Circuit diagrams and schematics - Electronic projects

This circuit came from a 14 Watt Commercial Electric spiral bulb from Home Depot. It is very similar to a 16 Watt circuit on repairfaq.org. In fact, I drew it in that way because it was layed out very well, so much credit should go to Sam Goldwasser. As the power comes in, it is [...]

This is a low-cost project for 20 or 40 watt fluorescent tubes. However the most efficient is to use a 40 watt tube (or two 20 watt tubes in series). It’s a circuit you can put together from junk box components or build from a kit. It’s very simple to build and requires no printed [...]

Driving a fluorescent tube, Simple conventional lamp ballast, The starter triggers the tube when it is first turned on. It consists of two contact strips, one normal and one bimetallic, which are normally open, enclosed in a glass envelope filled with inert gas, Electronic ballasts, Voltage fed half-bridge quasi-resonant lamp ballast, Start-up of the voltage [...]