Suggested by General Electric in a 1980s publication, this circuit is intended for coupling alternating signals, with the transistor being polarized in its linear region.
This circuit was obtained from an English circuit manual. Components are common and LEDs can be 3...
Found in a 90's EDN, this circuit generates signals in the frequency range given by the graph. The...
This circuit can generate signals from 100 kHz to 1 MHz depending on the L1 coil. For the medium...