Receiver, radio

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Ingenium, 2001.0344.001
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OBJECT TYPE: TRF/BATTERY/TUBE/TABLE
DATE: 1925
ARTIFACT NUMBER: 2001.0344.001

MANUFACTURER: Unknown
MODEL: MACLEOD DE2
LOCATION: Unknown

More Information

General Information

Serial #: 1068
Part Number: 1
Total Parts: 2
AKA: N/A
Patents: N/A
General Description: .1 WOOD CABINET; METAL, GLASS & SYNTHETIC COMPONENT PARTS & FITTINGS, FABRIC SPEAKER GRILL CLOTH..2 WOOD PANEL HAS METAL FITTINGS ON EITHER SHORT SIDE EDGE.

Dimensions

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

Length: 63.0 cm
Width: 35.0 cm
Height: 43.0 cm
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

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

Manufacturer

AKA: Unknown
Country: Unknown
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Manitoba
Period: THIS TYPE OF RECEIVER USED 1925+
Canada: EARLY TUNED RADIO FREQUENCY RECEIVER MADE FOR & DISTRIBUTED BY MACLEOD'S LTD., WINNIPEG MB IN 1925.
Function: TO DETECT AND AMPLIFY RADIO SIGNALS.
Technical: TUNED RADIO FREQUENCY (TRF) RECEIVERS USE ONE OR MORE STAGES OF RADIO FREQUENCY AMPLIFICATION BEFORE A SEPARATE DETECTOR STAGE: EACH STAGE HAS TO BE SEPARATELY TUNED. THROUGH REQUIRING MULTIPLE TUNING CONTROLS AND A RELATIVELY LARGE NUMBER OF EXPENSIVE VACUUM TUBES, TRFS WERE MORE SELECTIVE, MORE SENSITIVE & LOUDER THAN COMPETING REGENERATIVE RECEIVERS. (REF. 1)
Area Notes: Unknown

Details

Markings: .1 "MACLEOD'S/ LIMITED/ WINNIPEG" marked in upper right of cabinet front. All controls, etc. labelled. "MODEL DE2/ 1068" marked on chassis top, inside cabinet. All connections, etc. labelled. "[directional arrow] UP" handwritten on wooden frame supporting fabric speaker cloth, inside cabinet. Both tubes located closest to control panel, and tubes (2) in centre and extreme right of 2nd row marked "MADE IN/ CANADA/ O1A" onsleeve; "[GE logo]/ GENERAL ELECTRIC/ RADIOTRON" marked on tube base. Remaining tube marked "CANADIAN/ WESTINGHOUSE/ 201-1" on tube top..2 No markings visible.
Missing: UNKNOWN. CABINET HAS BEEN REFINISHED. From CA of 12/18/2001 by Matthew Bruce: No - appears complete - goes with .077 speaker; News brief re: alien attack on school (and info on non-related radio) found inside
Finish: .1 DARK WOOD CABINET HAS BLACK SYNTHETIC PANEL IN UPPER FRONT; GOLD & BROWN WOVEN FABRIC SPEAKER GRILL COVER ON FRONT BOTTOM. UPPER CONTROL PANEL FITTED WITH BLACK MOULDED SYNTHETIC KNOBS. SILVER METAL FITTINGS INCLUDE SLIDE FOR CABINET LID, HINGE, INTERNAL CONTACT POST, ETC. VACUUM TUBES HAVE SILVERED SLEEVES; MOUNTED ON BLACK SYNTHETIC CHASSIS..2 DARK WOOD PANEL HAS SILVER METAL FITTINGS ON EITHER END.
Decoration: N/A

CITE THIS OBJECT

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

Unknown Manufacturer, Receiver, radio, 1925, Artifact no. 2001.0344, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/2001.0344.001/

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