B+ is now at 370VDC on the first filter cap

Well I'm pretty stoked! I'll have to post a pic when I get off work. Now just need to build that cab and I'm ready to rock n roll