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The Super only hums when I select it with the AB switch.
I don’t have a mastermind. Just a small passive true bypass looper for sending signal to...
I also came to think of one thing I haven't tried. To have the fuel tank powering everything in front of the amp, and the pp2+ for the rest.
Yeah, you're probably right. But I'm not that unhappy with running everything in front of both amps, so if the solution involves a...
But what I find weird is that this all doesn't work when the super reverb is on the isolated output of the ab switch.
One would think that if I...
What if i put a iso transformer after the little passive loop switcher going into the Marshall? Seems like that would help maybe?
Looks great! But you aren’t using fx loop of the amps. Or are you? :)
This is exactly what I did. But the effect loop seems to generate some ground hum even if just the marshall is hooked up.
and I discovered that...
One of my set ups is like this:
Pedalboard —> radial twin city ab switch —> Marshall SV20H and a Super Reverb.
This works fine. But what...
just wanted to chime in and say that Thoman sent me a new amp and paid for the shipping of both return of the old amp and for sending me...
Nothing in the loop. Same with the loop bypassed. (bypass switch on the back)
Yes, you're absolutely right.
I've emailed Thomann. I live in Norway. So it will probably get shipped back to them. :)
Yes, I have taken one out of another working amp. And swapped the preamp tubes in the Marshall one by one. No change.
Btw. This all seems even worse with humbuckers. With the strat I can move around and find a pretty quiet spot. Not with the Gibson 335. I think...
And my other guitar amps are pretty quiet. They're fender amps, but I record a fair amount at home with gain pedals into the fender amps...