Testing for hum

Here is a pic of the amp in action with the KT77 tubes.

I hooked the EL34 up to a pair of Tannoy MX2 speakers. They have an SLP of around 93db @ 1watt. With the amps volume control turn all the way to maximum volume, I could hear no hum. I hooked up my ipod to see how it sounds compared to my Baby amp, and it blew it away. The extra power really controls the bass a lot better.