• Country
• United States of America (USA)

• Manufacturer / Brand
• Signal Electric Mfg. Co.; Menominee (MI)

• Year
• 1920

• Category
• Radio module pre 1926 (not a part, not a key)

• Radiomuseum.org ID
• 214367

• Number of Tubes
• 1

• Valves / Tubes
• AudioTron or T_deForest

• Main principle
• Detector with Vacuum Tube (Valve), no tuner

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries

• Loudspeaker
• - For headphones or amp.

• Material
• Bakelite, TUBES VISIBLE

• from Radiomuseum.org
• Model: Vacuum Tube Control Panel No. R38 - Signal Electric Mfg. Co.;

• Shape
• Tablemodel, with any shape - general.

• Notes
• "Signal" Vacuum Tube Control Panel No. R38 for Audiotron type tubes.

• Literature/Schematics (1)
• December 1920 Pacific Radio News magazine page 139

• Author
• Model page created by Alan Larsen. See "Data change" for further contributors.

• Other Models

• Here you find 34 models, 33 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Signal Electric Mfg. Co.; Menominee (MI)