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.
Found in documentation from the 1970s, this circuit uses an oscillator and a display to warn of...
This circuit simulates a low-level siren and can be supplied with voltages from 5 to 15 V....
The filter shown in the figure, using only an operational amplifier, is characterized by allowing 1...