VHF Band I & III Distribution Amplifier VH2

Radford Electronics Ltd.; Bristol

  • Jahr
  • 1959–1961 ?
  • Kategorie
  • HF-Verstärker
  • Radiomuseum.org ID
  • 360451

 Technische Daten

  • Hauptprinzip
  • HF-Verstärkung (nur)
  • Wellenbereiche
  • VHF/UHF (siehe Bemerkungen)
  • Betriebsart / Volt
  • Wechselstromspeisung / 50 Hz, 200/240 Volt
  • Lautsprecher
  • - - Kein Ausgang für Schallwiedergabe.
  • Material
  • Metallausführung
  • von Radiomuseum.org
  • Modell: VHF Band I & III Distribution Amplifier VH2 - Radford Electronics Ltd.;
  • Form
  • Tischmodell, Zusatz nicht bekannt - allgemein.
  • Bemerkung
  • Radford Electronics' Model VH2 Band I & III Distribution Amplifier was a sophisticated device designed for television signal distribution in the late 1950s.

    The VH2 consisted of two separate amplifiers, one for Band I and another for Band III, each with independent pre-set gain controls. These are fed into a combiner unit, allowing for the simultaneous amplification and distribution of both VHF television bands.

    Output Configuration

    • 9 attenuated output sockets
    • 1 full-gain output socket for feeding distribution systems
    • Attenuated sockets could be used individually or simultaneously without affecting other outputs

    Performance Specifications

    • Gain:
      • +15 dB per channel at maximum output socket
      • 3 dB per channel at attenuated outputs (when loaded to 80 ohms)
    • Bandwidth: -2 dB per channel
    • Power Output: 0.2 V into 80 ohms per channel without cross-modulation of video/sound carriers
    • Isolation: Better than 22 dB between sockets

    Input/Output Characteristics

    • Input: 80 ohms, separate coaxial socket for each channel
    • Outputs: 10 total (9 attenuated, 1 full gain)

    Power Supply
    Mains input with tapped transformer for 200/240V AC operation

    Pricing
    12 guineas (as of 1959)

    Radford Electronics' VH2 amplifier built upon their earlier expertise in RF technology, which began with their Television RF Pre-amplifiers in 1948.
    The VH2 showcased their growing proficiency in both audio and RF, offering flexible installation with full-gain and attenuated outputs for diverse distribution needs.

  • Originalpreis
  • 12.00 GNS
  • Autor
  • Modellseite von Gary Cowans angelegt. Siehe bei "Änderungsvorschlag" für weitere Mitarbeit.

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