This is the basic full-scale circuit of an LM3914 for voltage measurement or voltage triggering and control. The power supply must be within the indicated range.
This circuit, suggested by the Linear Applications Handbook of National Semiconductor, uses a very...
Found in a 1978 publication, this circuit uses germanium transistors and drives a small 20 to 50...
This simple indicator was found in a 1980s American documentation. The circuit uses an operating system...