Binary demonstrator (CB22148E)

This circuit serves as a binary demonstrator using 3 LEDs. The circuit can be scaled up for a higher count.

12 W amplifier with TDA1910 and Delayed Muting (CB15232E)
This circuit has the muting action delayed by the action of C5. The circuit is from the SGS linear...
Frequency standard (CB23580E)
This circuit was found in the November 1959 Radio Electronics magazine; The circuit generates a...
Smoke detector (CB10114E)
The integrated circuit used in this detector is uncommon today. We found it in a documentation from the...