Coilgun Schematic

Parts List

B1 - 9v transistor battery
C1,C2 - 12,000 microfarad electrolytic capacitor, 200 wvdc (working volts d.c.)
D1 - 800v bridge rectifier
L1 - launching coil
P1 - iron projectile
R1 - 470 ohm 1/2 watt, charging resistor
R2 - 11K ohm 1/4 watt, safety bleeder resistor
R3 - 4.7K ohm 1/4 watt, trigger resistor
S1 - 600v 20A SCR, "silicon power cube"
SW1 - momentary action pushbutton switch
T1 - transformer, 110v primary, 18v secondary