Programmable Timer (CB25200E)

This timer has a divider programmed by BCD switches. The circuit is from a Radio Electronics magazine from February 1989.

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Basic Monostable with the 555 I (CB1295E)
This basic configuration can be found in a lot of articles on this site. In this case, the relay...
Peak Voltage Detector (CB5157E)
We find this circuit in an old American manual from the 80's. The circuit has a memory that keeps...
Three-input majority gate (CB7248E)
This interesting logic circuit was found in a manual of neon lamp applications. | Clique na imagem...