• Country
• United States of America (USA)

• Manufacturer / Brand
• Steinite Radio Co., Warwick Mfg.Co.; Atchinson

• Year
• 1927

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 59984

• • Brand: Marvel

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 7

• Valves / Tubes
• 199 or 299 199 or 299 199 or 299 199 or 299 199 or 299 112A 280

• Main principle
• TRF (Tuned-Radio-Frequency but use of regeneration unknown); 2 AF stage(s)

• Tuned circuits
• 4 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC) / 90-130 Volt

• Material
• Wooden case

• from Radiomuseum.org
• Model: 990 - Steinite Radio Co., Warwick

• Shape
• Tablemodel, with any shape - general.

• Notes
• Two front window dials, center voltmeter. Some models employed 8 tubes:
  2 versions: 2 x 213 in parallel (full wave rectifiers) or 2 x 281 (half wave rectifiers).

• Price in first year of sale
• 85.00 $

• 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)

• Mentioned in
• The Radio Collector's Directory and Price Guide 1921 - 1965 (Rider's 1-5)

• Literature/Schematics (1)
• Collector's Guide to Antique Radios (7th Edition)

• Other Models

• Here you find 90 models, 26 with images and 45 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Steinite Radio Co., Warwick Mfg.Co.; Atchinson