This receiver for frequencies up to 18 MHz was found in American documentation from the 1990s. Data for coil winding is aggregated.
We found this circuit in an old documentation from the 70s. The sensor is an LDR that must be...
This circuit with junction field effect transistors was found in documentation from the 1980s. The...
Common general purpose silicon diodes when direct biased provide a voltage fall of about 0.6 to...