Microphone

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TYPE D’OBJET
RIBBON/VELOCITY/TABLE
DATE
1940
NUMÉRO DE L’ARTEFACT
1984.0164.001
FABRICANT
Radio Corp. of America
MODÈLE
44B
EMPLACEMENT
United States of America

Plus d’information


Renseignements généraux

Nº de série
1094
Nº de partie
1
Nombre total de parties
1
Ou
S/O
Brevets
S/O
Description générale
CASE, STEEL BOTTOM ASSEMBLY PLATE, NON-FERROUS CAST BOTTOM SECTION, TOP, PERFORATED NON FERROUS METAL, FABRIC WIND SCREEN BEHIND PERFORATED TOP SECTION. MICROPHONE ASSEMBLY HAS A MAGNET ASSEMBLY WITH CORROGATED RIBBON MOUNTED IN THE MAGNETIC FIELD. MATCHING TRANSFORMER IS MOUNTED IN THE BOTTOM SECTION OF THE CASE. MATERIALS CONT'D: FITTED WITH VIBRATION REDUCING COLLAR TO ABSORB VIBRATION & REDUCE NOISE.

Dimensions

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

Longueur
20,1 cm
Largeur
20,1 cm
Hauteur
37,0 cm
Épaisseur
S/O
Poids
S/O
Diamètre
S/O
Volume
S/O

Lexique

Groupe
Communications
Catégorie
Son
Sous-catégorie
S/O

Fabricant

Ou
RCA
Pays
United States of America
État/province
Inconnu
Ville
Inconnu

Contexte

Pays
Amérique du Nord
État/province
Inconnu
Période
1940-1960
Canada
USED IN CANADA
Fonction
TO PICK UP SOUND, VOICE AND MUSIC AND CONVERT TO COMPLEX ALTERNATING CURRENT. THE ALTERNATING CURRENT WOULD BE AMPLIFIED TO MODULATE A TRANSMITTER OR TO DRIVE A RECORDING DEVICE. RANGE 30 TO 15000HZ.
Technique
THE RIBBON MICROPHONE WAS A DEPARTURE FROM THE USUAL DIAPHRAGM DEVICE THAT MODIFIED THE VOICE RESPONSE BY THE FREQUENCY RESPONSE OF THESTRUCTURE, AS IT CONTRIBUTED VERY LITTLE MODIFICATION TO SOUND. WAS USED IN FILM AND BROADCASTING FOR MANY YEARS. PROVIDED A VERY TIGHT BI-DIRECTIONAL PICKUP PATTERN.
Notes sur la région
Inconnu

Détails

Marques
BOTTOM OF MIKE: 'M V'/ DECAL ON MIKE: 'CBC'/ DECALS ON BASE: 'SERIAL NO/ 15.4-527/ CBC/ R[?]ADA'/ STAMPED UNDER MIKE '1094'
Manque
ADJUSTMENT NUT/ BLACK PAINT ON MICROPHONE STAND BASE BADLY CHIPPED
Fini
BOTTOM SECTION, ANTIQUE BRONZE, TOP PERFORATED SECTION CHROME PLATED OR POLISHED ALUMINUM. A BRIGHT STRAP HOLDS THE TWO SECTIONS OF THE TOP TOGETHER. THE MICROPHONE STAND BASE IS GLOSSY BLACK ENAMEL. THE SOUND ABSORBING MOUNT AND YOKE ARE CHROME AND POLISHED ALUMINUM.
Décoration
S/O

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Si vous souhaitez publier de l’information sur cet objet de collection, veuillez indiquer ce qui suit :

Radio Corp. of America, Microphone, vers 1940, Numéro de l'artefact 1984.0164, Ingenium - Musées des sciences et de l'innovation du Canada, http://collections.ingeniumcanada.org/fr/id/1984.0164.001/

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