Renseignements généraux

Nº de série

S/O

Nº de partie

1

Nombre total de parties

2

Ou

S/O

Brevets

S/O

Description générale

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

Dimensions

Remarque : Cette information reflète la taille générale pour l’entreposage et ne représente pas nécessairement les véritables dimensions de l’objet.

Longueur

44,0 cm

Largeur

33,0 cm

Hauteur

19,0 cm

Épaisseur

S/O

Poids

S/O

Diamètre

S/O

Volume

S/O

Lexique

Groupe

Communications

Catégorie

Radio

Sous-catégorie

S/O

Fabricant

Ou

GRIMES

Pays

Canada

État/province

Ontario

Ville

Kitchener

Contexte

Pays

Canada

État/province

Inconnu

Période

THIS TYPE OF RECEIVER USED 1927+

Canada

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

Fonction

TO DETECT AND AMPLIFY RADIO SIGNALS.

Technique

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)

Notes sur la région

Inconnu

Détails

Marques

.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.

Manque

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

Fini

.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.

Décoration

S/O