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APV4200

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ID = 7578
       
Country:
Hungary
Brand: Tungsram; Budapest (see also British T.)
Tube type:  High-vacuum Rectifier   Power-supply 
Identical to APV4200
Similar Tubes
Normally replaceable-slightly different:
  IW3
First year 22.Nov.1935 Wireless World (The), London (WW, 79) See also models.

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Em)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 2 Ampere / Indirect / Specified voltage AND current AC/DC
Description

Va <350 rms per anode; Ia <120mA mean

 
Information source History of the British Radio Valve to 1940   p.151
Wireless World (The), London (WW, 79)   1934 data
Babani, International Radio Tube Encyclopaedia
Taschenbuch zum Röhren-Codex 1948/49

150_1.png APV4200: Telefunken Werkstattbuch
Wolfgang Bauer


Just Qvigstad
apv4200_spec.png
APV4200: RVF-Röhrenbuch-M1,1947
Anonymous 15 Collector

More ...
Usage in Models 2= 1935 ; 1= 1936?

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):3
 

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