• Country
• Japan

• Manufacturer / Brand
• Crown Radio Corp.; Tokyo

• Year
• 1959 ??

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 112294

• • alternative name: Asahi Radio Mfg. Co., Ltd

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

• Number of Transistors
• 7

• Semiconductors
• 2SA15 or. 2N219 2SB75 or. 2N215 2SB75 or. 2N215 2SA14 or. HJ62 2SA14 or. HJ62 2SB77 or. 2N217 2SB77 or. 2N217 1N34A 1N34A

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

• Wave bands
• Broadcast and Short Wave (SW).

• Details
• Record Player (not changer)

• Power type and voltage
• Dry Batteries / D: 6 x 1.5 Volt

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

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

• from Radiomuseum.org
• Model: Radio Phonograph TRP-20 - Crown Radio Corp.; Tokyo

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

• Dimensions (WHD)
• 13.375 x 5.125 x 9.4375 inch / 340 x 130 x 240 mm

• Notes

• 3-Speed, 2 band 7 transistor portable.

  Tuning range: BC 540 - 1600 KC (kHz) & SW 4 - 11 MC (MHz)

  • Built-in telescopic antenna.
  • Speaker 4" x 6" elliptical permanent dynamic speaker.

• Net weight (2.2 lb = 1 kg)
• 4.5 kg / 9 lb 14.6 oz (9.912 lb)

• Source of data
• -- Collector info (Sammler)

• Literature/Schematics (1)
• J.R. Publications Transistor Radio Service Handbook (Vol. 1, 1960, Page C2.)

• Literature/Schematics (2)
• J.R. Publications Transistor Radio Service Handbook (E Series Handbook, 1962, Page C5.)

• Literature/Schematics (3)
• Photofact Folder, Howard W. SAMS (Set 531, Folder 5, May 1961.)

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 369 models, 337 with images and 98 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Crown Radio Corp.; Tokyo