Black Light

This circuit is a simple ultraviolate light that can be powered by a 6 volt battery or power supply (such as the power supply on the "Circuits" page) that is capable of supplying 1 or more amps.

Schematic

PCB Layout and Parts Placement

Parts

Part Total Qty. Description Substitutions C1 1 0.0047uf Mono Capacitor C2 1 0.1uf Disc Capacitor D1, D2 2 1N4007 Diode FTB 1 Filtered Blacklight Tube IC1 1 555 Timer IC P1 1 10k Trim Pot Q1 1 TIP30 PNP Power Transistor R1 1 470 Ohm Resistor R2 1 270 Ohm Resistor S1 1 Slide Switch T1 1 Medium Yellow Inverter Transformer MISC 1 IC Socket, Heat Sink For Q1, Screw, Nut, Wire and PC Board

Notes

1. P1 changes brightness of the black light tube.
2. Transformer T1 and the blacklight tube are available from The Electronics Goldmine (see "Where To Get Parts