This circuit uses a resonant reed relay to recognize the frequency of an input signal. Adaptations can be made to obtain functioning as a shield. The circuit is from 1965 documentation.
This General Electric circuit was published in 1970. The LED is infrared and the voltage according...
This circuit sources a ramp signal with characteristic given by the diac. The circuit is powered...
September 2016 - Mouser Electronics is providing the new LDO voltage regulators from...