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ID = 77429
Tube type:  Numerals- and Symbols indicating tube   Indication 
Identical to LL551
Similar Tubes
Other shape (e.g. bulb type):

Filament No heater

Symbolanzeige: A V Ω % + - ~
Uza max: 150 V, Ik: 1.5 ... 3 mA, Ub: >170 V;
Made in Poland

Dimensions (WHD)
incl. pins / tip
27 x 34 x mm / 1.06 x 1.34 x inch
LL551: Radio Fernsehen Elektronik 6/76
Egon Strampe

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