• País
• Gran Bretaña (GB)

• Fabricante / Marca
• Magnum (brand) Burne-Jones & Co. Ltd.; London

• Año
• 1954 ?

• Categoría
• Micrófono o Pick-up

• Radiomuseum.org ID
• 331813

Haga clic en la miniatura esquemática para solicitarlo como documento gratuito.

• Gama de ondas
• - no hay

• Tensión de funcionamiento
• No necesita alimentación

• Material
• Bakelita

• de Radiomuseum.org
• Modelo: BJ Tangential Tonearm - Magnum brand Burne-Jones & Co.

• Ancho, altura, profundidad
• 215 x 65 x 50 mm / 8.5 x 2.6 x 2 inch

• Anotaciones

• The Burne-Jones tangential BJ Arm was invented to minimize tracking errors on record players.

  Here's the issue:

  • Records have grooves cut in a straight line across the disc.
  • Traditional record player arms pivot on the side, causing a slight angle when following the curve of the groove.
  • This angle introduces tracking errors, affecting sound quality.

  The BJ Arm addressed this by:

  • Using a pivoted design that tracked the groove tangentially (in a straight line).
  • Minimising tracking errors almost to zero for better sound reproduction.

  However, the BJ Arm had limitations:

  • Complexity: The design was intricate, making it expensive to manufacture.
  • Cost-cutting: To keep the price down, lower-quality bearings were used.
  • Rigidity: This resulted in the arm being less rigid than standard arms, potentially affecting performance.

  Despite these drawbacks, the BJ Arm enjoyed popularity among hi-fi enthusiasts for over a decade due to its significant reduction in tracking errors.

  See the later improved version BJ Super 90.

• Peso neto
• 0.140 kg / 0 lb 4.9 oz (0.308 lb)

• Precio durante el primer año
• 3.00 £

• Mencionado en
• Wireless World (The), London (WW, 79) (Nov 1954, Page 114.)

• Documentación / Esquemas (1)
• The Gramophone - August 1954

• Autor
• Modelo creado por Stan Roberts. Ver en "Modificar Ficha" los participantes posteriores.

• Otros modelos

• Donde encontrará 23 modelos, 17 con imágenes y 1 con esquemas.
  Ir al listado general de Magnum (brand) Burne-Jones & Co. Ltd.; London