Tube Socket Q?

[DeadSkinSlayer3]

Is there a tube socket that affects only the clean channel? The cleans on my XXX tend to break up a bit easily, but when I plug into the poweramp directly, they dont breakup at all, so I'm guessing the EH pre-tubes are the culprit here. I remember JJ's nearly halving my gain, so could I put a single JJ tube in a socket, and have it only affect the clean channel?

 

[B2D]

Re: Tube Socket Q?

I'm not too good with stuff like this but i believe the V1 slot gets hit with the most gain and has the biggest tonal effect.

someone stop me if I'm wrong.

 

[Kent S.]

Re: Tube Socket Q?

I'm not too good with stuff like this but i believe the V1 slot gets hit with the most gain and has the biggest tonal effect.

someone stop me if I'm wrong.

Generally that's correct, but you'd really have to look at a schematic to be sure ... plugging into the power amp just bypasses the preamp ... so you won't feed it enough signal to break up, or even reach it's output levels.
Turn down your gain, hit the pad switch or use the low gain input if you have one ... sound to me like a gain structure problem, not the tube itself.
But yeah, in many amps the first stage buffer everthing down the line, but it usually doesn't cause any break up problems. Unless I'm missing your point here, try readjusting your controls. Problem is that V1 is only 1/2 of that tube, so when you replace that tube you are replacing another gain stage as well (whatever it goes to). Using the fender as a model, normally V1 is after the input jack, and before the EQ, then V2 is after the EQ, that normally goes on to the PI stage with the reverb line jumping off before it.
You can't reduce your preamp gain and turn up your master? The XXX I'm not familiar with it's layout, whether you have a single gain control or a pre gain, post gain on the clean channel. You can try it though, a lower gain tube won't hurt anything.

 

[Gearjoneser]

Re: Tube Socket Q?

I forgot how many pre tubes there are in a XXX? If it's 3, it doesn't have a tube dedicated to the clean channel. If it has 5 or 6, there's a good possibility that it does. If your amp has a tube chart inside the cab, see if it tells you. If not, contact Peavey, and ask what each of a XXX amp's preamp tubes do.

On my amp, it has 6 pre tubes, and one of them IS a clean channel driver, so I use a JJ in that spot, and also in the PI and FX loop driver tube. The main gain stages get my favorite pre tubes GT12AX7C's.

 

[DeadSkinSlayer3]

Re: Tube Socket Q?

There's 4 pre tubes, but I fixed it by re-eq'ing... I just had to lower all the controls a bit.