• Year
  • 1953 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 299264

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • AC/DC-set / 125 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • TUBES VISIBLE, material not known.
  • from Radiomuseum.org
  • Model: Tinkertoy Radio - MILITARY U.S. different makers
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 8 x 5 x 5 inch / 203 x 127 x 127 mm
  • Notes
  • This is one of only three radios built to display the advantages of the "Tinkertoy" technology developed in a secret project by the National Bureau of Standards (NBS) for the Navy Bureau of Aeronautics.  These models were created to show commercial radio manufacturers the pre-transistor technology.  Motorola for one used the technology in some of their portable models. For instance the Motorola 66L1 charcoal and 66L2 suntan (Chassis HS-515). See also this Tinkertoy-article plus an article in German.

    One of the photos at the model page for 5P31A - HS559 shows one version of the Tinkertoy stack with a tube socket at the top holding the 1DN5 detector/audio-preamp tube.

    The schematic page with the top view of the parts layout for model 5P21B - HS633 shows a different Tinkertoy single stack module without a tube socket.

  • Author
  • Model page created by Gerhard Grieb. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model Tinkertoy Radio is part of the collections of the following members.

 Forum