radiomuseum.org

3NP4_CRT

Información - Ayuda 
ID = 25133
       
País:
Holanda
Marca: Philips; Eindhoven (tubes international!); Miniwatt
Tipo:  Projection Television picture tube B/W 
Idéntica a 3NP4_CRT
Válvulas similares
Multiple differences or of other kind:
  MW6-2
Fuente principal (es)
20.Mar.1948 : Electron Tube Registration List 642
Base Europe side contact, small P5 (Au V, 5E) Sidecontact.
Filamento Vf 6.3 Volt / If 0.6 Ampere / Indirect
Descripción 2 1/2 inch magnetic deflection projection CRT. P4 phosphor aluminized. 24KV typ. accelerating voltage on A2, -35 to -84 typ. grid voltage. -175V to +10V max heater to catode.
Advertised in Electronics, October 1948, as the basic component of Norelco Protelgram television projector.
Unknown European code for this EIA/RMA registered type; probably the MW6-2.
This is a quite unique RMA registered tube with side contact European base. 
Dimensiones
(Alt,Ancho,Prof.)
incl.pins/tip		 x 267 x 64 mm / x 10.51 x 2.52 inch
3np4.png 3NP4_CRT: Manufacturer's Literature
Emilio Ciardiello
Mas ...
Just Qvigstad
Uso en Modelos 3= 1948? ; 1= 1950? ; 1= 1962??
Número de modelos en Radiomuseum.org con esta válvula:5
Documentos para este componente
  A very early ad of the Norelco (North American Philips) Protelgram television projection system can be found in the second cover of Electronics, October 1948. The 3NP4 CRT is evidenced by the smiling girl. 284 KB
 
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