The figure shows how to use the LM3914 bargraph with expanded scale. The circuit has two adjustments determining the extremes of the LED excitation scale.
We found this circuit in documentation from Ferranti from 1968. The circuit uses transistors from that...
This RF circuit measures transmission power from 0.25 W to 10 W. The maximum frequency depends on...
The sensors in this circuit are NTCs and PTCs that work in a differential way by directly...