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.
CHANDLER, Ariz., Aug. 11, 2016 — Microchip Technology Inc. (NASDAQ: MCHP), a leading provider of...
The integrated circuit used in this 1990 project is uncommon in our market, and transistors...
This small power source from a 1970s publication uses a germanium transistor. We can use a silicon...