The figure shows how to use an LM3914 with a variable range moving point. The circuit has an operating point adjustment.
The circuit shown in the figure is suggested by Allegro Micro (www.allegromicro.com) and consists of...
This electronic rheostat with SCR was found in the June 1964 Radio Electronics magazine. The SCR...
Found in Radio Electronics from the 90s, this thermometer uses an integrated circuit that is...