Power supply for old Disc Driver (CB26194E)

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.

| Clique na imagem para ampliar |

Capacitor Test (CB12270E)
We found this circuit in a 1978 publication. The diodes can be 1N4002 or 1N4004 and the secondary of...
Very Slow Astable (CB19410E)
We found this circuit in a publication from the 1980s. Transistors are high voltage types of the...
Audio Oscillator with Magnetic Phone (CB19578E)
In this circuit of an American publication from the 1980s, the frequency of oscillations is...