• Country
• United States of America (USA)

• Manufacturer / Brand
• Sampson, The, Co.; Chicago, IL

• Year
• 1962 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 90334

• • Brand: Hemisphere

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

• Number of Transistors
• 8

• Semiconductors

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 3 AF stage(s)

• Tuned circuits
• 5 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Dry Batteries / 1 x 9 Volt

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: Eight Transistor BT-85 - Sampson, The, Co.; Chicago, IL

• Shape
• Very small Portable or Pocket-Set (Handheld) < 8 inch.

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 23, 1963

• Literature/Schematics (1)
• Collector's Guide To TrR1 Bunis trans.94 (1996, page 236.)

• Literature/Schematics (2)
• Photofact TSM Transistor Radio Series SAMS (TSM-27, Aug. 1963.)

• Literature/Schematics (3)
• Transistor Radios (1994 Lane, page 94.)

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• Other Models

• Here you find 11 models, 8 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sampson, The, Co.; Chicago, IL