R1 680 Ohm 1/4 Watt Resistor C1 20,000 - 50,000uF 20-40 Volt Capacitor C2, C3 100uF 50 Volt Capacitor C4 0.1uF 50 Volt Capacitor C5 0.01uF 50 Volt Capacitor D1 Zener Diode (See Notes) Q1 2N3055 Or Other (See Notes) T1 Transformer (See Notes) BR1 Bridge Rectifier (See Notes) S1 SPST 250 VAC 10 A Switch MISC Case, Line Cord, Heatsink For Q1, Binding Posts For Output