Vacuum tube

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OBJECT TYPE
MEDIUM-MU/AMPLIFIER, OSCILLATOR OR MODULATOR/AIR-CIRCULATION & RADIATION COOLED
DATE
1957
ARTIFACT NUMBER
1999.0197.001
MANUFACTURER
EITEL-MCCULLOUGH INC.
MODEL
EIMAC 750TL
LOCATION
San Carlos, California, United States of America

More Information


General Information

Serial #
IR-3395
Part Number
1
Total Parts
2
AKA
N/A
Patents
N/A
General Description
.1 GLASS & METAL TUBE..2 CARDBOARD BOX; SPUN (SYNTHETIC) FIBRE PACKING MATERIAL.

Dimensions

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

Length
40.5 cm
Width
39.5 cm
Height
64.0 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Vacuum Tubes
Category
Transmitting
Sub-Category
N/A

Manufacturer

AKA
EIMAC
Country
United States of America
State/Province
California
City
San Carlos

Context

Country
Canada
State/Province
Ontario
Period
THIS TYPE OF TUBE USED C. 1950S +. THIS TUBE USED C. 1970-1975+.
Canada
THIS TRANSMITTING TUBE WAS USED AT THE SIGNAL TRANSMISSION STATION OPERATED BY NRC AT IT'S GREENBANK ROAD, OTTAWA ON SITE.
Function
USED AS AN AMPLIFIER, OSCILLATOR OR MODULATOR POWER TRANSMITTING TUBE.
Technical
MEDIUM POWER TRIODE INTENDED FOR USE AS AN AMPLIFIER, OSCILLATOR, OR MODULATOR. IT HAS A MAXIMUM PLATE DISSIPATION RATING OF 750 WATTS ANDA MAXIMUM PLATE VOLTAGE RATING OF 10,000 VOLTS AT FREQUENCIES UP TO 40 MC. IT IS COOLED BY AIR-CIRCULATION & RADIATION. THIS TUBE WAS USED IN NRC'S TIME SIGNAL TRANSMISSION SITE ON GREENBANK RD, WHICH HAD AN OPERATING POWER OF 3000 WATTS.
Area Notes
Unknown

Details

Markings
.1 "JAN-CIM-750 TL/ [radiation symbol]/ MADE IN U.S.A./ TH 232/ 6133" & "Eimac/ 750 TL/ MADE IN U.S.A." printed in red on glass, near base. "750 TL/ USED" handwritten on box side panels; red "FRAGILE" symbol also printed on box. "Ray/ Boudreau/ M 19" handwritten in black on box top.
Missing
Box and packing material DE'd. Box was extremely acidic and disintegrating. Packing material was fusing together. See cataloguing notes.
Finish
.1 BROWN CAST TO GLASS; SILVER METAL BASE & COMPONENTS..2 BROWN CARDBOARD CONTAINER.
Decoration
N/A

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

EITEL-MCCULLOUGH INC., Vacuum tube, after 1957, Artifact no. 1999.0197, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/1999.0197.001/

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