Reflecting Galvanometer

Physics

Accession Number: 2009.ph.176

Description:

A circular base with 3 height adjustable knobs at the bottom and on the bottom of the circular base there is a movable oval plastic attachment with labels “SENS.0001(“mu symbol”)A/mm”, “C.D.R.X. 19000(Ohm Symbol)”, “PERIOD 14 sec”, “RESIST 511(Ohm Symbol)”, “Cat. No. 2500 F”. On the metal base there is an etching “102811”. The base has two electrical terminals and a metal cylinder attached to it. Along the length of the cylinder there is a glass window through which a meter attached to copper wires can be seen. On top of the cylinder there is a brass knob with the following labels “Made in U.S.A”, “Zero Adjuster”, “Coil Clamp”.

Alternative Name: Type R

Primary Materials: Metal, Plastic, Glass

Markings:

On the metal base there is an etching “102811”. On top of the cylinder there is a brass knob with the following labels “Made in U.S.A”, “Zero Adjuster”, “Coil Clamp”.

Dimensions (cm): Height = 22cm, Diameter = 13cm

Function:

Condition:

Associated Instruments:

2009.ph.10; 2009.ph.177; 2009.ph.178; 2009.ph.21; 2015.ph.638; 2015.ph.664; 2015.ph.665

Manufacturer:

Leeds & Northrub Co. Philadelphia, Pennsylvania, USA.

Date of Manufacture: 20th Century?

Provenance: Collection of Dr. Martin Lee.

Historical Notes: