'Push button memory (CB7243E)

This circuit was found in an American documentation from 1969. The circuit memorizes when a command pulse activates the relay.

| Clique na imagem para ampliar |

Fuzz (CB6711E)
This fuzz distortion circuit was found in old RCA documentation. Equivalent transistors may be...
Dwell Meter Gauge and Tachometer (CB22529E)
This circuit with transistors of the time was found in the magazine Radio Electroinics of June of...
Magnetic Phonocaptor Preamplifier (CB16663E)
Several versions of this circuit can be found on this website. This makes use of FETs that can...