Emi corder SM-205TW

Tokyo Rokuon Kogyo Corp.; Tokyo

Data
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  • Year
  • 1959
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 293365

 Technical Specifications

  • Number of Transistors
  • 5
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Details
  • Tape Recorder
  • Power type and voltage
  • Other, details in remarks or not known. / 1 x 9 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 cm = 2.4 inch
  • Power out
  • 1 W (unknown quality)
  • Material
  • Leather / canvas / plastic - over other material
  • from Radiomuseum.org
  • Model: Emi corder SM-205TW - Tokyo Rokuon Kogyo Corp.;
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 240 x 190 x 120 mm / 9.4 x 7.5 x 4.7 inch
  • Notes

  • The Emi corder SM-205TW is a spring-wound motor driven tape recorder using a 5 transistor circuit board powered by a standard 9 V dry battery block.

    It has a ridged capstan drive, directly mounted on the motor shaft, and uses a flyweight governor to maintain a speed of 3 ¾  inches per second. The recorder is fitted with a combined playback / recording head and a DC eraser head, with no provisions for HF biasing and erasure.

    A connection to the British EMI company as suggested by the model name does not exist.

  • Net weight (2.2 lb = 1 kg)
  • 3 kg / 6 lb 9.7 oz (6.608 lb)
  • Price in first year of sale
  • 25.35 $
  • Mentioned in
  • History of Clockwork-Driven Tape Recorders, Schellin 2009, p.228
  • Author
  • Model page created by Hubert Eisner. See "Data change" for further contributors.

 Collections | Museums | Literature

Collections

The model Emi corder is part of the collections of the following members.

 Forum

Forum contributions about this model: Tokyo Rokuon Kogyo: Emi corder SM-205TW

Threads: 1 | Posts: 1

By its price tag of $15, this tape recorder was cleary positioned as a toy. For a professional recorder (like the Magnemite) you had to pay ten times as much, meaning more that a month’s income at that time. On the other hand the SM-205 TW was good enough for reasonable quality voice recording.

The previous owner of this item that is part of my collection now told me its history. The parents of a US soldier stationed in one of the East Asian war theatres (most probably Korea) stayed in contact with their son by exchanging ‘audio postcards’ recorded on the small 3” reels via the Army Postal Service.

Unfortunately, none of these original recordings have survived.

Hubert Eisner, 23.Aug.17

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