Hi all.
I just finished up my amp and did resistance/voltage checks and everything seemed to be working properly, and when I plugged it in the left channel didn't work. Both sides of both tubes are glowing properly, and not sure exactly what is causing the problem.
There is also a slight hum with nothing connected to the RCA's if you turn the pot up. Not sure if thats a regular issue just from the floating inputs or not.
Thanks.