Touch Switch (CB6449E)

This resistive sensor was found in a 1969 US documentation. The circuit uses transistors of the time, but current equivalents can be employed.

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10-minute timer (CB20361E)
We found this conventional circuit with the 555 in a documentation from the 70s. Several similar or...
Tesla Coil (CB26185E)
This circuit is one of many that we have in our section. It was taken from the Electronics...
Photoelectric Relay (CB18949E)
This circuit controls a relay from the light incident on a sensor. The sensor is an LDR and the...