The Amp Garage

thanxxx to all who chimed in I reduced the problem but couldnt eliminate it so I decided to start over better luck next time? I hope. but I wanted to thank ya'll for all the help.

I just recently got brave and started building after a few franks , I built a liver pool sounds great but the first pre amp tube is miccrophonic no matter what i put in there (good tubes out of other amps ,au at ax,)if I use a 12ax the whole chassis becomes microphonic.now I am experiencing the same...