Obtained in MIT documentation, this 4-stage circuit has high gain for small signals. The power supply sources 150 V.
Figure Bellow shows how to interface CMOS circuitos with TTL using the 4049 or 4050 IC. The power...
The ESDZ series of protection diodes from STMicroelectronics can be purchased from Mouser...
This stage circuitry for amplifying microphone signals makes use of germanium transistors as indicated...