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Old 08-15-2009, 04:44 PM   #1 (permalink)
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bad hum from vs65

Hi All
A newbie here, must say a brilliant forum, hope you guys can help with this one.
I have a VS65R that's recently started humming very loud just on the clean channel ,even with guitar unplugged and volume down, it's perfect on channel 2
it's never been gigged always been a bedroom amp, it's just had a new valve fitted but it did it before that and I was hoping that was the fault but its still the same .
Is it doomed or can it be sort,Any help would be appreciated
thanks

Al
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Old 09-05-2009, 04:29 PM   #2 (permalink)
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Re: bad hum from vs65

i just fixed my vs65s, it was the reverb tank, i didn't have it hooked up and that amp buzzed really bad, i hooked the reverb tank back up and it plays just fine..i hope that helps... any other issues let me know, i am an electronic tech with over 20 years experience, plus i have one right in front of me...
peace
minatour87
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Old 09-05-2009, 04:46 PM   #3 (permalink)
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Re: bad hum from vs65

What sides do the white and red plug go in?
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Old 09-05-2009, 05:09 PM   #4 (permalink)
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Re: bad hum from vs65

Well, whatever way it is, I tried it and I'm telling you that reverb tank is better off, it steals too much tone!
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Old 09-05-2009, 06:59 PM   #5 (permalink)
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Re: bad hum from vs65

i don't like the effect, i usually have it turned to zero.

it shouldn't 'suck the sound', you may have a bad reverb tank or cables they are just RCA audio connectors...

may just tap it with a hammer to get it back to normal....my friend just dropped the amp from a little height to get it back working....

i was thinking of jumpering R59 (a 220k resistor) to bypass the reverb effect

peace
minatour87
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Old 09-05-2009, 07:18 PM   #6 (permalink)
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Re: bad hum from vs65

On my AVT50HX with the reverb tank unplugged it makes the knob act as just a depth switch which I really like. Even though it is in working order I just think that it really doesn't effectively work with the amp.
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