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ID = 30755
Great Britain (UK)
Brand: Hivac Ltd.; Harrow-on-the-Hill
Tube type:  Numerals- and Symbols indicating tube   Indication 
Identical to XN12
Similar Tubes
Normally replaceable-slightly different:
  CD74 ; LD689 ; XN11

Base Wires only.
Filament No heater
Information source -- Collector info (Sammler)   
XN12: Private collection
Emilio Ciardiello

More ...

Usage in Models 1= 1975??

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):1

Collection of a member from FIN

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