AM Modulator MC1556G (CB14561E)

The presented circuit uses a component that is not very common today. We found this modulator configuration in Motorola's 1990 Linear Databook.

Light Activated AND Gate 2 (CB5318E)
This circuit can be implemented with standard photodiodes consisting of a two input optical AND gate....
Two-Digit Counter CIR25397S CB25373E (CB25373E)
This TTL counter was found in the March 1991 issue of Radio Electronics magazine. The circuit is...
Wide Dynamic Range Light Detector (CB12527E)
The circuit shown in figure uses a photodiode as a sensor element and its main feature is to have...