With this circuit it is possible to control the intensity of a signal digitally. The circuit is from Radio Electronics from February 1981. The power supply must be 18 V.
Found in documentation from the 1980s, this amplifier uses an integrated circuit from the time....
We obtained this circuit from a 1993 documentation. The circuit has 7 current ranges that are...
This circuit was found in an 80's General Electric documentation. The circuit uses uncommon...