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ID = 83721
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Developer: Philips; Eindhoven (tubes international!); Miniwatt 
Tube type:  Vacuum Pentode   Power/Output 
Identical to B443N
Similar Tubes
Other shape (e.g. bulb type):
Other base:
Predecessor Tubes B443  

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.15 Ampere / Direct / Specified voltage AC/DC

The original B443 one was on the market as from 1927, this kind of internal construction was discontinued in the later years.

On the other hand, there was still a need for replacement in the older radio sets. So Philips started a new production line, but with a more modern technique. The letter "N" was added which means new, although the electrical performance should be equal to the genuine B443.

Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
x 103 x 50 mm / x 4.06 x 1.97 inch
Information source -- Collector info (Sammler)   

b5~~72.png B443N: Fin Stewart
Fin Stewart

Just Qvigstad

Collection of



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