Narrow Band FM - Adaptor NFM-50

National Company; Cambridge & Malden (MA)

  • Year
  • 1950 ?
  • Category
  • Radio module post 1925 (not a part, not a key)
  • Radiomuseum.org ID
  • 87466
    • alternative name: National Toy Co.
    • Brand: Thrillbox

 Technical Specifications

  • Number of Tubes
  • 2
  • Power type and voltage
  • Powered by external power supply or a main unit.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Narrow Band FM - Adaptor NFM-50 - National Company; Cambridge &
  • Shape
  • Chassis only or for «building in»
  • Notes
  • plug in adaptor / demodulator for narrow band FM transmissions, plug-in subchassis; matches National HRO-50 receiver.
  • Price in first year of sale
  • 17.00 $
  • Circuit diagram reference
  • Rider's Perpetual, Volume 21, Copyright 1950
  • Author
  • Model page created by Martin Bösch. See "Data change" for further contributors.

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