• País
• Estados Unidos

• Fabricante / Marca
• Philco, Philadelphia Stg. Batt. Co.; USA

• Año
• 1934/1935

• Categoría
• Radio - o Sintonizador pasado WW2

• Radiomuseum.org ID
• 50478

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

• Numero de valvulas
• 10

• Válvulas
• 78 6A7 78 78 37 75 42 42 42 5Z3

• Principio principal
• Superheterodino con paso previo de RF; ZF/IF 175 kHz

• Gama de ondas
• OM (onda media) solamente

• Tensión de funcionamiento
• Red: Corriente alterna (CA, Inglés = AC) / 115 Volt

• Altavoz
• Altavoz electrodinámico (bobina de campo)

• Potencia de salida
• 15 W (unknown quality)

• Material
• Madera

• de Radiomuseum.org
• Modelo: 200X Gothic - Philco, Philadelphia Stg. Batt

• Forma
• Consola en general

• Anotaciones
• The Philco model 200X (1934-35) was one of the industry's first high fidelity radios. The ten-tube single band chassis has variable IF bandwidth to trade off selectivity versus fidelity, controlled by a three-gang potentiometer to adjust the Q of the two of the IF transformers and the gain of the mixer stage. Unlike most radios of its day, which were restricted to about 4 kHz of audio bandwidth, the 200X has 7.5 kHz of bandwidth at its maximum fidelity setting. The circuit includes a 10 kHz audio filter to remove the high pitched heterodyne that could be caused by the carrier of an adjacent channel. The chassis has a shadow meter (tuning aid) with its own dedicated control tube (unlike other Philco designs where the shadow meter simply indicates B+ current to the RF and/or IF stages). The push-pull output stage, with one 42 driver tube and two 42 output tubes, delivers 15 watts of undistorted output.
  
  The cabinet is a floor-type console with inclined sounding board.
  
  Philco also introduced another high fidelity model in 1934 - the 201X. It was similar to model 200X but had two bands (BC + SW).

• Precio durante el primer año
• 200.00 $

• Ext. procedencia de los datos
• Ernst Erb

• Procedencia de los datos
• Collector's Guide to Antique Radios 4. Edition

• Referencia esquema
• Rider's Perpetual, Volume 5 = ca. 1934 and before

• Mencionado en
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Documentación / Esquemas (1)
• Philco Radio 1928-1942 (Philco 1928-36 Wiring Diagrams, Parts Lists, and Essential Service Data)

• Documentación / Esquemas (2)
• Pre-War Consoles

• Otros modelos

• Donde encontrará 4089 modelos, 2223 con imágenes y 3736 con esquemas.
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