Universeel Ontvanger H2L/7

NSF Nederlandsche Seintoestellen Fabriek, Hilversum

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  • Year
  • 1934 ?
  • Category
  • Commercial Receiver (may include amateur bands)
  • Radiomuseum.org ID
  • 320181

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • TRF with regeneration; 2 AF stage(s)
  • Tuned circuits
  • 2 AM circuit(s)
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Line / Batteries (any type) / AC 220 / 4 & 150 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Universeel Ontvanger H2L/7 - NSF Nederlandsche
  • Shape
  • Tablemodel, with any shape - general.
  • Notes

  • The H2L/7 receiver was used on ships. The sturdy chassis is of cast aluminium. The frequency range is 15 kHz to 21 MHz in 10 bands:

    • 15-46 kHz
    • 46-125 kHz
    • 125-430 kHz
    • 350-1000 kHz
    • 1-2,7 MHz
    • 2,7-7,5 MHz
    • 7,5-9,7 MHz
    • 9,7-12 MHz
    • 12,5-15,8 MHz
    • 15,8-21 MHz.

    Reception with a crystal is also possible. The antenna is connected via a special junction-box with rejection-filter.

    The earlier variant with only one tube LF is model HL/7.
    Variant HL/7K uses 2 volts filament valves, with the heaters connected in parallel (KF2 KBC1 KF2).

  • Mentioned in
  • Schematic
  • Author
  • Model page created by Gidi Verheijen. See "Data change" for further contributors.

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