• Country
• United States of America (USA)

• Manufacturer / Brand
• Brunswick-Balke-Collender Co.

• Year
• 9999

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 34759

• Number of Tubes
• 7

• Valves / Tubes

• Main principle
• TRF with regeneration

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Alternating Current supply (AC)

• Loudspeaker
• Magnetic loudspeaker (reed) generic.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Doublet with ID= 34760 - Brunswick-Balke-Collender Co.

• Shape
• Console with any shape - in general

• Notes
• Caution:
  Drawing error in Riders schematic. The first tuned circuit shows a short instead of a variable capacitor (mech. coupled with 2nd and 3rd).

• External source of data
• Ernst Erb

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

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

• Mentioned in
• Radiola, the golden Age of RCA (p.371)

• Literature/Schematics (1)
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Other Models

• Here you find 101 models, 33 with images and 67 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Brunswick-Balke-Collender Co.