This circuit can generate signals up to 100 kHz. Found in documentation from the 1980s, it makes use of operatives of the time.
This is a commercial circuit of a transistor amplifier of some watts with the OC30 transistor. The 12 V...
With this circuit it is possible to excite direct current relays from an alternating signal,...
The reference source for this circuit is a 1968’s Motorola publication. The circuit can be...