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In Reply to: RE: Float the filaments and you will have . . . posted by John PA on June 12, 2012 at 22:30:46
John
Do you mean with an above ground DC source tied to the filaments? That is the best way I have seen to reduce troublesome hum.
When problems become increasingly difficult,we can always rely on our collective knowledge and seek relief.
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you are good to go.
The Elaborate DAC=Johnny's Balloon Meshplate 27 Balanced Preamp=Balanced Six Pacs=Newform Research 645
iRiver H140/MB Balanced dac/amp/Ultrasone Ed. 9/JH13 Pro IEM's
see images at: www.pbase.com/jamato8
On some phono stages I have gone up to 90vdc tied thru a pair of 100k resistors.
When problems become increasingly difficult,we can always rely on our collective knowledge and seek relief.
the problem. On my dac I built, I set the tubes to around 60 volts above ground. Worked very well and the analog stage is very quiet. You gotta love tubes.
The Elaborate DAC=Johnny's Balloon Meshplate 27 Balanced Preamp=Balanced Six Pacs=Newform Research 645
iRiver H140/MB Balanced dac/amp/Ultrasone Ed. 9/JH13 Pro IEM's
see images at: www.pbase.com/jamato8
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