• País
• Australia

• Fabricante / Marca
• Philips Australia

• Año
• 1959/1960

• Categoría
• Radio - o Sintonizador pasado WW2

• Radiomuseum.org ID
• 250039

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

• Numero de transistores
• 7

• Semiconductores
• OC44 OC45 OC45 OC71 OC75 OC72 OC72 OA95

• Principio principal
• Superheterodino en general; ZF/IF 455 kHz

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

• Gama de ondas
• OM (onda media) solamente

• Tensión de funcionamiento
• Pilas / AA: 4 x 1.5 Volt

• Altavoz
• Altavoz dinámico (de imán permanente) / Ø 2.75 inch = 7 cm

• Material
• Plástico moderno (Nunca bakelita o catalina)

• de Radiomuseum.org
• Modelo: All Transistor 225 - Philips Australia

• Forma
• Portátil de bolsillo , menor de 20cm.

• Ancho, altura, profundidad
• 6.25 x 3.125 x 1.375 inch / 159 x 79 x 35 mm

• Anotaciones

• Philips Model 225 All Transistor Personal Portable

  Packed with good features - this mighty midget gives full sized performance at a tiny cost. Weighs only 18 oz. complete with its penlite (AA) batteries (weight stated is without batteries). The small lustrous plastic case contains a powerful receiver with 7 transistors, plus a germanium diode, ferroxcube rod aerial, and imported high efficiency 2" speaker.

  The portable includes a socket to fit optional earphone. Speaker is automatically switched off for "private listening".

  Available in three modern colours - red, burgundy or charcoal. (MINGAY'S PRICE SERVICE)

  This is the second Australian Transistor Radio from Philips and pre-dates the (now more common) 199, 199A and 199C. The release date of December 1959 is from the manufacturers Service Data (Page 4). The tuning range of 517 -- 1622 kHz is quite large and extends beyond the modern range. The radio is unusual in that there is no Printed Circuit Board but rather the circuit board is punched and component leads passed through and point to point wiring finished on what would normally be called the "Copper" side of the board. The choice of the OC75 for the 2nd Audio Preamplifier shows a difference from the usual transistor selection of the period and the use of OC44/OC45s in the RF section dates it before the OC170/OC169s used in the 199C. The Tuning Gang is not the sub-miniture plastic or mica insulated type but rather uses air as the dielectic element. Initially the radio was available in Red, Burgundy and Charcoal. The data sheet lists the speaker as "2 Inches" but at least one examples has a 70 mm (2.75 inch) speaker. The speaker mounts on the circuit board and has a foam gasket between it and the front grill.

• Peso neto
• 0.4 kg / 0 lb 14.1 oz (0.881 lb)

• Precio durante el primer año
• 32.55 AUS £

• Mencionado en
• Mingay's Price Service (Feb 1960 & Aug 1960.)

• Documentación / Esquemas (1)
• -- Original-techn. papers. (Philips Radioplayer Service Data, December 1959.)

• Documentación / Esquemas (2)
• J.R. Publications Transistor Radio Service Handbook (Supplement to Vol. 1, 1960.)

• Documentación / Esquemas (3)
• J.R. Publications Transistor Radio Service Handbook (A Series Handbook, Page P4.)

• Documentación / Esquemas (4)
• Feb 1960 & Aug 1960.

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

• Otros modelos

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