This reflex receiver for the mid-wave range employs germanium transistors of the time. We found it in an English documentation from 1967.
This circuit is indicated for applications in alarms generating an intermittent high-power tone in a...
In the figure we have a three-phase AC motor control for voltages up to 600 V or 1200 V depending on...
This traditional dimmer configuration with SCRs, but with full wave control was found in a 1988...