Phase Detector 7400 (CB22427E)

This circuit detects the phase of a signal. As it is a TTL circuit, it must be powered by a voltage of 5 V.

Window Comparator 741 (CB5076E)
This conventional window comparator configuration was found in an old documentation. It is valid...
Audio Controlled Switch (CB21262E)
This sonic relay or vox was found in a Popular Electronics from the 90's. The power MOSFET can be of...
Control logic circuit (CB6547E)
This high voltage circuit was found in a 1970 documentation. The integrated one is of the time and...