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ID = 32003
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Screen-grid Tetrode   RF/IF-Stage 
Identical to A442K
Similar Tubes
Normally replaceable-slightly different:

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 Top contact screw type.
Filament Vf 4 Volts / If 0.06 Ampere
Description The A442K from 1932 differs in construction from the A442 and it is some 5mm shorter than the usual A442. Note that the earliest A442 of 1928 was 110mm overall in height but had a shorter base. 
Dimensions (WHD)
incl. pins / tip
x 125 x mm / x 4.92 x inch
Information source -- Collector info (Sammler)   
A442K: own collection
John Koster

Michael Schlör


from Just Qvigstad

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