trinityamps.com

We have one squealer (Smokin' Tone) I know of. I'd like to know if there are any others as I think this is rare indeed? If you do or did, please let us know and what you did to fix it or if you still need help.

_________________
Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps

Not I, stephen...mine's quiet and loud with more spunk than a grounded teenager in the middle of puberty!!
-

My TMB will squeal if I have both volumes cranked - I have to back my git volume back to about 8 to keep it down. To be honest I haven't remedied it yet (or even tried)- I should so any thoughts here would be much appreciated. I don't really ever crank both volumes (MV is normally on 10 but the volume knob is rarely above 7).

My .02 - if there is a way to fix the squeal without changing the tone I have right now I'd be interested!

Smokin-Tone fixed his with Fender style jacks. Try this: ground the jack to the chassis star ground.

See viewtopic.php?t=425

Maybe bring that baby over & let me play with it. Are the OT leads twisted?

_________________
Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps

What is your output jack configuration? Grounded or not?

_________________
Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps

I had to ground mine to prevent squeal.
Nigel

Interesting. I never had a squealing sIII and never ground my jacks. I hope I get a squealer soon so I can try this out!

Before you grounded the jacks, what else did you do to it to reduce the squeal?

_________________
Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps

Maybe its my git... when I was playing my hollowbody it does this without fail, I was sitting 2 feet away from it with my strat with both cranked tonight and nothing.... weird. The problem is my strat is in rough shape and I rarely play it because of this! I've been meaning to get it completely overhauled though, I guess this gives me more incentive.

I'll have to try grounding the jacks as you suggest and see if it helps. But I should bring it over. I still haven't picked up a speaker for the cab that was built (embarassing!) but I have vowed to do it this weekend (one of those reconed greenbacks). Once its in there I'll drop in and you can check out my poor wiring haha - hey its not the prettiest but it works!

Oh yeah - not all my OT leads are twisted, just the ones going to the second EL84.

Nothing, I had no squeal until I started messing with the primary impedance of the OT, I had to move to insulated jacks and that is when the squeal started. Moving back to Switchcraft style jacks fixed it up.

You might want to hold off until you've heard the Tone Tubby Hemp Cone Ceramic or Alnico I've ordered.

_________________
Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps

Stephen, I have the squeel problem with my Trinity TMB (pre sIII).
Is there are way to address it with that circuit? Should I convert to an sIII?

When did it start? Did you change some tubes? It could be a microphonic tube? It was built according to the following post . Take a look at:

viewtopic.php?t=13&highlight=squeal

_________________
Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps

Hi Stephen,

The squeel has been there for as long as I can remember; just got used to it I guess. I could try some fresh tubes to see if that does it but I doubt it as the Normal channel is fine which can be cranked without problems. Its only when I turn the Vol and Master up on the TMB channel that the squeel kicks in

In fact, without a guitar it will squeel.

JD, is your output jack grounded?

What do I look for to find out whether the output jack is grounded
(I'm not really a builder; just a player)

It's not, I can tell you that. But, then this amp didn't squeal when it was built.
I can take a look at it some time, but if you want to ground the Output, you can. Add it from the black wire on the output jacks to the star ground by the transformer.

_________________
Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps

I grounded my output jack and there was little if any change. Has the old reversed primary OT leads been mentioned? That will create and awfull squal.

Perhaps I should re-phrase; Its not really squeel, more feedback. If I turn the Master Vol and Vol on the TMB channel to 5-6 each, the amp will feedback (without a guitar plugged in). Could this be tubes?

It certainly could be tubes. What do you have in there? Try swapping the tubes, one at a time & see what happens, if anything.

_________________
Stephen
Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps

I will try the tube swap exercise this weekend ...