100 V x 250 mA switched converter (CB9961E)

This circuit was found in a 1970s documentation. The components are from that time, and semiconductors are difficult to obtain today.

| Clique na imagem para ampliar |

Pulse Counter (CB18676E)
This digital pulse counter offers an LED indication. Its maximum frequency is of the order of 5...
Dual control with SCR (CB7223E)
This 1960s Signalite circuit uses two SCRs to achieve full wave control. The trigger elements are...
Crystal oscillator up to 10 kHz (CB9500E)
This circuit was obtained from a Popular Electronics. The component is a UJT. The circuit has an...