Strobe Light

Disco anyone? Actually, this strobe serves a much more useful purpose then making it look cool when you dance in the dark. You can use it to view fast moving objects, look for craks in PC boards (hold the strobe on the trace side of the board and look from the component side), and it is a great attention getter in a store window.

DANGER: HIGH VOLTAGE DANGER: HIGH VOLTAGE DANGER: HIGH VOLTAGE DANGER: HIGH VOLTAGE DANGER: HIGH VOLTAGE

Schematic

This is the schematic of the strobe light

Parts

R1__________10 Meg, 1/4 Watt Resistor
D1,D2_______1N4003 Silicon Diode
C1,C2,______10 uf 350V Capacitor
C3__________.1uf 400 Volt Mylar Capacitor
T1__________4KV Trigger Transformer (see "Notes")
FT__________Flash Tube (see "Notes")
L1__________Neon Bulb
Q1__________106 SCR
S1__________115V 1A SPST Switch
MISC________Case, Wire, Line Cord.

Notes

1. T1 and FT are available from The Electronics Goldmine

2. This ciruits is NOT isolated from ground. Use caution when operating without a case. A case is required for normal operation. Do not touch any part of the circuit with the case open or not installed.

3. Most any doides rated at greater then 250 volts at 1 amp can be used instead of the 1N4003's.