Debouncer (CB20546E)

This anti-ringing circuit was found in an English documentation from 1996. The integrated circuit is the 74LS14.

Phone amplifier stage (CB22485E)
This circuit is from a 1966 documentation. The transistor is made of germanium of the time and the...
Transistor and Diode Test (CB16879E)
This simple circuit allows testing of general-purpose diodes and rectifiers and also general...
Electronic Mousetrap (CB4450E)
This interesting circuit of a 1988 documentation consists of a mouse trap where the sensor is left to...