Electronics hum alleviation procedure fig. 21

This part of the procedure is not strictly necessary as you will have bonded the screen to the foil via the jack socket in the previous photos but I did it anyway just to be sure.

 

Solder wire to circuit board as shown. Strip the insulation from the other end of wire and stick down onto cavity foil.

 

Now plug the piezos back into their sockets and put it all back together. Connect battery and enjoy your noiseless Stagg.

Done