This digital to analog converter circuit can use any digital switch IC. The circuit is from a July 1991 Radio Electronics magazine.
This automotive circuit was obtained from an 80's schematic from the integrated circuit factory...
June 2017 - Kemet T521's new high voltage capacitors with capacitances up to 330 uF and voltages...
We found this configuration in a documentation for radio amateurs from 1974. The circuit can be...