This reflex receiver for the mid-wave range employs germanium transistors of the time. We found it in an English documentation from 1967.
Obtained from a 1969 neon lamp documentation, this circuit shows how to assemble an indicated...
This fast circuit was found in an ancient American documentation. Output conversion speed is 30 ns and...
This simple circuit can drive a reed-relay when light falls onto the photo-transistor. The...