Schmitt Trigger 7400 (CB22419E)

This low hysteresis circuit was obtained from old documentation. The circuit must be powered by a voltage of 5 V.

3 kHz Notch Filter (CB13567E)
We found this circuit in a publication on operational amplifiers from 1978. The circuit is made...
Light intensity meter (CB7340E)
This circuit was found in a Philips documentation from 1970. The components are of the time,...
Bandpass Filter (CB6731E)
Found in a 1967 documentation this circuit can be applied to any operational amplifier. Components...