H&K ATS Sixty Hybrid Amp Troubleshooting?

[Pingu]

Situation:
1.Amp turns on, red power light on and speaker produces a humming sound on high volume. ( I consider this Normal )
2.Tube Overdrive...

[trip]

Hey guys,

I just picked up ANOTHER Bv120H for 50 bucks. (The second model, still blue tolex'd but the black faceplate and non-script lettering)...

[JPS59]

Hi there,
I'm fairly new to tube amps and am struggling to work out what is wrong with my orange rc30 combo amp.
When I turn it on the AC power...

[CoopDaKill]

Hi guys,
I found a Sound City - Concord, Tube Amp. Made by Dallas Arbiter in U.K. dual EL34's It has NO Sound. Not passing signal. Just...