• Country
• United States of America (USA)

• Manufacturer / Brand
• Columbia Records Sales Corp.; Hawthorne (NJ)

• Year
• 1966 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 246102

• • Brand: Masterwork

• Number of Transistors
• 8

• Semiconductors

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / 110 - 120 / AA: 4 x 1.5 Volt

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

• Material
• Leather / canvas / plastic - over other material

• from Radiomuseum.org
• Model: Masterwork Solid State - Eight Transistor M-2850 - Columbia Records Sales Corp.;

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

• Dimensions (WHD)
• 7.5 x 4.5 x 2.75 inch / 191 x 114 x 70 mm

• Notes

• AC-DC Operated AM Portable Radio Model Masterwork M-2850.

• Mentioned in
• Collector's Guide To TrR1 Bunis trans.94 (1996, page 155)

• Author
• Model page created by Franz Scharner. See "Data change" for further contributors.

• Other Models

• Here you find 25 models, 24 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Columbia Records Sales Corp.; Hawthorne (NJ)