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Old 2nd April 2004, 12:17 AM   #1
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Join Date: May 2003
Location: USA
Default 6DJ8 preamp voltage?

For my next project, I think I am going to build a Pass SOZ v.6 or something. I will need something for voltage gain, though... and I was thinking a tube would be in order.

I would like to use a 6DJ8, and need enough voltage gain across that to drive my 8-ohm speakers with about 10-20 watts... but I am not sure what voltage I should run the tube on. 90V? Higher? Thanks for any help you can provide!
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Old 2nd April 2004, 10:06 AM   #2
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Join Date: Nov 2003
Location: Genova, Italy
Hi

I think between 200 and 300 Volts for optimal
performance.

However, If some contraint exists, also
100V or a bit less will be good.

It obviously depends on the contest:
max swing desired, max distortion allowed,load resistance.

Federico
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