This circuit was found in the August 1992 issue of Radio Electronics magazine. The circuit can be used as an isolated shield for microcontrollers.
The circuit is from Motorola's Linear Databook from 1990, but the configuration is current because...
In the figure we have the simplest way to implement a power supply for a tunnel diode. The...
This circuit was found in documentation from the 1980s. The circuit can be implemented with other...