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Need Model Number Silvertone Neutrodyne 5-tube 1920s radio

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    Posted 10 years ago

    Robert_A
    (1 item)

    I need a schematic and owners manual (if available) for a Silvertone Neutrodyne 1920s 5-tube battery radio.

    I NEED THE MODEL NUMBER of this radio to order a schematic –
    I cannot find the model number on the radio.

    My radio has five Silvertone 201-A tubes.

    I can send photos if you give me your e-mail address.
    The radio is in truly excellent condition from an appearance standpoint.

    FRONT PANEL CONTROLS:
    Three large knobs, marked Tuning Dial 1, Tuning Dial 2 and Tuning Dial 3 – each marked with an ark 180 degrees over the top of each knob, with numbers 0 to 100.
    These large tuning knobs all rotate large air variable tuning capacitors.

    At the lower left is a small knob marked Control 3, which turns a rheostat,
    At the upper right is a small knob labeled Control 2 which turns a rheostat,
    And the lower right is a small double knob labeled Control 1, which turns a rheostat – there is a smaller knob inside the larger one

    THE WHITE PAPER LABEL INSIDE, ON THE BACK WALL
    At the left side of the label is a diagram showing Aerial and Ground connections on the chassis
    At the center of the label, it shows three batteries in a row: “A” battery 6 volts, “B” Battery 45 volts and “B” Battery 45 volts
    It shows color coded wiring from the batteries to terminals on the chassis, which are labeled from left to right: A Battery, A Battery, B Battery + 45 V
    and B Battery + 90V

    The Neutrodyne label reads: Licensed by Independent Radio Manufacturers Inc.
    U.S. Pat Off Pat March 27, 1923, April 1, 1924 and April 14, 1925 Other patents pending

    (at the far right of the label) it says Wiring Diagram for Silvertone Neutrodyne
    (at right it shows the wiring) To Loudspeaker

    METAL PLATE ON THE CHASSIS:
    Licensed
    Independent Radio Manufacturers Inc.
    Pat Mar. 27, 1923, April 1, 1924 & April 14, 1925
    Hazeltine Pats No 1450080, 1489228 and 1533858
    Other Pats Pending
    Made Exclusively For
    Sears Roebuck & Co
    Serial No B7108

    If you cannot identify this radio, can you recommend someone I should contact for the Model Number ?

    Thanks a million

    Bob Haynes

    Unsolved Mystery

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    Comments

    1. Gary1902, 10 years ago
      thoses tubes come in long pins and shot pins i know that much about the tubes and thats all lol...my raido has the same tubes all the tubes do is boost the wave sounds, the way it was told to me ..see them on ebay all the time..
    2. Gary1902, 10 years ago
      you might try oldradiodoc@snet.net ...i am waiting to hear back from him myself
    3. Bobber57 Bobber57, 9 years ago
      It is a Silvertone IV (4).
      http://www.radiomuseum.org/r/sears_roeb_silvertone_neutrodyne_model_iv.html
    4. sweigner, 4 years ago
      I have that same radio and I too am trying to find a schematic. So far no luck.

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