570 Ch= 530
Airzone (1931) Ltd.; Sydney
- País
- Australia
- Fabricante / Marca
- Airzone (1931) Ltd.; Sydney
- Año
- 1937
- Categoría
- Radio - o Sintonizador pasado WW2
- Radiomuseum.org ID
- 166419
Haga clic en la miniatura esquemática para solicitarlo como documento gratuito.
- Numero de valvulas
- 5
- Principio principal
- Superheterodino en general; ZF/IF 456 kHz; 2 Etapas de AF
- Número de circuitos sintonía
- 6 Circuíto(s) AM
- Gama de ondas
- OM (onda media) solamente
- Tensión de funcionamiento
- Red: Corriente alterna (CA, Inglés = AC) / 200-250 Volt
- Altavoz
- Altavoz electrodinámico (bobina de campo) / Ø 8 inch = 20.3 cm
- Material
- Madera
- de Radiomuseum.org
- Modelo: 570 Ch= 530 - Airzone 1931 Ltd.; Sydney
- Forma
- Consola baja, patas más cortas del 50%.
- Anotaciones
-
Airzone model "570" is a five-valve broadcast reception console using chassis type "530" and arranged for operation from 200-250 volt A.C. mains. Three controls are fitted, these being for volume, tuning and tone (three positions). This model was introduced late in 1937 and uses an 8-inch, 2,000 ohms field loudspeaker.
The circuit arrangement of this receiver is fairly straightforward, and should present no particular difficulty. Attention should be paid, however, to the use of the oscillator padding condenser (C2) for oscillator grid blocking instead of the conventional grid condenser on the "hot" side of the coil - note also that the oscillator grid resistor (R3) is shunted directly across C2 instead of being wired between the grid and earth. Other points to note are the low value (0.002 mfd (μF)) of the oscillator plate by-pass condenser (C3), and the use of the 75 cathode resistor (R10) as part of the screen voltage divider network. (RADIO TECHNICIAN)
- Precio durante el primer año
- 19.95 AUS £
- Referencia esquema
- Australian Official Radio Service Manual Vol. I I
- Documentación / Esquemas (1)
- Radio Technician (October 1939, Page 107.)
- Documentación / Esquemas (2)
- Australian Official Radio Service Manual AORSM (Volume 2, 1939, Page 27 (shown as 530 (chassis type)).)
- Autor
- Modelo creado por Stuart Irwin. Ver en "Modificar Ficha" los participantes posteriores.
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