Basic Latch (CB7981E)

This circuit can be applied to several logics. The circuit is from an Electronics Now from the 90s, using two push-buttons.

Functional Timer (CB4422E)
We found this circuit in a 1992 publication, but for the components it uses, its assembly can...
Tunnel Diode Audio Amplifier (CB13337E)
We found this interesting configuration in a 1976 technical documentation. Equivalent diodes can...
Perforated tape reader (CB8032E)
The original application of this 1967 Ferranti circuit can be changed so that it functions as a pass...