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ID = 51441
Brand: Splendor Lampenfabriek; Nijmegen
Developer: Splendor Lampenfabriek; Nijmegen 
Tube type:  Screen-grid Tetrode 
  Ca. 1925 up to 1945 very rare. ***
Identical to WS300
Production stop 1929

Base Europe 5-Pin , B5 (Eu O, F, O5A) 1928 Top contact screw type.
Filament Vf 4 Volts / If 1 Ampere / Indirect
Description HF amplification. With B5 base and top cap and with B4 base + sidecontavt + top cap. 
Information source - - Manufacturers Literature   1929
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