High impedante circuit for sensor (CB20542E)

This circuit for PC and which can also be used with microcontrollers was found in an English documentation from 1992. A font must be symmetrical.

MC1374 Modulator (CB5263E)
This modulator for analog video signals was found in a 1980s Motorola documentation. The circuit...
PWM Motor Control for 3 to 12 V (CB899E)
This circuit can control the speed of Motors up to 2 A and voltages in the range between 3 and 12...
Analog to digital converter (CB20540E)
Indicated for applications with a PC, this circuit was obtained in an English publication in 1992....