Using 4 tubes, this 1924 receiver combines new technologies as an intermediate frequency stage that was already beginning to appear. Listening is via phone and battery power.
This circuit with the DCP010512 was found in the August 1998 issue of Electronics Now. The...
We found this circuit in a 1988 documentation. It is a protective system that automatically shuts...
Activating a relay from pulses (from a monostable, for example) can be useful in many types of...