This 1967 Electronics World circuit is suitable for frequencies up to 1 MHz. The setting applies to virtually any junction FET.
Found in an old American publication, this article is suitable for incandescent lamps. SCRs can be of...
This circuit uses a Norton operational amplifier to generate 1 kHz pulses with a 1 to 60...
This two-relay circuit gives drive logic that is clear when analyzing the circuit. In the original...