• Country
• United States of America (USA)

• Manufacturer / Brand
• Federal Radio Corp. / Federal Telephone & Telegraph Co.; Buffalo, NY

• Year
• 1925

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 40370

• • alternative name: Federal Recorder || Federal Tel. & Radio || Federal T&T
  • Brand: Orthosonic / Ortho-Sonic

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

• Number of Tubes
• 5

• Valves / Tubes
• UX201A UX201A UX201A UX201A UX112

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

• Tuned circuits
• 3 AM circuit(s)

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• -Loudspeaker incorporated, but system not known.

• Material
• Wooden case

• from Radiomuseum.org
• Model: B30 Ortho-Sonic [loudspeaker inside] - Federal Radio Corp. / Federal

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

• Notes
• The model B30 has three dials (primary tuning control knobs). It operates also with 199 tubes. It seems that this Federal model Orthosonic B30 was made in two versions, this one with a loudspeaker in the left compartment, not visible when the lid is closed, and the other with a loudspeaker in front which comes up as a part of a circle on top. The Federal B30 needs different battery voltages: 135, 67.5, 22.5, -4.5, -9 plus filament.

• Price in first year of sale
• 130.00 $

• 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
• Collector's Guide to Antique Radios 4. Edition

• Literature/Schematics (1)
• Radio Manufacturers of the 1920s, Vol 1

• Other Models

• Here you find 205 models, 90 with images and 133 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Federal Radio Corp. / Federal Telephone & Telegraph Co.; Buffalo, NY