Question about Audio Players & Recorders

1 Answer

Peavey Triumph 120

Hi Guys

I am based in the UK and have a Triumph 120. I recently revalved the amp with nice valves... front end Groove Tubes 12ax7m.... back end Harma 6L6. The bottom end has dropped out after 4 weeks . I heard that this amp is notorious for this. Any ideas?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 1,512 Answers

Here is a good place to start. Check the tubes for you... supposing here that he does have a tube checker ... I mean I have... :). A FixYa rating will help me build my profile in here. If you want to talk in more depth about the problem, rate me FixYa and I am yours.

Posted on Feb 09, 2008

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

What is a Peavey 44XT Diaphragm Kit for

If you've never replaced a tweeter diaphragm, then maybe you should seek out someone local who has. These guys are a bit fragile and misalignment can turn it into garbage. On the other side of this discussion...overpowering speakers blows tweeters 1st because their voice coil windings are so small, and are more easily damaged. Re-examine your PA setup and adjustments or you'll find yourself back on the phone ordering more diaphragms.

May 28, 2014 | Peavey Audio Players & Recorders

1 Answer

I have a Valveking 212...I turn the amp on but the tubes are not lighting up...There is no sound...What is the problem ???

I believe there's a fuse on the main board inside that supplies the heater voltage.
The heaters are what cause the tubes to glow.
If you try going inside yourself BEWARE of high-voltage-human-killing potentials inside

Nov 02, 2010 | Peavey Audio Players & Recorders

1 Answer

I have a Peavey Valve King 112. When I plug in my guitar I get nothing.The power light is on and the preamp is on as well.There is just silince.No humming or crackling.

This could be anything. You could try swapping the preamp tubes. If it were a power amp tube problem, it is likely the mains fuse would have blown, Since the pilot lamp is still on, we will assume that the problem is at the preamp level. This absence of signal can be caused by a dead tube, or more complexly, by a faulty resistor or capacitor in the signal path. If you can't resolve the problem by swapping preamp tubes with a known good one, you should take the amp to a tech experienced in servicing tube guitar amps. Any good tech should be able to sort this out within an hour of labor time. I doubt it will require any expensive parts. It may even be as simple as a loose/bad connection, either from manufacturing, or from normal use. Pro tube amps are subjected to levels of heat, vibration and electrical stresses that consumer electronic gear never sees.

Oct 06, 2010 | Peavey Audio Players & Recorders

2 Answers

My peavey 3120 guitar amplifier head is not producing sound. no hiss or hum at any volume. all the indicating lights come on. all the tubes glow as they should. what is wrong?

HI.... I'm a tech AND guitar player. Tubes may light but not work.
Take it to a amp repair guy that has a tube tester
Otherwise you could spend BIG $$ on lots of tubes

Aug 18, 2010 | Audio Players & Recorders

1 Answer



Switch your amp on and leave it in the stand-by mode, you see tubes glowing.
Than you can pull another tube (same type) out of the amplifier and put it in those sockets. If they are also not glowing, there must be a wiring problem.
It very strange that there are two tubes not glowing.
Give it a try, you can do it yourself.

Reagrds Gerard

Aug 11, 2009 | Plantronics Audio Players & Recorders

2 Answers

Peavey 5150 II guitar amp! Power Tubes don't light up and only

peavey 5150 II has low humming sound but still plays and sounds pretty good...should i re-tube it?

Jul 18, 2009 | Peavey PV-3800 2-Channel Amplifier

1 Answer

Hi, Peavey Classic Guitar amp , Has NO SOUND

Hi Mike,

If you switch on the amplifier, do you hear nothing at all?
Or do you hear low level noise or hum out of the speaker?
Don't know if you're technician.
If the tubes are glowing, you can measure the high voltage.
Check also fuse 3 and 4, thats the neg. voltage -27V and -14V.


Jul 06, 2009 | Peavey Audio Players & Recorders

1 Answer

Peavey classic 30, new tubes and PT with absolutely no sound

I'm not sure what "PT" is , but the heater voltage is separate from the other voltages required for this unit to function properly. Please note that with tube systems, there are voltages in the 300-400V range that can cause injury. If you do not have experience with tube based electronics, I would suggest that you bring this to a service center for repair.

Please update this with what you mean by "PT" and we'll continue from there.


Nov 12, 2008 | Audio Players & Recorders

2 Answers

Peavey classic 50/50 keeps blowing fuses.


I have a classic 50/50 as well and re-tubed it with JJ el84s, vintage teslas and mullard 12at7s. As long as you replaced it with EL84s, I can't imagine that the output would be increased enough to damage the OT. When I got my 6505 Combo, one of the 6L6s was bad, and it kept blowing fuses and howling like a banshee. I would think that an OT problem would result in a significant loss of output...or none at all. I've gotten DOA tubes from a few places. I would suggest swapping each tube out 1 by 1, until you find it...if that is indeed the problem...before you pay the cash to have it worked on.

Oct 28, 2007 | Audio Players & Recorders

4 Answers

Crate BV120 too quiet

Have the tubes checked when good and warm.
Check for any leacking capacitors.
Check all solder joints are shiny any that are dull try to reheat and apply solder.
Good Luck

Oct 23, 2007 | HHB Radius 50 Tube Amplifier

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

505 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts


Level 3 Expert

100311 Answers


Level 3 Expert

4706 Answers

The Knight
The Knight

Level 3 Expert

71095 Answers

Are you an Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides