• Country
• United States of America (USA)

• Manufacturer / Brand
• Howard Radio Company; Chicago, IL

• Year
• 1928

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 207980

• Number of Tubes
• 9

• Valves / Tubes
• UX226 UX226 UX226 UX226 UX226 UY227 UX171A UX171A UX280

• Main principle
• TRF without regeneration; 2 AF stage(s)

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Details
• Record Player (not changer)

• Power type and voltage
• Alternating Current supply (AC) / 110-120 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: Green Diamond Eight Ch = Green Diamond Chassis - Howard Radio Company; Chicago,

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

• Notes
• Howard Radio Green Diamond Eight Four stages of radio frequency with complete shielding. Push-pull audio with two power tubes.

• Price in first year of sale
• 125.00 $

• Literature/Schematics (1)
• 1928 Howard Radio Company sales pamphlet page 12

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

• Other Models

• Here you find 354 models, 153 with images and 214 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Howard Radio Company; Chicago, IL