• Country
• United States of America (USA)

• Manufacturer / Brand
• Hammarlund-Roberts, Inc., 1182 Broadway, New York, NY

• Year
• 1929

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 44050

• • Brand: HI-Q

• Number of Tubes
• 7

• Valves / Tubes
• 22 22 22 12A 12A 71A 71A

• Main principle
• TRF without regeneration; Screengrid 1926-1935

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: HiQ-30 [Battery] - Hammarlund-Roberts, Inc., 1182

• Shape
• Chassis only or for «building in»

• Notes
• One dial (primary tuning control knob)

• External source of data
• Ernst Erb

• Source of data
• Radio Collector`s Guide 1921-1932

• Circuit diagram reference
• Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)

• Other Models

• Here you find 12 models, 6 with images and 8 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hammarlund-Roberts, Inc., 1182 Broadway, New York, NY