Home Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

Re: Jeff's low initial C PS ideas may not be entirely novel ...

Hi Steve,

I don't know what mikeyb is talking about as it doesn't apply to me. He is again grasping for straws a second time I'm afraid, to try to discredit me in any silly way possible. Thats OK, .... people read him.

Correct. I eliminated the 30 uF cap input filter on the stock HF-81 by installing a 37 mHY choke input filter. ( A Panasonic V-850 high current low DCR series, rated 22 mHY, measures 37 mHY. at well under 1 ohm DCR. )

So, it is thus: 2 EZ-81s, 37 mHY, 30 uF, off to output stage B+, 350 ohm R, 30 uF off to G2, and the rest of the integrated amplifier as R/C/R/C/R/C to various stages.

Whenever possible, I now AVOID any C input, even a teeinsy weeinsey one like a microfarad or so. Regards.

Jeff Medwin


This post is made possible by the generous support of people like you and our sponsors:
  Parts Connexion  


Follow Ups Full Thread
Follow Ups


You can not post to an archived thread.