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A430

Information - Help 
ID = 3917
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Tube type:  Triode, vacuum 
Identical to A430 = B424
Similar Tubes
Other base:
  A430_UX

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 (Codex=Eo)
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.1 Ampere / Direct / Battery =
Information source Taschenbuch zum Röhren-Codex 1948/49   
 
a430~~3.jpg
A430: Eigene Sammlung
Egon Strampe

 
1_259.png
A430: Telefunken Werkstattbuch
Wolfgang Bauer

 
triotron_1.png
A430: Triotron Röhrenkatalog von 1942
Wolfgang Bauer


from Just Qvigstad

Usage in Models 9= 1927 ; 1= 1928 ; 1= 1929

Quantity of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe):11


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