60 Hz Suppressor (CB6738E)

This filter is intended for 60 Hz noise suppression in amplifiers. We found it in American documentation from the 60s.

Regulator from 0 to 25 V x 1 A (CB1193E)
The advantage of this circuit lies in the fact that it does not need a negative source to generate...
Audio generator 741 (CB8643E)
This simple audio generator with the 741 was found in a 90sTexas Instruments. The circuit...
Pre For Low Impedance Microphone (CB12870E)
With this circuit from an old 1973 publication it is possible to use a small speaker as a...