This digital to analog converter circuit was found in the March 1980 Radio Electronics magazine. The power supply should be symmetrical, and the digital controls can be TTL.
This circuit was found in an ancient American documentation. The transformer is the type used in...
We found this circuit in a Poptronics of the 90s. The circuit operates from 100 kHz to 30 MHz and...
The circuit shown is from the SGS manual of linear integrated circuits of 1982. The L78xx is...