56T1A Ch= HS-553

Motorola Inc. (ex Galvin Mfg.Co. Chicago); Schaumburg (IL)

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  • Year
  • 1956
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 82771

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Transistors
  • 5
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / 9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 56T1A Ch= HS-553 - Motorola Inc. ex Galvin Mfg.Co
  • Shape
  • Very small Portable or Pocket-Set (Handheld) < 8 inch.
  • Dimensions (WHD)
  • 5.5 x 4 x 1.5 mm / 0.2 x 0.2 x 0.1 inch
  • Notes

  • The model 56T1 is Motorola's first transistor portable. It has a metal case, but the handle is made in plastic to serve as antenna. See also the models 56T1A and this one with the same case. Pull the volume control knob from front of the radio for chassis removal. There is a tuning knob retaining screw. After the tuning knob is removed the chassis mounting screw is visible.

    For the differences among the 3 chassis see model 56T1B.

     

  • Circuit diagram reference
  • Beitman Radio Diagrams Vol. 17, 1957
  • Author
  • Model page created by Egon Penker. See "Data change" for further contributors.

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