LT123 Low Voltage Linear Regulator (CB4399E)

The circuit presented is from the 1993 Linear Technology Applications. The components used were common at the time.

Pulse extender (CB7255E)
This logic gate that increases the duration of input pulses was found in a NASA documentation from 1966....
LM741 Second-Order Low-Pass Filter (CB25931E)
This circuit was found in the May 1989 issue of Radio Electronics magazine. The components can be...
Capacitive Alarm (CB5059E)
We found this circuit in an American 1980s documentation. The circuit can be easily assembled in our...