Relay

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Ingenium, 1978.0379.001
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OBJECT TYPE
POLAR/HIGH SPEED/100+100 OHMS
DATE
1920
ARTIFACT NUMBER
1978.0379.001
MANUFACTURER
A.T.M. Co. Ltd.
MODEL
R336
LOCATION
Liverpool, England

More Information


General Information

Serial #
678
Part Number
1
Total Parts
1
AKA
N/A
Patents
N/A
General Description
WOOD BASE/ BRASS CASING, INTERNAL MECHANISM, BINDING POSTS & ADJUSTMENT KNOB/ STEEL CONTACTS/ GLASS/ BAKELITE/ WIRE.

Dimensions

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

Length
13.5 cm
Width
13.0 cm
Height
13.2 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Communications
Category
Telegraphy
Sub-Category
N/A

Manufacturer

AKA
Automatic Telephone
Country
England
State/Province
Unknown
City
Liverpool

Context

Country
Canada
State/Province
Unknown
Period
Unknown
Canada
Unknown
Function
A DEVICE WHICH OPENS OR CLOSES AN AUXILIARY CIRCUIT UNDER PREDETER- MINED ELECTRICAL CONDITIONS IN THE MAIN CIRCUIT. IT ENABLES A WEAK CURRENT TO BE STRONGER.
Technical
IMPROVED THE QUALITY & CAPACITY OF LONG DISTANCE TELEGRAPH COMMUNICATION.
Area Notes
Unknown

Details

Markings
ON BRASS CASING: 'THE/ ATM' ENCLOSED IN A CIRCLE/ 'HIGH-SPEED/ RELAY/PAT. NO. 156353/ 678'/ 'MARKING SPACING' WITH DIRECTION ARROWS OVER SIDE ADJUSTMENT KNOB. MARKINGS ARE INCISED/ '100+100/ R336' STAMPED INTO BOTTOM.
Missing
From CA of 08/09/1996 by Kevin Machan: Undetermined
Finish
VARNISHED WOOD BASE/ METAL ADJUSTMENT SCREWS PAINTED BLACK.
Decoration
BEVELLED GLASS EDGE.

CITE THIS OBJECT

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

A.T.M. Co. Ltd., Relay, circa 1920, Artifact no. 1978.0379, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1978.0379.001/

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