1 kHz low pass filter (CB7579E)

This filter can be implemented with almost any operational. The power suppply must be symmetrical.

VCO CMOS (CB15461E)
CMOS integrated circuits are sensitive to supply voltages in terms of signal propagation time....
555 Monostable with Negative Trigger and Reset (CB9420E)
This configuration was found in a 1976 documentation. Note the use of pin 4 input for reset. The...
Fault indicator (CB8381E)
This circuit was found in an American documentation from 1969. The circuit is a multi-indicator with...