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P440N

Information - Help 
ID = 11424
       
Country:
Austria
Brand: Triotron (tubes) = Brand of Schrack, Austria
Tube type:  Vacuum Pentode   Power/Output 
Identical to P440N = RENS1374d = E453 = APP4100 = L4150D
Similar Tubes
Normally replaceable-slightly different:
  APP4120
Other base:
  P440N_B-6pin ; P440N_B5+1

Base Europe 5-Pin (O5A, B5) (Codex=Fdo) Sidecontact
Filament Vf 4 Volts / If 1.1 Ampere / Indirect / Parallel, (AC/DC)
Description

Laut Triotron-Liste wurde diese Röhre auch mit der Anode an der Seitenschraube hergestellt, was sehr wahrscheinlich fehlerhaft ist.

 
Literature Taschenbuch zum Röhren-Codex 1948/49   
- - Manufacturers Literature   1935
 
p440_2.jpeg
P440N: From my collection.
Niclas Pettersson

 
e453_sock~~2.png
P440N: Telefunken Werkstattbuch
Anonymous 15 Collector

 
p440ndata.png
P440N: own collection
Peter den Boer



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