Bistable 7400 (CB22408E)

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

DTMF decoder with the 567 (CB12675E)
Another application circuit for the NE567 is shown in the figure. It consists of a decoder for...
Acoustic Remote Control (CB17667E)
In fact, this is the circuit also known as “vox”, that is, a relay triggered by sound. This...
3 to 300 Wattmeter and detector (CB3924E)
This circuit can be used with transmitters in the 3 to 30 MHz frequency range also functioning as a...