This 1965 circuit consists of a small inverter for an ultraviolet lamp. The circuit is from a Motorola manual and the transformer must be wound on the core indicated in the diagram.
This circuit is from the 1960 Mullard transistor manual. The transistors are germanium from the...
This low distortion circuit was found in 80's Analog Devices documentation. The used integrated circuits...
Suggested by Raytheon in 1967 documentation this circuit uses a lightbulb and LDR optical coupler of the...