A440

Tube ID = 3918


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Identical to	A440

Filament
Description	A440 is listed in "Tandbergs Radio Service Handbook" and seems to be the same as A440N (~ REN904). Text in other languages (may differ)

Telefunken Werkstattbuch
Wolfgang Bauer

Usage in Models (calculation each 25th of the month)	1= 1933 ;
Number of Models at Radiomuseum.org with this tube (valve, valves, valvola, valvole, válvula, lampe): 1

No further Information for

A440

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