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ID = 67916
Brand: Werk für Fernmeldewesen (OSW, HF, WF) Berlin, VEB, RFT (Ostd.)
Tube type:  Numerals- and Symbols indicating tube   Indication 
Identical to Z581M
Similar Tubes
Normally replaceable-slightly different:
  LL552F ; LL553F
Other class quality (otherwise equal):
Multiple differences or of other kind:
  LL552 ; LL553

Base Wires
Filament --/--

Seitliche Anzeige, Zeichenhöhe: 13mm
Einheitenzeichen: A, F, H, S, V, Ω, Hz, s.
Mit rotem Farbfilter.

Dimensions (WHD)
incl. pins / tip
19 x 48 x mm / 0.75 x 1.89 x inch

z581m_rft_sockel.png Z581M: RFT-Datenblatt
Walter Fackler

Z581M: RFT-Datenblatt
Walter Fackler


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