Found in an old publication about neon lamps this circuit works directly connected to the power grid, serving as an indicator for various situations. Ordinary neon lamps can be used.
For bench use, this circuit functions as a bistable safety switch. The circuit is from a Radio...
The circuit shown is from Motorola's 1990 Linear Databook. Shaded components are optional. The...
We have here an ultra-simple amplifier stage of just one transistor, which can have some uses on...