radiomuseum.org

3NP4_CRT

Informazioni - Aiuto 
ID = 25133
       
Stato:
Olanda
Produttore: Philips; Eindhoven (tubes international!); Miniwatt
Tipo:  Valvola per TV B/N a proiezione 
Identico a 3NP4_CRT
Valvole simili
Multiple differences or of other kind:
  MW6-2
Prime informazioni
20.Mar.1948 : Electron Tube Registration List 642
Zoccolo Europe side contact, small P5 (Au V, 5E) Sidecontact.
Filamento Vf 6.3 Volt / If 0.6 Ampere / Indirect
Descrizione 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. 
Dimensioni
(LxAxP)
incl.pins/tip		 x 267 x 64 mm / x 10.51 x 2.52 inch
3np4.png 3NP4_CRT: Manufacturer's Literature
Emilio Ciardiello
Segue ...
Just Qvigstad
Utilizzo nei modelli 3= 1948? ; 1= 1950? ; 1= 1962??
Numero totale di modelli di Radiomuseum.org che utilizzano questa valvola:5
Documenti per questo 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
 
[rmxtube-en]
  
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