• Country
• United States of America (USA)

• Manufacturer / Brand
• Grant Company, W.T. (Grantline); New York (NY)

• Year
• 1948

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 192337

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

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1U4 1S5 3S4

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / AC-DC 110-120 / 7.5 & 67.5 Volt

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

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Grantline 508-7 [battery-line operated] - Grant Company, W.T. Grantline;

• Shape
• Portable set > 8 inch (also usable without mains)

• Notes
• Grant Grantline 508-7;
  built-in loop antenna.

• Literature/Schematics (4)
• Photofact Folder, Howard W. SAMS (Set 34, Date 2/48, Folder 484-8)

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

• Other Models

• Here you find 20 models, 16 with images and 17 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Grant Company, W.T. (Grantline); New York (NY)