Circuit Project Electronic

Here is the schematic of a simple flouroscent lamp driver circuit based on two transistors.The circuit uses capacitive ballasting for driving the tube.An 8 W standard flouroscent tube can be efficiently driven using the circuit. The two transistors (2Sc 1983) with associated components forms a oscillator around 1KHz.The oscillator is wired so that saturation condition [...]

This is the schematic of an electronic ballast model 234SLESW designed for running a pair of 4 foot T8 or T12 fluorescent bulbs. It claims to have an Energy Star rating when used with F32T8 bulbs. I picked one of these out of a dumpster and it was broken so I had to draw up [...]

Here is the schematic of another fluorescent ballast circuit from a lamp I acquired along with the 80W electronic ballast. It actually contains a pair of the circuit in the diagram, one for each bulb. The ballast itself is unlabeled, but the chassis sticker calls for 25, 32, or 40 Watt 48″ type T12 bulbs. [...]