This amplifier was found in a 1970s documentation. Darlington transistors can be replaced for modern equivalents of at least 80 V x 2 A, equipped with good heat sinks.
In this circuit, Motorola's Linear Interface ICs, R3 is used to compensate to high source...
This powerful pushbutton uses a power MOSFET. We found it in a Popular Electronics magazine from...
This interesting circuit was presented in an article in Radio Electronics magazine in July 1979....