New D'Lite finished

[ampdoc1]

Finally got my personal D'Lite finished. Had some initial problems with the preamp tubes being very microphonic, though I tried several brands.

! finally wrapped a think rubber band around each of them and that cured the problem dead. Not sure why this works,..does this deaden the resonance of the glass?

Also, I think I have the internal gain trimmer set too high. Anyone have a suggestion as to what level there is optimum?

thanks,
ampdoc

[Structo]

Some have mentioned 25K to 35K wiper to ground for the trimmer.
The higher you set it the smoother it seems to get to a point.
The OD tone also depends on the plate voltage to the tube.

Another thing you can try for your microphonic tubes is large shrink wrap tubing.
I read about that here but haven't tried it.
Cover the top half of the tube with it and shrink it.

I enjoy the hell out of my D'Lite 44.