This circuit for currents from 500 mA to 1.5 A was found on a Ham Radio from the 90s. R4 determines the current in the load under test. Transistors must be equipped with radiators.
This amplifier was found in a Maxim documentation from the 90's. The circuit is an inverter type with...
This circuit works with practically any tunnel diode, transmitting signals in the FM range with a...
This circuit is suggested by National Semiconductor in its 1994 Linear Applications Handbook. The...