Found in a 1967 General Electric SCR manual, this circuit triggers in case of excess current, causing the fuse to blow or a circuit breaker to open. The components are from the era.
This transmitter has a few watts of output power, having been found in a 1997 documentation. L1...
This circuit, from a 1975 technical documentation provides a gain of 14 dB at signals from 500 kHz to...
Found in a 1964 Electronic Design this circuit compares two signals by providing the inverse of the...