This power supply for those who want to feed and recover 5 ¼ floppy disks was found in the Electronics Experimenter magazine special edition of 1983.
This RS flip-flop uses two type 4N26 optical couplers and is characterized by the very high...
This flasher was found in an old Hands On, but uses common components. The optocoupler can be...
This circuit was obtained from a 1969 Electronic Design. Transistors admit modern equivalents. The frequency...