Low Current Detector (CB6667E)

This circuit is from a 1967 documentation. It makes use of varicap and diode tunnel in addition to currently uncommon FET. It serves as a reference.

| Clique na imagem para ampliar |

Bootstraped Source Follower (CB6156E)
This configuration was found in an English magazine from 1965. It is valid for any junction FET. The...
Operational Flip Flop (CB4839E)
In the figure we have a traditional flip-flop configuration implemented with two operational...
Photo Trigger Using Transistors (CB864E)
This circuit uses a photo-transistor to trigger a circuit sourcing a square signal for the output. The...