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 CMOS Flasher was found in a Popular Electronics from 1978. It can still be easily assembled, as all...
This circuit was found in an old manual of linear integrated circuits of the 80's. Equivalent...
With this circuit you can control up to 3 A of LEDs in different sequences, using a PWM...