Wheatstone Bridge Electrical Test Set

Object/Artifact

-

Museum Of American Heritage

Name/Title

Wheatstone Bridge Electrical Test Set

Entry/Object ID

1000.2171.128

Description

Test Set, Electrical, Wheatstone Bridge,

Collection

Jim Adams

Made/Created

Manufacturer

Queen-Gray Co.

Date made

1916

Notes

where made: Philadelphia, PA model name: The Queen Decade Portable Testing Set model number: E 3112 serial number: 5001

Material

Wood Brass

Color

Brown

General Notes

Note

Decade resistor and Wheatstone Bridge test set. 1-10 pegs for units, tens, hundreds, and thousands. 2 push button switches, 2 knife switches. meter ranging from -15 to +15. Artifact label reads: Electrical Test Set Queen-Gray Co., Philadelphia, PA 1916 The Queen Decade Portable Testing Set was sold for precision measurements and equipment calibration. Precise resistance settings are made by moving the brass pins on the top of the set and setting the knife switches for the proper external connections.