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ID = 49957
Tube type:  Triode, vacuum 
Identical to M-4242A

Base UV-Base (4 Pins+Bayonet, USA 1914 WE)
Filament Direct
Description Standard Electrica S.A., Spain 
Dimensions (WHD)
incl. pins / tip
57 x 195 x mm / 2.24 x 7.68 x inch
Weight 190 g / 6.70 oz
Information source - - -   
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Klaus Rüdiger


from Just Qvigstad

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