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| | |-+  can you adjust the trimmers with the amp on?		 « previous next »
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Author Topic: can you adjust the trimmers with the amp on?  (Read 6611 times)
fred
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« on: May 12, 2008, 04:21:29 PM »
I can't see why not myself but i thought i better ask the more knowledgeable before i potentialy blow something up.
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AdrianJ
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« Reply #1 on: May 12, 2008, 05:28:08 PM »
Quote from: fred on May 12, 2008, 04:21:29 PM
I can't see why not myself but i thought i better ask the more knowledgeable before i potentialy blow something up.

Or yourself up...!!
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Mitch
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« Reply #2 on: May 12, 2008, 05:35:15 PM »
I'd advise against it totally- even with the amp off there's potentially Shocked Shocked Shocked LETHAL VOLTAGES INSIDE  Shocked Shocked Shocked - far better to adjust the OD trimmer with the amp turned off & isolated from the mains supply & then flip it over on top of insulating material of some kind so there's no danger of a short- and then try it through speakers.  I found around 10 o'clock on the OD trim was plenty for Robben Ford type sustain- the other trimmers I would advise against moving- they're for tube balance etc...

hope this helps.  Grin
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fred
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« Reply #3 on: May 12, 2008, 05:37:43 PM »
i amgetting heaps of sustain and feedback its awsome! i have the trimmer at about 2 o'clock if you look at it from the PT side of the amp.
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hywelg
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« Reply #4 on: May 12, 2008, 05:46:05 PM »
No problem with the actual turning the FET and OD trimmers, its what you might also touch thats the problem. I've got mine on the rear panel and it has taken a while to find the right settings, and they vary depending on the pickups. The FET trimmer I've not really messed with since I haven't really found a use for that input yet, apparently a piezo pickup works well thro'  it.
« Last Edit: May 12, 2008, 07:55:13 PM by hywelg » Logged
fred
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« Reply #5 on: May 12, 2008, 06:33:10 PM »
ah thanks, touching things wont be a problem, it can easily be adjusted by applyinga small force from the top using a chop stick.
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JD0x0
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« Reply #6 on: May 13, 2008, 11:09:31 PM »
What if you hypotheticly wired the overdrive trimmer pot to and expression pedal so you could adjust it while you play? Would that be safe for the amp? Just curious.
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It's true i've lost my marbles and i can't remember where i put them.
ChrisL
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« Reply #7 on: May 14, 2008, 01:49:46 AM »
Quote from: JD0x0 on May 13, 2008, 11:09:31 PM
What if you hypotheticly wired the overdrive trimmer pot to and expression pedal so you could adjust it while you play? Would that be safe for the amp? Just curious.

Sure, wire it up to a 100k wah pot and.... "Voodoo Chile" your heart out..lol. 
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