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Seeking advice .. Resistor loaded parafeed SE

Posted by C.Y (A) on June 21, 2006 at 04:19:13

Hi,

The other day I mentioned of this resistor loaded parafeed SE and some including my local friend seemed to be intersted.
I drew this schematic for your verification and advice, especially the power supply part that tricked from a voltage doubler.

I modified my 47 SE amp for this project, this way it was faster. I was given a tip that with 5K parafeed OPT and 5K load R I can use 2A3.

Did 90% of the work and about to get the 2A3 tubes from a friend, 5842 working voltage looks fine(2.1V at cathode, about 150V at plate) with above circuit. I would appreciate your comment.

Cheers,
C.Y

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