This 3-digit digital gauge was found in the July 1900 issue of Radio Electronics magazine. The circuit is based on the CA3161 and CA3162 A/D converters of the time.
This circuit generates a rectangular signal whose frequency depends on the electrolytic...
A precision 200 kHz oscillator using a 32,768 kHz. caf crystal can be built with a 4080 IC as...
We found this circuit in a 2002 documentation. The circuit must be powered by a symmetrical source...