• País
• Australia

• Fabricante / Marca
• Ferris Bros. Pty Ltd.; Sydney

• Año
• 1959/1960

• Categoría
• Radio - o Sintonizador pasado WW2

• Radiomuseum.org ID
• 262011

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

• Numero de transistores
• 8

• Semiconductores
• 2N370 2N371 2N372 2N309 OC71 OC71 OC72 OC72 OA80 OA80

• Principio principal
• Superheterodino con paso previo de RF; ZF/IF 455 kHz; 3 Etapas de AF

• Número de circuitos sintonía
• 7 Circuíto(s) AM

• Gama de ondas
• OM (onda media) solamente

• Tensión de funcionamiento
• Baterías recargables o pilas / 12 / 1 x 9 Volt

• Altavoz
• Altavoz dinámico (de imán permanente) / Ø 4 inch = 10.2 cm

• Potencia de salida
• 0.4 W (unknown quality)

• Material
• Metálico

• de Radiomuseum.org
• Modelo: Portable Car Radio M134 - Ferris Bros. Pty Ltd.; Sydney

• Forma
• Portátil > 20 cm (sin la necesidad de una red)

• Ancho, altura, profundidad
• 9.5 x 7.5 x 2.75 inch / 241 x 191 x 70 mm

• Anotaciones

• This is claimed to be the world’s first transistor/portable car radio. Certainly it is the first of it’s type on the Australian market. The cradle was sold as a separate item and is now scarce as many were left in the vehicle when it was sold, particularly if the new vehicle had a car radio and the Ferris was kept as a portable only.

  The cradle was mentioned in the Mingay's New Products Index on 8th July 1960 but the price is not advertised.

  As a portable, it is extremely heavy at almost 2½ kilograms plus the battery.

  The correct battery is a Eveready Type 2364

  The ferrite antenna is located in the plastic case extension, immediately behind the dial scale whilst the balance of the circuitry is located inside the full metal case. The power input, when the radio is used as a car radio, is filtered to suppress ignition noise. The ferrite rod antenna can be switched out of use when the radio is used as a car radio.

  A common fault with this radio, and also the MKII and MKIII versions, is that the output transistors can fail as it is easy, as a car radio, to overdrive them. 12 Volt supply, dual OC71 as audio drivers and the use of multiple speakers are an invitation to use high volume and thus high loads on these germanium transistors.

  This first version lacks of a reverse polarity protection when operated from a car battery which both 134 MkII and 134 MkIII have.

  The Mark III model also has a different front panel. The 134 and the 134 Mk II are labelled "EIGHT TRANSISTOR". The Mk III version is labelled "ALL TRANSISTOR". No doubt this reflects the change in the design from an eight transistor circuit to that of a seven transistor circuit.

• Peso neto
• 2.4 kg / 5 lb 4.6 oz (5.286 lb)

• Precio durante el primer año
• 51.48 AUS £

• Documentación / Esquemas (1)
• J.R. Publications Transistor Radio Service Handbook (Vol. 1, 1960, Page A1.)

• Documentación / Esquemas (2)
• J.R. Publications Car Radio Service Handbook (Page A1.)

• Documentación / Esquemas (3)
• Mingay's Price Service (Feb 1960 & Aug 1960.)

• Autor
• Modelo creado por Brian Wilson. Ver en "Modificar Ficha" los participantes posteriores.

• Otros modelos

• Donde encontrará 143 modelos, 86 con imágenes y 49 con esquemas.
  Ir al listado general de Ferris Bros. Pty Ltd.; Sydney