Three-Way Switch (IP053E)

Here we show how 3 switches can control independently one load, a lamp for instance. The lamp can be turned on or of using any of the three switches.

Electronic Dice (CB4366E)
This circuit was obtained from an English magazine from 1977. The magazine no longer exists, but...
TTL to MOS Converter (CB5106E)
This circuit can be used as a shield for microcontrollers. The circuit is from American...
Transistor Bargraph (CB892E)
This circuit is na analog display of LEDs, operating from a voltage signal applied to mits input....