Receiver, radio

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OBJECT TYPE
REGENERATIVE/BATTERY/TUBE/TABLE
DATE
1925
ARTIFACT NUMBER
2001.0221.001
MANUFACTURER
Canadian General Electric Co. Ltd.
MODEL
93
LOCATION
Toronto, Ontario, Canada

More Information


General Information

Serial #
4285 1875
Part Number
1
Total Parts
2
AKA
N/A
Patents
N/A
General Description
WOOD CABINET; METAL, GLASS & SYNTHETIC COMPONENT PARTS & FITTINGS. FABRIC COVERED CABLES.

Dimensions

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

Length
21.2 cm
Width
21.0 cm
Height
17.5 cm
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Communications
Category
Radio
Sub-Category
N/A

Manufacturer

AKA
General Electric
Country
Canada
State/Province
Ontario
City
Toronto

Context

Country
Canada
State/Province
Unknown
Period
THIS TYPE OF RADIO RECEIVER USED IN EARLY 1920S+
Canada
EARLY REGENERATIVE RADIO RECEIVER MADE IN TORONTO, ON BY CANADIAN GENERAL ELECTRIC CO. LTD. IN 1925.
Function
TO DETECT AND AMPLIFY RADIO SIGNALS.
Technical
REGENERATIVE RADIO RECEIVERS WERE DEVELOPED IN THE EARLY 1920S, AS AN ALTERNATIVE TO CRYSTAL SETS. REGENERATIVE SETS EMPLOYED A VACUUM TUBE TO BOTH DEMODULATE OR DETECT THE RADIO SIGNAL, AND TO PROVIDE AMPLIFICATION. CAREFUL CONTROL OF THE LEVEL OF AMPLIFICATION WAS NECESSARY TO PREVENT OSCILLATION OF THE VACUUM TUBE BUT THE RESULT WAS THAT POWER OUTPUT WAS INSUFFICIENT TO DRIVE A LOUDSPEAKER. (REF. 1)
Area Notes
Unknown

Details

Markings
.1 Decal on cabinet front reads "[CGE logo]/ REGENERATIVE RECEIVER/ PATENTED 1912-1918-1920-1921-1922-1923-1924/ LICENSED ONLY FORAMATEUR EXPERIMENTAL AND/ ENTERTAINMENT USE./ CANADIAN GENERAL ELECTRIC CO. LIMITED/ TORONTO. ONTARIO. CANADA". "CGE/ Model 93" marked on top panel. All controls, etc. including tube receptacles labelled. "4285" and "1875" stamped into underside of radio body. "+90B", "+135B", "GROUND/ -B +A", "-22 1/2C", "+C -A", "- 4 1/2C", and "+45C" stamped into connectors on cables. 1 vacuum tube marked "RVC/ PATENTED/ AS SET FORTH ON CARTON" ontube top; "RADIOTRON/ WX199" incised on tube base. 2 remaining tubes * are identical; both marked "RVC/ RADIOTRON/ WX199" on tube top; "RADIOTRON/ WX 199" incised on base.
Missing
3 TUBES IN RECEIVER ARE NOT CORRECT MODELS FOR THIS RECEIVER. VISUALLY, RECEIVER & BOX APPEAR COMPLETE. From CA of 12/20/2001 by Matthew Bruce: No - appears complete
Finish
DARK WOOD CABINET. BLACK SYNTHETIC PANEL BEARS GOLDTONE MARKINGS AND BRIGHT BRASS-COLOUR INDICATORS, CONNECTORS, ETC. BLACK MOULDED SYNTHETIC KNOBS. 3 GLASS VACUUM TUBES VISIBLE, ALL WITH SILVER GLASS SLEEVES. CABLES ARE FABRIC COVERED.
Decoration
N/A

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

Canadian General Electric Co. Ltd., Receiver, radio, 1925, Artifact no. 2001.0221, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/2001.0221.001/

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