• Country
• United States of America (USA)

• Manufacturer / Brand
• Evansville Radio Laboratory; Evansville, Indiana

• Year
• 1920

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

• Radiomuseum.org ID
• 195795

• Number of Tubes
• 1

• Valves / Tubes
• VT-Class-I or B_Moorhead-Shaw or AudioTron

• 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
• Wooden case

• from Radiomuseum.org
• Model: EV-RA-LAB Audion Control Unit Type D - Evansville Radio Laboratory;

• Shape
• Tablemodel, Box - most often with Lid (NOT slant panel).

• Notes
• The EV-RA-LAB Type D Audion control unit had a standard 4 prong tube and also binding posts on the front to hookup a tubular Audio-Tron tube.

• Price in first year of sale
• 12.00 $

• Literature/Schematics (1)
• November 1920 Radio News advertisement page 326

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

• Other Models

• Here you find 7 models, 6 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Evansville Radio Laboratory; Evansville, Indiana