TheSPillow
UG's UG
Join date: Jul 2008
737 IQ
#1
Hey everyone, just wanted some input on an issue I'm having.

I got a Dark Terror about 4-5 months ago and I love it (In case you weren't aware, it's pretty much a Tiny Terror with an extra 12AX7 and a tube driven FX loop). However, it's starting to cut out somewhat often, especially when the gain knob is past 12 o'clock.

All of the tubes light up orange (even when it's cutting), and it usually goes away if I wiggle the cable at the input jack of the amp. Usually the volume just decreases a bunch when it's cutting.

Any ideas what this may be or how to fix it?
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Robbgnarly
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Join date: Feb 2011
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#2
get a new guitar cable and try your amp. See if it still has issues.
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TheSPillow
UG's UG
Join date: Jul 2008
737 IQ
#3
Quote by Robbgnarly
get a new guitar cable and try your amp. See if it still has issues.


I have done this. It still cuts out.
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Doesn't speak guitar
Join date: Dec 2009
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#4
If you wiggle cable it goes away?

Sounds like an input jack.
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Maineguitarist
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887 IQ
#5
Bad solder joint?
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Tremolo Bum
Addicted to FR
Join date: Feb 2008
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#6
Well, I had the same problems and it turned out my speaker cable was bad so if you didn't check the the speaker cable to the cab check that too.

Other reasonable guesses would be the jack on your guitar has a bad solder joint (check with a different guitar) or that the input jack on the amp has a bad connection.

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trashedlostfdup
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#7
if it changes with cable movement i would say bad jack on either the guitar or amp.

however some cables fail and cause similar results.

also speaker cables are a good possibility. mine was a 6 footer , so it was holding the remainder of the weight on the cable, the ends were slightly dodgy and probably was on the way out. so i got a replacement under warranty..

also check a different guitar in case the guitar is at fault and has a grounding problem or some other issue.

good luck.

_________________

the bulk of the edit: for some reason i have never really trusted the jack in my dual terror. it feels solid, but it doesn't seem as durable as comparable amps. but two years and still going strong.
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diabolical
Registered User
Join date: Apr 2005
660 IQ
#8
Try the amp with different guitar/cable or test your cable/guitar on another setup and see if it works without trouble. If that is ruled out - look at the speaker cable.

If you wiggle input jack and it comes in/out then most likely the input solder joint, which should be covered under warranty if not mistaken. Check w/ Orange in that case if you can take to a local tech, should be easy fix.

If you rule that out then you should look into tubes, sounds like preamp tube going bad since when you increase the gain it happens. Most likely you cooked it at high gain for too long and it is beginning to act out.
Tremolo Bum
Addicted to FR
Join date: Feb 2008
1,607 IQ
#9
Quote by diabolical
Try the amp with different guitar/cable or test your cable/guitar on another setup and see if it works without trouble. If that is ruled out - look at the speaker cable.

If you wiggle input jack and it comes in/out then most likely the input solder joint, which should be covered under warranty if not mistaken. Check w/ Orange in that case if you can take to a local tech, should be easy fix.

If you rule that out then you should look into tubes, sounds like preamp tube going bad since when you increase the gain it happens. Most likely you cooked it at high gain for too long and it is beginning to act out.

I don't know, I think a bad preamp tube would show its face at most gain levels in this case. My suspection is still a dodgey speaker cable.

Another example of why having spare preamp tubes to test with is always a good idea.

Jackson RR3 Rhoads and DK2M Dinky
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i_am_metalhead
Total Bum
Join date: May 2004
1,992 IQ
#10
Easiest thing to try first is replacing your cables. If that doesn't work, check the solder joints on the jacks of your guitar and amp (or the last pedal in your chain if you are using pedals in front of the amp). If neither of those two suggestions work, try replacing the tubes. If your amp is still cutting out then it is beyond my knowledge.
fly135
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Join date: Jul 2007
831 IQ
#11
Quote by Maineguitarist
Bad solder joint?
Bingo! I'm down with this guy's advice.
TheSPillow
UG's UG
Join date: Jul 2008
737 IQ
#12
Today I tried different cables/guitar and it still cuts out with some pretty bad crackly noises. I'm going to do a bit of research and come back to this thread if I find a fix.
Gibson Les Paul Studio
Yamaha Pacifica 112
Alvarez SLM
Orange Dark Terror
Orange PPC212OB 2x12 cab
Yamaha P-85 Keyboard
fly135
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Join date: Jul 2007
831 IQ
#13
Here is the number of amps I've owned or fixed due to a cracked solder joint. The symptoms varied a bit but were... 1) Volume changes, 2) Input Jack cut out and needed wiggling, 3) Build up of hiss until a loud pop, 4) Lots of crackling

Crate Bass amp
Yorkville Stage G90
Fender Pro Jr
Crate Vintage Club 20
Crate Vintage Club 50

I've got another VC50 that appears to need the same repair. And I had a Marshall ValveState many years ago that I thought needed pot replacements, but now I'm sure it needed resoldering. All you need is a soldering iron and some soldering skills.
diabolical
Registered User
Join date: Apr 2005
660 IQ
#14
Quote by Tremolo Bum


Another example of why having spare preamp tubes to test with is always a good idea.



Yep, right there with you on that one. Reading at the description it could be bad cable or guitar input jack, input jack/solder joint, preamp or power amp tube.
fly135
Cheap Gear Enthusiast
Join date: Jul 2007
831 IQ
#15
If you have an FX loop, then you can jack the FX send into something that outputs audio (stereo, PA) and hear the preamp. Then you can run a pedal into the FX return and hear the power amp. No need to swap tubes to find out what section the issue is in.