Construction Details First, the DC board: DC board 1.jpg DC board 2.jpg DC board underside.jpg Diodes: Two 1N4001 or 1N4002 or a higher voltage rating. Capacitors: The small blue capacitor is a 100nF ceramic multilayer type, 5mm spacing. The large capacitor is a 2200uF 16V electrolytic. Fuse: PCB f...