General Information

Serial #

DC5 1208

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

WOOD CABINET; METAL, GLASS, PAPER & SYNTHETIC COMPONENT PARTS & FITTINGS. FABRIC COVERED ELECTRICAL CONNECTIONS.

Dimensions

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

Length

53.0 cm

Width

29.7 cm

Height

26.5 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Communications

Category

Radio

Sub-Category

N/A

Manufacturer

AKA

Deforest

Country

Canada

State/Province

Ontario

City

Toronto

Context

Country

Canada

State/Province

Unknown

Period

THIS TYPE OF RADIO RECEIVER USED 1926+

Canada

EARLY REGENERATIVE RADIO RECEIVER MFD IN TORONTO, ON BY DE FOREST RADIO CORP. LTD. IN 1926. (REF. 1)

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

"CROSLEY/ C5" appears in raised print on plate fixed to cabinet front. Decal applied to inside of cabinet lid reads "MANUFACTURED BY/ DE FOREST RADIO/ CORPORATION, LTD./ -TORONTO-/ PATENTED/ 1909-1914-1915-1916-1917-1918/ 1919-1920-1921-1922-1923/ LICENSED ONLY FOR/ AMATEUR, EXPERIMENTAL,/ AND ENTERTAINMENT USE/ De Forest/ TRADE MARK REG./ CROSLEY/ TRADE MARK REG." Most internal connections labelled./ Vacuum tubes (from left to right): Tube 1: "PATENTED/ RVC/ AS SET FORTH ON CARTON" printed on tube top. "RADIOTRON/ UX201-A" marked on tube base. Unidentified symbol appears on underside of tube base, in central area between pins.; Tube 2: "CHAMPION/ 201A" printed on tube top. "Champion" marked on tube base.; Tube 3: "[Cunningham logo]" printed on tube top. " ‘CUNNINGHAM'/ CX301-A" marked on tube base. "LICENSED ONLY TO EXTENT/ INDICATED ON CARTON" marked on underside of tube base.; Tube 4: "WESTINGHOUSE/ [logo]/ UX-210-A" marked on tube top.; Tube 5: "AirLine" marked on tube top. "-AIRLINE-/ -GX 201A-/ -62-5311-" marked on tube base. "LICENSED ONLY TO EXTENT/ INDICATED ON CARTON" marked on underside of tube base./ Paper label on tube sleeve reads "DO NOT REMOVE THIS LABEL/ Source.../ Approx. Hrs. Used.../ Kind of Set.../ Reason.../ 15660"; "2/2/31" handwritten on label.

Missing

UNKNOWN. From CA of 12/17/2001 by Matthew Bruce: No - appears complete

Finish

DARK WOOD CABINET. DARK BROWN SYNTHETIC KNOBS AND DIALS FITTED TO FRONT PANEL: TUNING SCALES PRINTED ON OFF-WHITE PAPER, AND FRAMED BY DULL COPPER-COLOUR PLATE. 5 GLASS VACUUM TUBES HAVE SILVERED SLEEVES. BLACK METAL CHASSIS.

Decoration

HEART-SHAPED METAL PLATE DECORATED WITH SCROLLING PATTERNS FRAMES TUNING SCALES ON CABINET FRONT PANEL.