The figure shows how to use an 8080 in a digital to analog converter. The circuit is from a Radio Electronics from February 1978. The other components are from that time, except for the TTL.
This is the well-known lightning lamp that was published in the March 1988 issue of Saber...
The CMOS 4046 integrated circuit is seldom used, both due to the difficulty of finding it and the...
What this circuit does is to detect when a signal reaches a certain value determined by the two...