08-17-2014, 10:34 PM
It is not the meter, it is a lamp.
As for the meter , it is a simple version of Darsonval/weston galvanometer (as in regular arrow analog meter) attached to a vane that shades the lamp behind it shining through a small opening. Depending on the current (in AVC circuit) the vane rotates making the shade narrow or wide.
As for the meter , it is a simple version of Darsonval/weston galvanometer (as in regular arrow analog meter) attached to a vane that shades the lamp behind it shining through a small opening. Depending on the current (in AVC circuit) the vane rotates making the shade narrow or wide.