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.

Vehicle alarm (CB20627E)
This car alarm was obtained in a Signetics documentation from the 1980s. The circuit uses the 555...
Zero Frequency VCO (CB24870E)
The frequency of this circuit can be varied from zero. The circuit uses the CMOS 4046 and was...
fgtrTTL Binary Counter (CB13420E)
This simple binary counter triggers two LEDs according to the number of pulses applied to the...