• Country
• Japan

• Manufacturer / Brand
• Marvel (brand name), Japan

• Year
• 1962 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 136228

• Number of Transistors
• 8

• Semiconductors
• 2S52 2S52 2S49 2S53 2S54 2S54 2SB56 2SB56

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Wave bands
• Broadcast only (MW).

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

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 2.5 inch = 6.4 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: 8 Transistor 8YR-10A - Marvel brand name, Japan

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

• Dimensions (WHD)
• 70 x 110 x 28 mm / 2.8 x 4.3 x 1.1 inch

• Notes

• Battery operated portable AM receiver.

  USA Civil Defense marks on station plate.  Easel style stand. 

  Made in Japan

• Mentioned in
• Collector's Guide To TrR1 Bunis trans.94 (1996, page 154)

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 566 folder 11 date 2-62 title)

• Literature/Schematics (2)
• Photofact TSM Transistor Radio Series SAMS (TSM-16 (October, 1962))

• Author
• Model page created by Peter Hoddow. See "Data change" for further contributors.

• Other Models

• Here you find 27 models, 26 with images and 0 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Marvel (brand name), Japan