60 Hz Suppressor (CB6738E)

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

Noise Generator (CB7078E)
Published in Popular Electronics with the curious name of Obnoxious Noisemaker, this 1968 circuit...
RIAA Equalizer Amplifier (CB25696E)
This preamplifier circuit for turntable cartridges was found in the March 1994 issue of...
Vdeo cable driver (CB20922
E) This circuit was found in documentation from the 1980s. The integrated circuit used is not very...