Tone Oscillator (CB22066E)

Found in old documentation, this oscillator with the LM380 produces an audio tone in a speaker. Frequency is set in VR1.

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...