21KX100A /04 Ch= K4

Philips; Eindhoven (tubes international!); Miniwatt

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  • Year
  • 1964
  • Category
  • Television Receiver (TV) or Monitor
  • Radiomuseum.org ID
  • 125702

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

 Technical Specifications

  • Number of Tubes
  • 34
  • Main principle
  • Superheterodyne (common)
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Alternating Current supply (AC) / 210 -230 Volt
  • Loudspeaker
  • 2 Loudspeakers
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 21KX100A /04 Ch= K4 - Philips; Eindhoven tubes
  • Shape
  • Console, Lowboy (legs < 50 %).
  • Dimensions (WHD)
  • 840 x 1020 x 710 mm / 33.1 x 40.2 x 28 inch
  • Notes

  • This television is for N.T.S.C norm. Very first Philips color TV prototype. Around 200 pcs. was made for test purpose. The chassis is also well known as the K4 type.
    Many of the television sets were modified with an additional PAL-decoder, specially for research and development (Philips laboratories, Eindhoven).
    Philips completely redesigned the horizontal transformer, because the first model often broke down.
    There is a complete circuit description of the K4 (NTSC-version, about 136 book-pages!) in the following literature (german language):
    Ing. W. Hartwich: Einführung in die Farbfernseh-Servicetechnik, Band 2: Schaltungstechnik und Service-Einstellungen. Philips Technische Bibliothek (N.V. Philips´ Gloeilampenfabrieken, Eindhoven, Niederlande) 1966

     
  • Net weight (2.2 lb = 1 kg)
  • 72 kg / 158 lb 9.4 oz (158.59 lb)
  • Source of data
  • - - Manufacturers Literature

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