|20W Class-A Amplifier Power Supply PCB 
Power supply circuit board for the 20W Class A Amplifier.
This is the revised version with provision for chokes to reduce transformer buzz, as described in the April 2011 issue. However they can be replaced with wire links if they are not needed. Thus the board replaces the original which was coded 01105073 and was approximately the same size.
Double-sided PCB with plated through holes, solder mask and silkscreen overlay.
157 x 73mm.