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ID = 37230
Brand: Philips; Eindhoven (tubes international!); Miniwatt
Tube type:  Triode, vacuum 
  Ca. 1925 up to 1945 rare.
Identical to A430_Philips
Similar Tubes
Normally replaceable-slightly different:
Successor Tubes 1927   A435  

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914 Sidecontact and top contact.
Was used by Radio/TV-reception etc.
Filament Vf 4 Volts / If 0.06 Ampere / Direct / Battery =

The side contact on the base is internally connected to the normal anode/plate pin in the base to permit use either top cap anode operation or normal 4-pin operation using a wire link.
Va 50 to 150V;
Typ:- Va 150; Vg 0V; Ia 1.5mA; Ra 60k; gm 0.5mA/V.

Dimensions (WHD)
incl. pins / tip
41 x 112 x 31 mm / 1.61 x 4.41 x 1.22 inch
Information source - - Manufacturers Literature   R198H 30-12-1926
Babani, International Radio Tube Encyclopaedia   

a430-a435base.png A430_Philips
Peter den Boer

Just Qvigstad
A430_Philips: own collection
Peter den Boer

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