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Wavemeter Decremeter (Military) Type CN 259

Wavemeter Decremeter Type CN 259; National Electric (ID = 1978230) Equipment Wavemeter Decremeter Type CN 259; National Electric (ID = 1978232) Equipment
Wavemeter Decremeter Type CN 259; National Electric (ID = 1978233) Equipment
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Wavemeter Decremeter Type CN 259; National Electric (ID = 1978230) Equipment
National Electric: Wavemeter Decremeter Type CN 259 [Equipment] ID = 1978230 933x395
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For model Wavemeter Decremeter (Military) Type CN 259, National Electric Signaling Co. (NESCO) or Supply; Washington, D.C.
 
País:  Estados Unidos
Fabricante / Marca:  National Electric Signaling Co. (NESCO) or Supply; Washington, D.C.
alternative name
 
National Electric Signaling Co. || National Electrical Supply Co.
Año: 1917 Categoría: Aparato de medida y servicio (Equipo de laboratorio).
Principio principal Detector de Galena o semi-conducteur
Gama de ondas OM y OL
Especialidades
Tensión de funcionamiento Pilas / 1.5 Volt
Altavoz - Este modelo usa amplificador externo de B.F.
Potencia de salida
de Radiomuseum.org Modelo: Wavemeter Decremeter Type CN 259 - National Electric Signaling Co
Material Madera
Forma Formas varias descritas en notas aparte.
Ancho, altura, profundidad 15.5 x 11 x 9 inch / 394 x 279 x 229 mm
Anotaciones

This is a wavemeter and Kolster decremeter that was used to check and calibrate early wireless spark transmitters. The wavemeter checks the transmitter frequency and the decremeter checks the quality of the transmitted signal. At the time, a spark transmitters decrement (e.g. how rapidly the spark energy dissipates between sparks), was regulated to avoid generating interference with other transmitters. This device was often carried on-board ships by wireless inspectors to test the ships spark transmitters.

Receiving range: 85 to 5,000 meters

Modelo creado por Richard Groshong. Ver en "Modificar Ficha" los participantes posteriores.



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