• País
• Estados Unidos

• Fabricante / Marca
• Lafayette Radio & TV Corp; New York (NY)

• Año
• 1935/1936

• Categoría
• Radio - o Sintonizador pasado WW2

• Radiomuseum.org ID
• 160266

• • alternative name: Wholesale Radio

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

• Numero de valvulas
• 4

• Válvulas
• 1A6 34 34 33

• Principio principal
• Superheterodino en general; ZF/IF 175 kHz

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

• Gama de ondas
• OM (onda media) solamente

• Tensión de funcionamiento
• Pilas / 45 & 45 & 4.5 & 2 Volt

• Altavoz
• Altavoz dinámico (de imán permanente)

• Material
• Madera

• de Radiomuseum.org
• Modelo: A-31 - Lafayette Radio & TV Corp; New

• Forma
• Sobremesa alto decorativa, similar a Capilla pero cuadrado (Tombstone, can have rounded edges).

• Anotaciones

• The Lafayette catalog shows how all batteries fit inside the mantel cabinet. There is a 3-gang tuning condenser, 5 tuned circuits, and an airplane-reduction dial. The wave band extends from 175 to 550 meters (police calls incl.).
  
  The model Lafayette A-31 is listed at $31.50 with tubes but the Lafayette price is $15.75. For addl. $4.65 Lafayette offers the complete set of batteries consisting of 2 Burgess 45 V. B's. 1-4.5 V.C. and 1 Burgess A pack. See details for the models of this catalog or summaries.

  The Lafayette Radio catalog model A-31 was in reality made by Wilcox-Gay as OEM and is labeled inside as Model 3J4.  The schematic matches the Wilcox-Gay 3J4.  In restoring the chassis, it became apparent that an error likely occurred in the schematic that was perpetuated in the actual radio.  The schematic as drawn pulls the C battery with a constant 1000 ohms load.  I will upload a copy of the schematic with the probable error circled.  In cutting what was believed to be that erroneous connection, the radio sensitivity was increased, distortion was reduced and the "B" current was reduced.  In testing, the C battery voltage that produced the best results with the least distortion and reduced B current was -9 volts, consistent with the tube manual recommendations for the type 33 audio tube with a plate voltage of 90.

• Precio durante el primer año
• 16.00 $

• Documentación / Esquemas (1)
• Lafayette Radio Catalog (Lafayette catalog no. 59 for 1936, page 32.)

• Documentación / Esquemas (2)
• The Spectum Monitor, June 2022

• Autor
• Modelo creado por Ernst Erb. Ver en "Modificar Ficha" los participantes posteriores.

• Otros modelos

• Donde encontrará 1369 modelos, 1187 con imágenes y 421 con esquemas.
  Ir al listado general de Lafayette Radio & TV Corp; New York (NY)