• Country
• Spain

• Manufacturer / Brand
• Retex S.A.; Hospitalet de LLobregat

• Year
• 1961

• Category
• Miscellaneous (Other, Various) - see notes

• Radiomuseum.org ID
• 278016

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

• Number of Transistors
• 4

• Semiconductors
• OC75 OC75 OC74 OC74

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries / 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Power out
• 0.4 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Interphone IT-1 - Retex S.A.; Hospitalet de

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 193 x 125 x 142 mm / 7.6 x 4.9 x 5.6 inch

• Notes

• Interphone IT-1

  Word sensibility: 1mV
  Maximum distance between central unit and extension: 1km.
  Connexion between the two units by means of normal two conductors cable.
  Two senses calling

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  Central unit is able to call and speak with any of maximum 2 extensions. Any of the extensions is able to call and speak with the central unit, but not with the other one.
  A typical radial intercomunication system. Extension selector is located on the left of the central unit (see picture).

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• Net weight (2.2 lb = 1 kg)
• 1.240 kg / 2 lb 11.7 oz (2.731 lb)

• Price in first year of sale
• 1,945.00 ESP

• Mentioned in
• Retexkit 1964 general catalogue

• Author
• Model page created by Josep-Joan Berenguer. See "Data change" for further contributors.

• Other Models

• Here you find 39 models, 39 with images and 31 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Retex S.A.; Hospitalet de LLobregat