Found in old American documentation, this circuit demodulates signals from 1 kHz to 10 kHz for telemetry applications using the FM band.
This circuit appears with variations in other points of this section. This version is from...
We found this circuit in a 2001 documentation. It is safe, as it uses an isolation transformer and at the...
This flasher with a small incandescent lamp was obtained in a documentation from the 80's. The...