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Ericsson receiver
Ericsson receiver

Ericsson receiver

Datecirca 1879
Inventory Number8014b
ClassificationTelephone
Subject
    Maker L. M. Ericsson 1877
    User Jefferson Physical Laboratory, Harvard University founded 1884
    Cultural Region
      Place of Origin
        Dimensions14.5 × 5.8 × 5.8 cm (5 11/16 × 2 5/16 × 2 5/16 in.)
        Material
          DescriptionAn Ericsson magneto telephone receiver/transmitter made of hard rubber and nickel-plated metal, of the type known as a "butterstamp" style.

          Receiver consists of a handle, a straight-sided cylinder of hard rubber, with a metal eye-hook, and a pair of terminals or binding posts on one end and a bell-shaped mouthpiece/earpiece on the other end. The terminal end has a rounded, nickel-plated molding; the mouthpiece/earpiece end has a series of rounded nickel-plated moldings that expand into a bell shaped receiver/transmitter.

          A diaphragm covers the end of the bell, but the molded earpiece/mouthpiece is missing. There is a slotted screw head and washer visible on the handle near the diaphragm end.

          Stamped on handle, "L. M. ERICSSON & Co."

          One of a series of four similar Ericsson receivers, items 8014a-d.
          Signedon handle: L. M. ERICSSON & Co
          Inscribedon handle: [star] MADE IN STOCKHOLM BY L. M. ERICSSON & Co
          Curatorial RemarksOld tag: "No 6 Ericson [sic] 120 Jefferson Laby." reverse: "No 6"
          FunctionConversion of electric signals into sound for output by telephone
          ProvenanceJefferson Laboratory, Physics Department, Harvard University
          Ericsson receiver
          Ericsson receiver
          L. M. Ericsson
          Date: circa 1879
          Object number: 8014a
          Ericsson receiver
          Ericsson receiver
          L. M. Ericsson
          Date: circa 1879
          Accessories: Ivory signaling rattle
          Object number: 8014c
          Ericsson receiver
          Ericsson receiver
          L. M. Ericsson
          Date: circa 1879
          Object number: 8014d
          Bell hard rubber receiver/ transmitter
          Bell hard rubber receiver/ transmitter
          National Bell Telephone Company
          Date: 1879
          Object number: 8010
          Bell hard rubber receiver/ transmitter
          Bell hard rubber receiver/ transmitter
          National Bell Telephone Company
          Date: 1879
          Object number: 8011
          Dolbear condenser receiver
          Dolbear condenser receiver
          Amos E. Dolbear
          Date: 1878-1880
          Object number: 8042a
          Dolbear condenser receiver
          Dolbear condenser receiver
          Amos E. Dolbear
          Date: 1878-1880
          Object number: 8042b
          Système Kotyra receiver
          Système Kotyra receiver
          Maximilien Kotyra
          Date: circa 1879
          Object number: 8025
          Siemens and Halske receiver/transmitter
          Siemens and Halske receiver/transmitter
          Siemens, Halske & Company
          Date: 1858-1877
          Object number: 8001
          French Bell-type hard rubber receiver
          French Bell-type hard rubber receiver
          Société Française des Correspondance Téléphonique
          Date: 1880
          Object number: 8012
          Ader "bull ring" receiver
          Ader "bull ring" receiver
          Louis-Clément Breguet
          Date: circa 1881
          Object number: 8022b
          uninscribed Bell-type receiver
          uninscribed Bell-type receiver
          Jefferson Physical Laboratory, Harvard University
          Date: circa 1879
          Object number: 8013b