I've got one of these old ones in for repair, reverb not working. I'm pretty sure it's the tank(It's the long one at the bottom of the cab, 4FB2B1B). Before I order the correct tank(I'm also taking recommendations on the best one for this amp), I wanted to check with the minds here, as the reverb control acts more like a tone pot. The amp gets really bright and a little hissy as the reverb knob is turned up. Even with no tank connected, it acts the same way.
I'm not seeing anything in the schematic that would make it act this way.
Is this normal operation for this amp?
I'm not seeing anything in the schematic that would make it act this way.
Is this normal operation for this amp?