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 was obtained from a 1994 publication. Its purpose is to digitally switch 5 audio...
The circuit shown is from the National Semiconductor's Linear Applications Handbook. The CI is not...
In this charger, the charging current is basically limited by the LEDs. The transformer is a low...