• Country
• United States of America (USA)

• Manufacturer / Brand
• Hetro Electrical Industries; Chicago, IL

• Year
• 1937 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 286987

• Number of Tubes
• 8

• Valves / Tubes
• 6L7 6C5 6K7 6Q7 6G5 25L6 25L6 25Z6

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 220 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 20 cm = 7.9 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: 20112 - Hetro Electrical Industries;

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 555 x 320 x 262 mm / 21.9 x 12.6 x 10.3 inch

• Notes

• Finnish reseller: Kännö & C:o Turku

• Author
• Model page created by Timo Rantasaari. See "Data change" for further contributors.

• Other Models

• Here you find 79 models, 5 with images and 74 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hetro Electrical Industries; Chicago, IL