General Information

Serial #

N/A

Part Number

1

Total Parts

2

AKA

N/A

Patents

N/A

General Description

.1 METAL CASING; METAL, GLASS & SYNTHETIC COMPONENT PARTS. FABRIC COVERED ELECTRICAL CORD, cellulose nitrate..2 METAL LID.

Dimensions

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

Length

44.0 cm

Width

33.0 cm

Height

19.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Communications

Category

Radio

Sub-Category

N/A

Manufacturer

AKA

GRIMES

Country

Canada

State/Province

Ontario

City

Kitchener

Context

Country

Canada

State/Province

Unknown

Period

THIS TYPE OF RECEIVER USED 1927+

Canada

THIS EARLY NEUTRODYNE RECEIVER MFD IN KITCHENER, ON BY GRIMES RADIO CORP. LTD.

Function

TO DETECT AND AMPLIFY RADIO SIGNALS.

Technical

NEUTRODYNE CIRCUITS, DEV'D IN 1923, NEUTRALIZED THE PLATE-GRID CAPACITANCE THAT CAUSED SELF-OSCILLATION. MANY SMALL MFRS WERE ABLE TO PRODUCE THE EFFECTIVE, ECONOMICAL AND SIMPLE NEUTRODYNE RECEIVERS WITHOUT HAVING TO OBTAIN LICENCES FROM THE GIANT RIVALS WHO CONTROLLED MOST OTHER CIRCUIT PATENTS. (REF. 1)

Area Notes

Unknown

Details

Markings

.1 "Beverly" appears in raised print on front of cabinet. Plate inside cabinet reads "NEUTRODYNE/ TRADE MARK REG./ BATTERYLESS RADIO/ H.E.P.C. APPR. NO. 2171/ 115 VOLTS 60 CYCLE 40 WATTS/ Licensed only for the non-commercial recep/ tion of public radio telephone broadcasting by:/ CANADIAN RADIO PATENTS LTD./ PATENTED 1914-16-17-18-19-20-21-22-24-25-26/ AND UNDER HAZELTINE AND LATOUR PATENTS./ GRIMES RADIO CORPORATION LTD./ KITCHENER, ONTARIO. CANADA." Vacuum tube receptacles labelled (left to right): "UX 171/ CX 371", "UX 226/ CX 328", "UY 227/ C 327", "UX 226/ CX 326", "UX 226/ CX 326", "UX 226/ CX 326" & "UX 280/ CX 380"./ Vacuum tubes (from left to right): Tube 1: "RADIOTRON/ RVC/ UX 171A" printed on tube top. "LICENSED ONLY TO EXTENT/ INDICATED ON CARTON" appears in raised print on underside of tube base.; Tube 2: "RADIOTRON/ RVC/ UX 226" printed on tube top. "LICENSED ONLY TO EXTENT/ INDICATED ON CARTON" appears in raised print on underside of tube base.; Tube 3: "LICENSED ONLY TO EXTENT/ INDICATED ON CARTON" appears in raised print on underside of tube base.; Tube 4: "RADIOTRON/ RVC/ UX 226" printed on tube top.; Tube 5: "26/ CANADA" printed on tube sleeve. "Westinghouse/ Radiotron/ LICENSED BY THERMIONICS LTD./ PATENTED 1925-1945" printed on tube base. Paper label on tube sleeve is damaged; reads in part "Thoms[text damaged] e Limited/ 2914 Granv[text damaged] S[text damaged] [Va]ncou[ver?]/ Phone [text damaged]/ WE RECOMMEND GEN[ERAL ELECTRIC ?]"; Tube 6: "26" printed on tube sleeve. "MARCONI/ RVC/ RADIOTRON" printed on tube base.; Tube 7: "Westinghouse/ Radiotron" printed on tube base.

Missing

LID REPAINTED. TRANSFORMER REPAINTED. CHASSIS TOUCHED UP. TUBES MAY NOT BE ORIGINAL. From CA of 12/18/2001 by Matthew Bruce: No - appears complete

Finish

.1-.2 METAL CABINET & LID HAVE DARK BROWN EXTERIOR FINISH ON FINELY WRINKLE TEXTURED BASE..1 RECEIVER HAS COPPER-COLOUR PLATE FRAMING TUNING SCALE; TWO DARK BROWN MOULDED SYNTHETIC KNOBS.

Decoration

N/A