Bistable 7400 (CB22408E)

The figure shows how to connect a 7400 to obtain a bistable configuration. The circuit must be powered with 5 V.

Peak Voltage Detector (CB5157E)
We find this circuit in an old American manual from the 80's. The circuit has a memory that keeps...
High Voltage Power Supply (CB6894E)
This circuit, found in a 1982 documentation, consists of a small inverter based on a Hartley...
Polarity protector (CB23770E)
This relay circuit protects against accidental inversion of input polarity. The circuit was...