Galvanometer by Rubicon
... mirror on the galvanometer movement, and, after several reflections inside to lengthen the optical lever, falls
on the frosted-glass scale. Models with sensitivities as much as 2.5 nano-amperes ... sold for about $90 in the 50es. Canrom collection
Canrom Photovoltaics Inc.
3625 Highland Ave
, New York
phone: +1 (716) 282 2975 Shipping options to be decided ...