Bistable 7400 (CB22408E)

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

Contactless temperature sensor (CB7109E)
Found in an American documentation from 1968, this circuit senses the temperature through an...
High gain inverter amplifier (CB4953E)
In the figure we have an amplifier configuration found in an 80's documentation. The power supply is...
Spark Gap Transmitter C (CB25005E)
Found in an old publication, this is a transmitter with a spark coil. The high frequency...