Title: Galvanometer, universal tangent
Date: 1900 (approximate)
Original Format: photograph: negative
Description: Used at CIT in the freshman physics lab. to demonstrate the presence of electromagnetic fields. The instrument was invented in the 1830s. From Bridge Lab. of Physics. Mfg: Queen and Co., Philadelphia, PA.
Collection: Scientific Instruments
Caltech Archives ID: ST-PH-38
