Manufactured by Rodan-Okaya, this is a medium sized nixie tube with a digit height of 35mm. This is the long-life version of the GR-11, and was later known as the CD94.

Digit size 35mm
Min current 3.5mA
Max current 6.5mA

Data sheet excerpt:


Datasheet for the GR-11


2 Replies to “GR-211”

  1. inhave been given qty of GR-211 tubes, but no socket bases .
    i see your pics include tubes mounted in socket,
    can you pls advise the typemof socket and if these are available?

    1. It is a footprint used in PCB design. It specifically uses something called ‘socket pins (1mm)’ that can be found on eBay that fit the pins on the tube.

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