Schmitt trigger with programmable hysteresis (CB10111E)

This circuit was found in an American documentation from the 70s. The operational amplifier is from that time. Modern equivalents can be used.

| Clique na imagem para ampliar |

Receiver for echo sounder (CB22357E)
Found in old documentation, this circuit is the receiver for the previous circuit. Components are...
XTAL Low Frequency Stable Oscillator (CB14152E)
We found this circuit in the 1994 Linear Applications Handbook by National Semiconductor. The...
8-Channel Switch (CB24698E)
This circuit switches the capacitors of a digital filter with the 4046 IC (PLL). The circuit was...