Component List

Resistors

(All 0.25 W, 5%)

R1 = 1 kΩ

R2, R4 = 2.2 kΩ

R3 = 47 kΩ trimmer

R5 =  4.7 kΩ

VR1 = varistor, 45 V rms

Capacitors

C1 = 1,000 µF, 35 V, electrolytic, radial

C2 = 470 µF, 35 V, electrolytic, radial

C3 = 220 µF, 35 V, electrolytic, radial

C4 = 100 nF, 63 V, polyester

Inductors

L1 = 15 µH, 4 A, axial mount

L2 = 220 µH, 3 A, toroidal, vertical mount

Semiconductors

D1 = 6A60

D2 = MBR760, fast-recovery Schottky diode

LED1 = LED, red, 3 mm

U1 = LM2576-ADJ, TO-220

Miscellaneous

2× 2-pole screw terminal block, 5 mm pitch

5×20 Fuse, 3AT, with PCB fuse holder

32×35×20 mm TO-220 Heat