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HB105

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ID = 40222
       
 
   
Tube type:  Numerals- and Symbols indicating tube   Indication 
Identical to HB105
Successor Tubes Z550M  

Base SPECIAL TUBEBASE in general
Was used by Industrial
Filament
Description

Very early Pixie indicator by Haydu Brothers. The prefix itself, H-B, looks to be the acronym of Haydu Brothers. Designed as low cost indicator with single etched anode plate and pins terminating in short cathode rods on its back side, one small rod behind each digit cut out in the plate.
See also H-B106.

 

Collection of

 
hb105_illuminee_ph0.jpg

HB105
 

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