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LL553

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ID = 77428
       
Country:
Poland
Brand: Dolam, Unitra-DOLAM; Wrocław (Breslau)
Tube type:  Numerals- and Symbols indicating tube   Indication 
Identical to LL553
Similar Tubes
Normally replaceable-slightly different:
  LL553F
Multiple differences or of other kind:
  Z581M

Filament --/--
Description

Clear glass; 'W', '㎐', S', 'F', 'H', 'z' symbols

 
Text in other languages (may differ)
Dimensions (WHD)
incl. pins / tip
27 x 34 x mm / 1.06 x 1.34 x inch

ll553.png
LL553: Radio Fernsehen Elektronik 6/76
Egon Strampe

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