ETL GR10A Register Tube  
Written by AnubisTTP on 2006-09-26  


Though it resembles a dekatron, the GR10A is actually a register tube - basically a Nixie or Pixie tube shaped like a dekatron. Register tubes were designed to provide a consistent display when dekatrons were used in conjunction with beam switching tubes or hard valve decades in the same counter. The visible glow extinguishes above ~50 kHz, and reappears at lower speeds.

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