Found in documentation from the 90s, this circuit triggers a relay with inductive signals applied to a link. The sensitivity depends on the frequency and the power supply depends on the relay used.
The purpose of this circuit is to increase the selectivity of receivers with ferrite antennas. The circuit...
This solid-state relay circuit (SSR) or shield is from a 1995 Electronics Now. With it we can...
We show a channel of a simple preamplifier for ceramic capsules. This circuit is based on a very...