Crystal (Quartz) FT-241
MILITARY U.S. (different makers for same model)
- País
- Estados Unidos
- Fabricante / Marca
- MILITARY U.S. (different makers for same model)
- Año
- 1943 ?
- Categoría
- Pieza de radio (no módulo)
- Radiomuseum.org ID
- 177437
FT-241 in box, fitted in BC-604
inside the FT-241
- Gama de ondas
- - no hay
- Tensión de funcionamiento
- No necesita alimentación
- Altavoz
- - - No hay salida de sonido.
- Material
- Materiales diversos
- de Radiomuseum.org
- Modelo: Crystal FT-241 - MILITARY U.S. different makers
- Forma
- Formas varias descritas en notas aparte.
- Ancho, altura, profundidad
- 29 x 39 x 12 mm / 1.1 x 1.5 x 0.5 inch
- Anotaciones
-
FT-241 crystals, black series, were used in the BC-604 with a working frequency 20 - 27.9 MHz, 80 "channels" numbered 0 - 79. Their fundamental frequency is 370.370 - 516.666 kHz, to be multiplied by 54.
FT-241 crystals, brown series, were used in the BC-684 with a working frequency 27 - 38.9 MHz, 120 "channels" numbered 270 - 389. Their fundamental frequency is 375.000 - 540.277 kHz, to be multiplied by 72.This crystal type is far not as indestructible as the FT-243 type. The small silvered crystal-plate is welded-connected with two spring-type wires, but these connections are often broken after many years.
These crystals have a very interesting fundamental frequency range to compose sharp IF- filters around 450 - 475 kHz.
- Peso neto
- 0.010 kg / 0 lb 0.4 oz (0.022 lb)
- Autor
- Modelo creado por Jan Terranea. Ver en "Modificar Ficha" los participantes posteriores.
- Otros modelos
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Donde encontrará 393 modelos, 345 con imágenes y 210 con esquemas.
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Colecciones
El modelo Crystal (Quartz) es parte de las colecciones de los siguientes miembros.