AX-235 "Little Miracle"

Emerson Radio & Phonograph Corp.; New York, NY

Datos
Foro
Imágenes
Colecciones

  • Año
  • 1938/1939
  • Categoría
  • Radio - o Sintonizador pasado WW2
  • Radiomuseum.org ID
  • 70865
    • alternative name: Emerson Television

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

 Especificaciones técnicas

  • Numero de valvulas
  • 5
  • Principio principal
  • Superheterodino en general; ZF/IF 455 kHz
  • Gama de ondas
  • OM (onda media) solamente
  • Tensión de funcionamiento
  • Red: Aparato AC/DC. / 105-125 Volt
  • Altavoz
  • Altavoz electrodinámico (bobina de campo) / Ø 4 inch = 10.2 cm
  • Material
  • Catalina
  • de Radiomuseum.org
  • Modelo: AX-235 "Little Miracle" - Emerson Radio & Phonograph
  • Forma
  • Sobremesa de tamaño mediano sin botonera <= 35 cm. (Incluso portables pero sólo con alimantación por red).
  • Ancho, altura, profundidad
  • 226 x 143 x 96 mm / 8.9 x 5.6 x 3.8 inch
  • Anotaciones

  • Selection of six Gem-like color combinations.
    Power Consumption: 45 W.
    Broadcast frequency range: 540 - 1.780 kHz.

     

  • Peso neto
  • 2.2 kg / 4 lb 13.5 oz (4.846 lb)
  • Precio durante el primer año
  • 17.95 $
  • Referencia esquema
  • Beitman Radio Diagrams Vol. 2, 1939
  • Documentación / Esquemas (3)
  • Emerson Folder Form. 39-22, 2-39 for 1939.

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El modelo AX-235 "Little Miracle" es parte de las colecciones de los siguientes miembros.

 Forum

Contribuciones en el Foro acerca de este modelo: Emerson Radio &: AX-235 "Little Miracle"

Hilos: 1 | Mensajes: 8

I am currently restoring an example of one of these radios and I have already a fair amount of experience with Emersons. This one has me baffled at present!

The chassis is more or less as factory spec but the tuning coil T1 has been chopped about in the past probably to add LW to the bands. Im not even sure that the coil is correct however I have removed all the added parts and tried to rig up the coil as intended.

The rest of the chassis components appear to be OK and resistors etc seem to buz out fine. As I am in the UK and the sets were 110AC, the line cord (missing) had to be rewired. I do this by feeding 110VAC into the set but put a series 220R resistor in line with the heaters. This allows the HT to run plus also the LT. Im getting approx 5V across each tube heater. Little bit low but still OK.

The problem is that once powered up, the audio stage is good plus the 6Q7 stage but Im not getting any signal. Touching the caps if the 6A8 and 6K7 tubes produce a click but thats it. HT is running at 82V before the speaker field coil and 66V after. Im starting to wonder if I have a bad 6A8 but any help would be useful. What is the HT that I should get?

Anexos

Mark Andrews, 28.Feb.11

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