We found this receiver on a single chip in the 1976 Siemens integrated circuits manual. The circuit is of the super heterodyne type using ceramic filter in the IF.
This dynamic mixer allows for smooth adjustment of the signal's passage from one channel to...
Using this circuit a low current switch can be used in the control of heavy duty loads, powered...
We found this circuit in an old American documentation for hams. The circuit serves as a telegraph...