• Country
• United States of America (USA)

• Manufacturer / Brand
• Triangle Electric Co., Chicago Ill, Western Auto Supply Co

• Year
• 1937 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 214010

• Number of Tubes
• 7

• Valves / Tubes
• 6L7G 6K7G 6C5G 6Q7G 6G5 6F6G 5Y3

• Main principle
• Superheterodyne (common); ZF/IF 456 kHz; 2 AF stage(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Alternating Current supply (AC) / 110-115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 7 inch = 17.8 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: Imperial 7U-117 - Triangle Electric Co., Chicago

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Dimensions (WHD)
• 16 x 21 x 10 inch / 406 x 533 x 254 mm

• Notes
• Imperial logo on front. Label inside states "Triangle Industries Corp".

• Source of data
• - - Data from my own collection

• Author
• Model page created by Howard Mariotti. See "Data change" for further contributors.

• Other Models

• Here you find 7 models, 5 with images and 2 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Triangle Electric Co., Chicago Ill, Western Auto Supply Co