Bistable 7400 (CB22408E)

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

Continuity tester (CB9326E)
This circuit was obtained in an Electronics Now from the 90s. The circuit uses operational...
Physiotherapy Ultrasound (CB16841E)
This circuit operates at a frequency around 1 MHz, having been found in a technical documentation from...
Integrated Transmitter without Coil (CB14821E)
The TAA131 used in this circuit is not very easy to find today, but an equivalent low power audio...