• Année
  • 1967 ?
  • Catégorie
  • Amplificateur BF ou mélangeur BF
  • Radiomuseum.org ID
  • 132226

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 Spécifications techniques

  • No. de transistors
  • 22
  • Principe général
  • Amplification audio
  • Gammes d'ondes
  • - sans
  • Tension / type courant
  • Alimentation Courant Alternatif (CA) / 110; 120; 220; 240 Volt
  • Haut-parleur
  • - Ce modèle nécessite des HP externes
  • Matière
  • Boitier métallique
  • De Radiomuseum.org
  • Modèle: Ravensbourne Stereo - Rogers, Catford see also
  • Forme
  • Chassis (pour intégration dans meuble)
  • Remarques
  • The Rogers Ravensbourne Stereo was a significant transistorised amplifier introduced in 1967 by Rogers Developments.

    Key features include:

    • First transistor amplifier from Rogers, offering 25W per channel
    • Used modern silicon transistors instead of tubes
    • Priced at £64, between the HG88 tube amp (£46) and Master pre/power (£90)
    • Employed 2N3055 transistors, like other high-end amps of the era
    • Claimed low distortion and noise, excellent transient response
    • Connector for auxiliary external PreAmp for Tape Head / Microphone / 2nd Pick-up.

    It was only produced in one version, unlike the later Ravensbrook model

    Updated in 1973 with DIN speaker connectors and a higher 35W rating. Details here.

    The Ravensbourne represented Rogers' transition to transistor technology, offering increased power and performance over their tube designs in a similarly styled package. Its transformer-coupled output stage was an innovative approach, though it introduced some complexity in setup and maintenance.

    Only one channel is listed in the transistor lineup.

  • Source
  • - - Manufacturers Literature
  • Littérature
  • -- Original prospect or advert (Tape Recording UK Feb 1968, Page 87.)
  • Schémathèque (1)
  • -- Original prospect or advert (HiFi New, Review: Tim Jarman, Lab: Paul Miller | May 30, 2024)
  • Auteur
  • Modèle crée par Gottfried Silberhorn. Voir les propositions de modification pour les contributeurs supplémentaires.

 Collections | Musées | Littérature

Musées

Le modèle Ravensbourne Stereo peut être vu dans les musées suivants.

 Forum