Receiver for echo sounder (CB22357E)

Found in old documentation, this circuit is the receiver for the previous circuit. Components are common nowadays.

Trigger (CB9253E)
This circuit was found in an American documentation from 1969. It serves to trigger circuits by...
Wien Bridge Oscillator (CB14117E)
The configuration presented below was obtained in the Linear Application Handbook of the National...
Cable Termination Circuit (CB21077E)
Found in an Electronic Design from the 90s, this circuit uses components from the time. It is...