07-28-2025, 12:28 PM
OK, I've done some more tweaks and experiments and learned some more. I found that those .33 uf coupling caps from a kit are junk! I replaced them with some IC (Illinois) caps from AES and it really woke it up. I went back to 1k stoppers after some signal checks. Below is a pic of the drive to the 6V6 grids just before it distorts. This is using the 6U8a driver. It is really cleaning up and sounding much better and putting out power very close to the 1st build. I couldn't get the same coupler caps for this build as the 1st so I tried some brown dips. Nope - go with the tubulars. I'm still tweaking so stay tuned.
Signal from 6U8a
Junk parts! Well, the dips might be ok for something else, just weak couplers.
Signal from 6U8a
Junk parts! Well, the dips might be ok for something else, just weak couplers.
If I could find the place called "Somewhere", I could find "Anything"
Tim
Jesus cried out and said, "Whoever believes in me , believes not in me but in him who sent me" John 12:44
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