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.

Powerful FM Transmitter (CB4330E)
This circuit is from 1989 documentation. It uses the TDA2002 as a modulator and the unusual power...
Simple 555 Timer (CB3982E)
This configuration is suggested by Mullard (Philips) in an old manual of 555 integrated circuits....
CMOS Crystal Oscillator (CB25578E)
The figure shows how to use a CMOS amplifier as a crystal-controlled oscillator. The circuit is...