555 Timer Projects

Articles Written 18

An Isolated Power MOSFET Switch

I volunteered to design a simple and inexpensive isolated power mosfet switch to control some electric loads by a ‘pulsed’ low-voltage input signal. There are of course superb solid state relays (SSRs) that we could […]

Simple Neon Glow Bulb Tester

Neon glow bulb is a nostalgic decorate lamp everybody seems to love. A small version is used still mainly as neon indicator light, also called pilot light, in electric/electronic instruments and appliances as a neon […]