12U-20

Philips; Eindhoven (tubes international!); Miniwatt

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  • Year
  • 1938
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 187704

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common); ZF/IF 128 kHz; 1 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast, Long Wave and Short Wave.
  • Power type and voltage
  • AC/DC-set / 110-125; 200-225 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)
  • Material
  • Bakelite case
  • from Radiomuseum.org
  • Model: 12U-20 - Philips; Eindhoven tubes
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • Attention: the creation of this model has been based on a technical manual. Since the manual was clearly edited with the typical Philips lay-out and was printed in Eindhoven, it was erroneously assumed that such a Philips model existed. Unlike the usual 3 digit type code by Philips in that era, this model has only 2 digits and the manual doesn't carry the Philips logo nor a drawing of the model. This particular model may have been designed by Philips but was intended for brands owned by or dependent from Philips, where the model with the "-20" suffix would be intended for the Belgian market. We can find a real existing model with some brands but not all of them.
    This model 12U may not exist as a Philips but real models are found as there are:

    This list may not be complete. Also related to this schematic: Philips 470U. Slight differences may appear in these models with respect to the schematic here present.

  • Source of data
  • -- Original-techn. papers.
  • Author
  • Model page created by Dirk Bladt. See "Data change" for further contributors.

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