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 circuit is from an 80's publication. The basic components indicated are of the time, mainly...
This circuit, for a bulb of 6 V up to 200 mA, was found in an old Argentine publication of the...
Found in American documentation from the 90s, this circuit uses TTL technology and is therefore...