Colorama E-101

• País
• Estados Unidos

• Fabricante / Marca
• General Electric Co. (GE); Bridgeport CT, Syracuse NY

• Año
• 1936

• Categoría
• Radio - o Sintonizador pasado WW2

• Radiomuseum.org ID
• 42026

• • Brand: Musaphonic

• Imágenes
• Esquemas

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• Numero de valvulas
• 10

• Válvulas
• 6K7 6A8 6J7 6K7 6K7 6H6 6C5 6F5 6L6 5Z4

• Principio principal
• Superheterodino con paso previo de RF; ZF/IF 465 kHz; 2 Etapas de AF

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

• Gama de ondas
• OM, OC y banda Pesquera (policia USA)

• Especialidades
• Visual Tuning Indicator pre Eye

• Tensión de funcionamiento
• Red: Corriente alterna (CA, Inglés = AC) / Either Transformer: 50-60 cycles, 105-120 or 25-60 cycles, 105-120 or 40-60 cycles115; 125; 220; 240 Volt

• Altavoz
• Altavoz electrodinámico (bobina de campo) / Ø 8 inch = 20.3 cm

• Potencia de salida
• 6.5 W (14 W max.)

• Material
• Madera

• de Radiomuseum.org
• Modelo: Colorama E-101 - General Electric Co. GE;

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

• Ancho, altura, profundidad
• 15.75 x 20.8 x 9.5 inch / 400 x 528 x 241 mm

• Anotaciones

• The General Electric E-101 is an AC operated 10 tube BC, Police and SW band receiver. Has dual speed tuning controls, with fast tuning ratio 8:1 and vernier tuning ratio 40:1. 

  The General Electric models E-101, E-105 and E-106 share the same schematic (Rider's GE 7-29 through 7-32 and GE Service manual 1935-1939 pages 213 to 224) and feature the Colorama tuning indicator (see post 5 etc.). The triode 6C5 commands depending on the AGC line the saturation of the "magnetic amplifier", a saturable core reactor. The reactor is in series with a row of 4 red stained pilot lamps and 3 green stained light bulbs behind the scale which turn the light to green when a carrior (station) is tuned in. Weak stations will produce a small color change and strong stations larger changes - a smooth process. This was then a novelty for GE sets - the Magic Eye was just on the market but GE wanted to first have it's own gadget which was a problem to service men and the cost was over twice that of the tuning eye.
  
  The 6J7 is for the AFC - not used in models E-91 and E-95. The band B (Broadcast) covers 540 - 1680 kc, the band C (Fishery, Police etc.) 1680 - 6000 kc and band D (SW) 6 - 18 mc.

  The E-101 was available with 3 different power transformers:

  Rating Label	Input Voltage (Volts)	Frequency (Cycles)
  A	105-120	50-60
  C	105-120	25-60
  V (Universal transformer)	Taps at 115, 125, 220, 240	40-60

  Note: Stein "Cathedral & Tombstone Radios" lists 4 bands for this model (model actually has 3 bands).

• Ext. procedencia de los datos
• Ernst Erb

• Procedencia de los datos
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Referencia esquema
• Rider's Perpetual, Volume 7 = 1936 and before

• Mencionado en
• Guide to Old Radios

• Documentación / Esquemas (1)
• Beitman Radio Diagrams, Vol. 01, 1926-1938 (Page 71)

• Documentación / Esquemas (2)
• Machine Age to Jet Age II (page 139.)

• Documentación / Esquemas (3)
• Cathedral & Tombstone Radios (page 119.)

• Documentación / Esquemas (4)
• General Electric Service Notes (1935-1939, pages 213-224)

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