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Revalve a quatravalve


andytoad
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Hi Andy, I'm interested in this too, as I have the Twin Valve. This thread on TB concludes that the QV is fixed bias:
http://www.talkbass.com/forum/f15/trace-elliot-quatra-valve-165731/index2.html
if so, so you'd need to get a tech to do it for you

Edited by Roland Rock
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[quote name='Roland Rock' timestamp='1397541231' post='2424867']
Hi Andy, I'm interested in this too, as I have the Twin Valve. This thread on TB concludes that the QV is fixed bias:
http://www.talkbass.com/forum/f15/trace-elliot-quatra-valve-165731/index2.html
if so, so you'd need to get a tech to do it for you
[/quote]

Ahh,
Does that mean they need to change resistors on the powerstage to balance them out?

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  • 1 month later...

Because of the high voltage in tube amps and the fact that resistors can store high amounts of electricity for long periods, I'd avoid the risk and would pay a tech to do that. Expecially 'cause a once over can certainly make you save money on the long run, there are many small/cheap components in a tube amp that gradually die and of course they can bring around lots of expensive parts if neglected... just my 2 cents.

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