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.
We found this small amplifier in a 1973 technical publication. The critical components are the...
The circuit shown in the figure makes use of a programmable unijunction transistor of type BRY39...
This common 555 circuit was found in documentation from the 90s. The circuit uses two 555s and the...