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RE: TFA-204 300B Operating Points

Thanks, Mike. So, if you're saying a 350V/60mA op point is OK with the TFA-204, then I'll see what I can do with that.

The more I read around, the more it seems George liked to go "by the book," choosing op points from tube datasheets.

For now I'm going to try this with parts I already have, which are a PT with high voltage secondaries of 720V and 660V and a GZ34 rectifier tube. I'll see if I can get working LTSpice models for the combos mentioned in my original post, and then order parts to try them all out.

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