This circuit was found in General Electric documentation from 1964. It makes use of a PUT, called the PNPN planar key at the time. The circuit has two supply voltages.
Based on NXP 74HC logic, this circuit can be adapted for various uses. The circuit can also be...
This mixer or audio mixer uses common FETs that can be the BF245 or MPF102 and an operational...
This circuit is from a Motorola integrated circuit manual. The integrated used is no longer common...