Amplifier

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OBJECT TYPE
N/A
DATE
1952
ARTIFACT NUMBER
2018.0237.001
MANUFACTURER
Unknown
MODEL
Home built
LOCATION
Unknown

More Information


General Information

Serial #
N/A
Part Number
1
Total Parts
1
AKA
N/A
Patents
N/A
General Description
An object made with metal and synthetic elements/Un objet fait avec du matériel en métal et synthétique.

Dimensions

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

Length
22.0 cm
Width
29.5 cm
Height
9.5 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Communications
Category
Television
Sub-Category
N/A

Manufacturer

AKA
Unknown
Country
Unknown
State/Province
Unknown
City
Unknown

Context

Country
Canada
State/Province
Ontario
Period
Unknown
Canada
This artifact represents the development of one of Canada’s earliest commercial cable television systems because of Edwin R. Jarmain. In 1952, he successfully established an experimental cable operation in London, Ontario. He increased reliable access to over-the-air television by erecting a large rhombic antenna, and then transmitting—via cable. The rhombic antenna could pull down a stronger signal and provide a much more reliable television service. By 1974, service had expanded to 100,000 homes in Ontario, prompting Jarmain and his sons to go public as Canadian Cablesystems Inc. The company was bought out by Rogers Communications in 1979. In 2011, Jarmain was inducted into Canada's Telecommunications Hall of Fame as “the acknowledged father and pioneer of cable television in Canada.” L’objet représente le développement d’un des plus jeunes systèmes de télévision a câble au Canada grâce Edwin R. Jarmain. En 1952 il a établi un système prototype d'opération de câble à London, Ontario. Il a augmenté l’accès à la télévision en directe en construisant une antenne rhombique et en transmissent via câble. L'antenne pouvait tirer un signal plus fiable qui était plus fort et favorable pour les services de télévision. En 1974 le service a grossi à 100,000 maisons et Jarmain a pris la décision d'aller public avec le nom Canadian Cablesystems Inc. La compagnie a été achetée par Rogers Communications en 1979. En 2011 Jarmain a été intronisée au Temple de la Renommée pour les Télécommunications du Canada et a été reconnu comme le père et pionnier de la télévision a câble au Canada.
Function
This artifact is used to amplify a television signal along a main cable distribution line. It does this by accepting a signal through an input and then outputs the same signal at a higher amplitude in order to adjust for a loss of amplitude as the signal passes along a distribution line. L'objet est utilisé pour amplifier les signaux de télévision sur une ligne de distribution a câble. L'objet accompli cette tâche en acceptant un signal à sa porte d'entrée et en augmentant l'amplitude du même signal à sa sortie. Ceci fait en sorte que l'objet peut compenser pour la perte d'amplitude du signal pendant qu'il voyage le long de la ligne de distribution a câble.
Technical
This artifact is recognized as one of the first distributed amplifiers developed specifically for cable TV. It was eventually replaced with solid-state amplifiers that were more reliable than tube-based amplifiers, particularly in inclement weather conditions. L’objet est connu comme un des tout premier amplificateurs distributeurs qui était développée pour la télévision a câble. Il a fini par être remplacé par des amplificateurs a semi-conducteurs qui était plus fiable que les amplificateurs à tuyau. Les amplificateurs à tuyau avaient une tendance à diminuer leur performance pendant des températures moins favorables et donc le changement c'est fait pour un amplificateur semi-conducteur.
Area Notes
Unknown

Details

Markings
On the top of the cylinders /Sur le dessus des :"Elco".
Missing
None apparent/L'objet a toutes ces pièces.
Finish
Five metal cylinders sit on a rectangular metal base. Two black synthetic cables extend from one side of the artifact while one black synthetic cable extends from the other. The cables come equipped with metal plug accessories. A maker's mark is written on the top of the cylinders. Cinq cylindres métalliques sont assises sur une base rectangulaire. Deux câbles synthétiques noirs ressortent d'un côté de l'objet pendant qu'un autre câble synthétique de la même couleur ressort de l'autre côté. Les câbles sont équipés avec des fiches métalliques sur leur bout. Un nom du fabricateur est visible sur le dessous des cylindres.
Decoration
N/A

CITE THIS OBJECT

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

Unknown Manufacturer, Amplifier, circa 1952, Artifact no. 2018.0237, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2018.0237.001/

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