• Country
• United States of America (USA)

• Manufacturer / Brand
• National Electric Signaling Co. (NESCO) or Supply; Washington, D.C.

• Year
• 1928

• Category
• Military Receiver

• Radiomuseum.org ID
• 300305

• • alternative name: National Electric Signaling Co. || National Electrical Supply Co.

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

• Number of Tubes
• 4

• Valves / Tubes
• VT-5 VT-5 VT-5 VT-5

• Main principle
• TRF with regeneration; 2 AF stage(s)

• Wave bands
• Broadcast (MW) and Long Wave.

• Power type and voltage
• Storage and/or dry batteries / 4 & 40 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Radio Receiver Type BC-137 - National Electric Signaling Co

• Dimensions (WHD)
• 400 x 240 x 190 mm / 15.7 x 9.4 x 7.5 inch

• Notes

• Frequency Range 325 - 900 Kilocycles

  Manufactured by National Electrical Supply Washington DC

• Net weight (2.2 lb = 1 kg)
• 6.4 kg / 14 lb 1.6 oz (14.097 lb)

• Author
• Model page created by Musée des Radios Museum. See "Data change" for further contributors.

• Other Models

• Here you find 31 models, 29 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from National Electric Signaling Co. (NESCO) or Supply; Washington, D.C.