This circuit can be used as an answering password system in a store, office, or other location. The circuit is from Intersil using components of the time. The circuit is from the 80's.
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...