Key, telegraph

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Ingenium, 1978.0487.001
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OBJECT TYPE: SEMI-AUTOMATIC
DATE: 1935–1945
ARTIFACT NUMBER: 1978.0487.001

MANUFACTURER: MCELROY, THEODORE R.
MODEL: MAC
LOCATION: Boston, Massachusetts, United States of America

More Information

General Information

Serial #: 5159
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: CAST IRON BASE & SUPPORTS/ STEEL & NICKEL PLATED STEEL MECHANISM/ EBONITE OPERATING DISC.

Dimensions

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

Length: 19.0 cm
Width: 10.0 cm
Height: 7.6 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

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

Manufacturer

AKA: MCELROY
Country: United States of America
State/Province: Massachusetts
City: Boston

Context

Country: North America
State/Province: Unknown
Period: C. 1935 TO 1965
Canada: USED IN CANADA BY TELEGRAPHERS OR AMATEUR RADIO OPERATORS.
Function: A DEVICE FOR OPENING OR CLOSING AN ELECTRIC CIRCUIT TO TRANSMIT MESSAGES, AUTOMATICALLY, THEREBY INCREASING SENDING SPEED.
Technical: DESIGN CHANGED TO BETTER FACILITATE THE OPERATOR, RESULTING IN GREATER SPEED.
Area Notes: Unknown

Details

Markings: ON MANUFACTURER'S PLATE: 'RADIO TELEGRAPH TRANSMITTING KEY/ (STANDARD MODEL MAC KEY)/ MFD. BY/ THEODORE R. MCELROY/ WORLD'S CHAMPION RADIO TELEGRAPHER/ BOSTON, MASS. U.S.A./ SPEED KEY SERIAL NO. 5159'. INCISED MARKINGS
Missing: CONNECTING CABLE OR CORD & BAKELITE OPERATING PADDLE. From CA of 09/18/1996 by Kevin Machan: Undetermined
Finish: CRINKLE BLACK FINISH ON BASE.
Decoration: N/A

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

MCELROY, THEODORE R., Key, telegraph, circa 1935–1945, Artifact no. 1978.0487, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1978.0487.001/

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