In article t, msg wrote:
David Nebenzahl wrote:

I have an old galvanometer (nice Weston in a slant-front black crackle
case). Its scale reads 30-0-30. What units are these? Or are they just
relative values for comparison?



When you said 'galvanometer', I immediately expected you to be talking
about a 'mirror galvanometer': a large sensitive laboratory instrument
rather than an ordinary moving coil meter, which of course is
also a 'galvanometer' but is not commonly (at least in the US) labeled
as such.

Michael


I also though of a sensitive current or sensitive votmeter. I actually though of a static vane
type, but there is also the iron vane galvanometer. The key was the center scale 0.

greg