This circuit was found in a 1965 Electronic Design. The transistors are of the time, but the circuit applies to modern equivalent transistors.
This circuit is from a manual of JFETs and can be implemented with the BF245 and for the bipolar...
Using a CA3030, this circuit was found in the May 1988 Radio Electronics magazine. The power...
This circuit is from a 1976 application. The circuit transfers DC signals with total isolation and can be...