4093 Sine Square Converter (CB26335E)

Found in a Popular Electronics from the 90s, this circuit operates up to about 5 MHz input.

Horn (CB18961E)
This circuit can also be used as a shield if the excitation is made with 5 V and the output stage...
Circuit with sensor (CB7104E)
This type of sensor was used in sensitive infrared systems from the 1960s. This circuit was found...
VCO with a Frequency Range of 100: 1 (CB1545E )
We find this circuit in a documentation for engineers from 1971. The circuit generates rectangular and...