• Country
• United States of America (USA)

• Manufacturer / Brand
• DeForest Radio Telephone & Telegraph Co. (De Forest); New York

• Year
• 1925/1926

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 37091

• • alternative name: Lee De Forest Mfg.

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

• Number of Tubes
• 5

• Valves / Tubes

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

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Storage and/or dry batteries / 6 & 22.5 x 4 & 4.5 Volt

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

• Material
• Wooden case

• from Radiomuseum.org
• Model: F-5-BW [85$] - DeForest Radio Telephone &

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

• Notes

• Three dials (primary tuning control knobs)

  In polished natural walnut cabinet without battery space or built-in loud speaker.

  DeForest Tubes
  Five required for any F-5

  Type DV-2 Storage Battery Type Audion  $3.00
  Type DV-5 Storage Battery Type Audion  $3.00

  Note: When storage "A" Battery is used for filament current supply in the F-5, 5 DV-2's or 5 DV-5 tubes are required, or preferrably, 2 DV-5 and 3 DV-2 tubes.

  Type DV-3 Dry Battery Type Audion  $3.00

  Note: When Dry batteries are used for filament current supply in the "F-5," 5 DV-3 Tubes are required. 

• Price in first year of sale
• 85.00 $

• External source of data
• Ernst Erb

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

• Mentioned in
• Collector's Guide to Antique Radios 4. Edition (January 1926, Electrical Record Supplement magazine page 31)

• Literature/Schematics (1)
• Rider's Perpetual, Volume 1 = 1931/1934 (1919 to 1931) (Misc section, page 1-3)

• Other Models

• Here you find 158 models, 132 with images and 16 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from DeForest Radio Telephone & Telegraph Co. (De Forest); New York