• Country
• United States of America (USA)

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

• Year
• 1946/1947

• Category
• Miscellaneous (Other, Various) - see notes

• Radiomuseum.org ID
• 151607

• • 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
• 3

• Valves / Tubes
• 12SH7 50B5 35W4

• Main principle
• Audio-Amplification; 2 AF stage(s)

• Wave bands
• - without

• Power type and voltage
• AC/DC-set / 110-120 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 135 [late] - Federal Radio Corp. / Federal

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Notes
• The Federal model 135 is an AC-DC Operated Inter-Communication System with two items, a main station and satellites - each has one loudspeaker used as microphone and speaker, depending on the listen-talk switch.
  Not to be confused with the early radio model 32 from about 1925.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date: Jan 1947, Set 11, Folder 471-7)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• 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