Cylindrical transducer part for Magnavox Radio R3-B early horn loudspeaker
Date: 1921
Inventory Number: DPWN0006a
Classification: Speaker
Subject:
Maker: Magnavox Company (1917 - 1974)
Cultural Region:
Place of Origin:
Dimensions:
70 x 35.5 x 30 cm (27 9/16 x 14 x 11 13/16 in.)
Description:
separate cylindrical transducer mounted on rectangular base with 4 black capped electrical connectors. The four terminals are labeled as follows: two are labeled "BATTERY," and the other two are labeled "INPUT." It has a metal cover over ?? nar input terminals. The horn is removable: there is a friction fit into collar on transducer; it is fabricated in three sections, with a vertically oriented right angle horn on the base.
14-in horn,
14-in horn,
In Collection(s)
Signedon rim of horn: THE MAGNAVOX CO. / REG. U.S. PAT. OFF. / OAKLAND, CALIF, U.S.A.
late on transducer casing: RADIO / MAGNAVOX / PATENTED MADE IN U.S.A. / TYPE R 3 MOD. B NO. 64830 / THE MAGNAVOX CO. / OAKLAND, CALIFORNIA.
in red on rim of transducer casing: 1922
on bottom of base: MAGNAVOX / REGISTERED U.S. PATENT OFFICE / TELEMEGAFONE Made under one or more of the following patents: JANUARY 21, 1913 FEBRUARY 3, 1920 / February 24, 1914 MARCH 2, 1920 / AUGUST 4, 1914 OCTOBER 20, 1920 / MAY 21, 1918 / CANDADIAN PATENT No. 265267, JUNE 2nd, 1922 / Other patents pending. Design patents applied for. / Patented and patent applied for in principal foreign countries. / Manufactured by / THE MAGNAVOX COMPANY / 2701-2765 EAST 14TH STREET / OAKLAND, CALIFORNIA, U.S.A.
late on transducer casing: RADIO / MAGNAVOX / PATENTED MADE IN U.S.A. / TYPE R 3 MOD. B NO. 64830 / THE MAGNAVOX CO. / OAKLAND, CALIFORNIA.
in red on rim of transducer casing: 1922
on bottom of base: MAGNAVOX / REGISTERED U.S. PATENT OFFICE / TELEMEGAFONE Made under one or more of the following patents: JANUARY 21, 1913 FEBRUARY 3, 1920 / February 24, 1914 MARCH 2, 1920 / AUGUST 4, 1914 OCTOBER 20, 1920 / MAY 21, 1918 / CANDADIAN PATENT No. 265267, JUNE 2nd, 1922 / Other patents pending. Design patents applied for. / Patented and patent applied for in principal foreign countries. / Manufactured by / THE MAGNAVOX COMPANY / 2701-2765 EAST 14TH STREET / OAKLAND, CALIFORNIA, U.S.A.
Inscribedscratched into side of transducer casing: HRM
FunctionTransduces electrical signals into sound.
