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 circuit is used to block infrasonic signals in sound systems. The LM833 operating system is...
This oscillator for the fifth overtone of a crystal was found in a Radio Electronics magazine from...
We found the circuit of this Japanese transistorized commercial receiver in a documentation from...