2-bit decoder 7400 (CB22421E)

This circuit decodes a two-bit value into four outputs (one of four). The circuit must be powered by a voltage of 5 V.

6-LED Sequential 2 (CB20455E)
This circuit operates according to the same principle as the previous one, but it has a difference in...
Tunnel Diode Spy Transmitter 3 (CB14864E)
This transmitter emits signals in the FM range, reaching a few meters away. The modulation...
Interface with ULN2001 2002 2003 2004 (CB15486E)
The integrated circuits of the ULN2001 / 2/3/4 series also known as MC1411 / 12/13/14 consist of...