• Country
• United States of America (USA)

• Manufacturer / Brand
• Allied Radio Corp. (Knight, Roamer, Wextark); Chicago (IL)

• Year
• 1948 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 195816

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 1,5 & 67,5 Volt

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

• from Radiomuseum.org
• Model: Knight 4D-450 [battery operated] - Allied Radio Corp. Knight,

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

• Literature/Schematics (4)
• Photofact Folder, Howard W. SAMS (Set 40, Date 5/48, Folder 4810-9)

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

• Other Models

• Here you find 1035 models, 638 with images and 680 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Allied Radio Corp. (Knight, Roamer, Wextark); Chicago (IL)