GR10G <p>The GR10G is a medium sized tube manufactured by ETL. It is unusual in that there is no solid back to the tube, so the digits can be viewed all the way around.</p>
GR10H <p>The GR10H Digitron is an early nixie tube made by ETL of England.</p>
GR10K <p>The GR10K is a medium-sized nixie tube made by the English company ETL.</p>
GR10W <p>This is the GR10W digitron - a medium-sized nixie tube by the English company ETL. Like its bigger brother the GR10G, this tube has a 360 degree anode mesh with no solid backing. Also like its brother, it has unusually high voltage and current requirements.</p>

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