Sounder

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OBJECT TYPE: 20 OHMS/miniature
DATE: 1900
ARTIFACT NUMBER: 2009.0380.001

MANUFACTURER: Bunnell, J.H. & Co.
MODEL: 20
LOCATION: New York, New York, United States of America

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: secret sounder
Patents: N/A
General Description: Dark brown/black moulded synthetic casing and membrane; metal [possibly brass] contacts and minor fittings.

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: 6.5 cm
Width: 6.5 cm
Height: 3.5 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Communications
Category: Telegraphy
Sub-Category: N/A

Manufacturer

AKA: Bunnell
Country: United States of America
State/Province: New York
City: New York

Context

Country: Canada
State/Province: Unknown
Period: This type of sounder used c. 1900 +
Canada: This sounder belonged to Gordon S. Bennett, telegraph operator and later radio broadcast superintendent for the Canadian Pacific Railway.
Function: Converts electromagnetic code impulses into sound. This type is used in a noisy environment, or when secrecy is desired.
Technical: Held against the operator's ear by a head band, secret sounders were used in noisy places like busy telegraph offices, press rooms, or sports events or in situations where secrecy or silence were desired. Essentially a miniature version of the conventional telegraph sounder enclosed in a earpiece that is normally attached to a head band.
Area Notes: Unknown

Details

Markings: "J.H. BUNNELL & CO./ N.Y., U.S.A." and "20" stamped into casing back.
Missing: Missing head band mounting.
Finish: Dark brown/black moulded synthetic casing and membrane; metal [possibly brass] contacts and minor fittings.
Decoration: N/A

CITE THIS OBJECT

If you choose to share our information about this collection object, please cite:

Bunnell, J.H. & Co., Sounder, circa 1900, Artifact no. 2009.0380, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2009.0380.001/

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