M4 A435

NSF Nederlandsche Seintoestellen Fabriek, Hilversum

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  • Year
  • 1927
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 209357

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF with regeneration
  • Wave bands
  • Broadcast (MW) and Long Wave.
  • Power type and voltage
  • Storage and/or dry batteries
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: M4 [A435] - NSF Nederlandsche
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 540 x 340 x 325 mm / 21.3 x 13.4 x 12.8 inch
  • Notes

  • Four valve receiver with variometer tuning. The blue aluminium front is divided into three sections: the left section contains the knob for primary tuning, in the middle a small scale, wave lenght switch and secondary tuning. The right section contains reaction control, a loudspeaker connection and a lever for selectivity control (stronger/weaker). The receiver was available in three models: the M4 without doors (fl 250,-), the M4 with doors (fl 265,-) and the M4 Luxe, a luxutious model with doors (fl 285,-).
    The original tube set (1926) consisted of A410 A409 B406 and B403.

  • Net weight (2.2 lb = 1 kg)
  • 11.9 kg / 26 lb 3.4 oz (26.211 lb)
  • Mentioned in
  • Radio Historisch Tijdschrift, 1995, attachment Nr. 3
  • Author
  • Model page created by Gidi Verheijen. See "Data change" for further contributors.

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