Shielded Grid 7 (Tyrman 70) 7

Tyrman Electric Corporation; Chicago, IL

  • Year
  • 1928
  • Category
  • Kit (Parts plus instruction) or building instructions only
  • Radiomuseum.org ID
  • 63779

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 350 kHz; 3 AF stage(s); Screengrid 1926-1935
  • Tuned circuits
  • 5 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: Shielded Grid 7 7 - Tyrman Electric Corporation;
  • Notes
  • Two dials (primary tuning control knobs)

  • Price in first year of sale
  • 98.00 $
  • External source of data
  • Ernst Erb

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The model Shielded Grid 7 (Tyrman 70) is part of the collections of the following members.

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