• Year
  • 1952–1954 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 190775

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Power type and voltage
  • Storage and/or dry batteries / 90 & 1,5 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 12.8 cm = 5 inch
  • Material
  • Bakelite or Plastics (type unknown)
  • from Radiomuseum.org
  • Model: TB221 - Murphy Radio Ltd.; Welwyn
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 370 x 260 x 200 mm / 14.6 x 10.2 x 7.9 inch
  • Notes
  • This radio comes from Portugal. So ist is very likely that it is an export-model. Due to information from internet it was part of the 1952-1954 export range. The "T" in the name of certan export models shall indicate that they were "tropicalized" to meet the climatic conditions of the destitated countries. The battery supply leads at the backside of the radio are described as follows: red = +90V, yellow = -90V, brown = +1,5V, black = -1,5V. Gerät stammt aus Portugal. Vermutlich Exportmodell. Laut Internet war es Teil des Exportkatalogs 1952-1954. Das "T" in der Modellbezeichnung soll "tropicalized" bedeuten, also ein Hinweis sein, dass Gerät auf tropische Bedingungen im Ziellend vorbereitet wurde. Die Kabel zum Anschluss der Batterie haben laut Rückwand folgende Belegung: rot = +90V, gelb = -90V, braun = +1,5V, schwarz= -1,5V
  • Net weight (2.2 lb = 1 kg)
  • 4.5 kg / 9 lb 14.6 oz (9.912 lb)
  • Source of data
  • - - Data from my own collection
  • Author
  • Model page created by Johannes Kramer. See "Data change" for further contributors.

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