Hughes suggests this circuit in a 1968 documentation. The circuit uses old transistors that can be replaced with equivalents. MOSFET is the critical component of the circuit.
This sophisticated comparator, which may have didactic or practical purposes, was found in a 1980s...
July 2017 - The new Schottky rectifiers from Diodes Incorporated with 5 to 40 A currents and 100...
Suitable for clandestine listening and in SMD assembly, this circuit was found in the Radio...