935 Ch= 1001
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alternative name
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Chicago Radio Lab | ||||
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| Año: 1935 | Categoría: Radio - o Sintonizador pasado WW2 | ||||
| Válvulas | 10: 6D6 6A7 76 6D6 6D6 75 42 42 42 5Z3 |
| Principio principal | Superheterodino con paso previo de RF; ZF/IF 485 kHz |
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| Gama de ondas | OM y más de dos OC |
| Especialidades | |
| Tensión de funcionamiento | Red: Corriente alterna (CA, Inglés = AC) / 117 Volt |
| Altavoz | Altavoz electrodinámico (bobina de campo) |
| Potencia de salida | |
| de Radiomuseum.org | Modelo: 935 Ch= 1001 - Zenith Radio Corp.; Chicago, |
| Material | Madera |
| Forma | Sobremesa alto decorativa, similar a Capilla pero cuadrado (Tombstone, can have rounded edges). |
| Anotaciones | Band 1: 540-1500kHz; Band 2: 1.5-4.0 MHz; Band 3: 4.0-10.5 MHz; Band 4: 9-22 MHz; Band 5: 18-44MHz. Has tuning indicator over main tuning dial = Shadow Meter. |
| Referencia esquema | Rider's Perpetual, Volume 5 = ca. 1934 and before |
| Mencionado en | Zenith Radio The Early Years 1919-1935 |
Modelo creado por Konrad Birkner † 12.08.2014. Ver en "Modificar Ficha" los participantes posteriores.
Ir al listado general de Zenith Radio Corp.; Chicago, IL
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Entradas: 1588 Réplicas: 1
zenith: (Ch= 1001); 935
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Alfred Pugliese
31.Mar.09 |
1
I would think the tuning indicator is a 'Tuning Eye tube'...But I don't see one listed on specs of radio. From your picture, there should be a tube turned side-ways, inside a small housing with resistor . I hope this helps...let me know.....AL |
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Bryce Ringwood
01.Apr.09 |
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Al - The mechanism(?) is housed in a small trapezoidal box with a light behind to project on to the small screen in front. The indication is in the form of a shadow that varies in widh, becoming narrow when a strong signal is received. The shadow moves when the device is tapped. The circuit diagram shows the device in series with a resistor in the anode circuit of a 76 triode, but there is no hint of how the thing operates. I just enlarged the legend - it says "shadowgraph". The display certainly is reminiscent of the much later EM84. ... Bryce
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