This circuit was found in a 1968 General Electric documentation. It has an input impedance of 2 M ohms and excites a load of 16 ohms. The integrated circuit of the time is the PA237.
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...