Balanced Line Driver (CB6223E)

This 600-ohm line driver was found in a 1980s documentation. The integrated circuit used is not common today.

DC Motor Control (CB5376E)
This PWM control circuit was found in an old documentation, but appears elsewhere on this site...
Two Input Stereo Mixer (CB4438E)
a We find this circuit which has a traditional configuration in a 1988 publication. The circuit is...
Analog to digital converter (CB20540E)
Indicated for applications with a PC, this circuit was obtained in an English publication in 1992....