mrED wrote:I just picked up an ST70 with an after market driver board. Look like tubes4hifi after a little internet surf.
It hums a bit more than I can handle.
Any tips on logical trouble shooting steps? I am not a super technician by any means, but can muddle thru with some coaching.
Thanks!
Is it humming without anything connected to the inputs? Many times the hum can be coming in on the input cabes from the source or even the jacks because of light corrosion or poor internal connection. First thing to do is rule that out by shorting the input jacks with a paperclip on the end of the cables or the jack itself.
Headed for Tishomingo to sing in a can...