19mm numeric tube manufactured by ETL

The GR10K is a clear glass numeric nixie tube manufactured by ETL. The tube is enclosed in black paint or black shrink tube for better contrast. This tube is very rare, special and beautiful. It has a relatively low operating voltage and is missing the anode grid, which is very uncommon, but gives the tube an unique look.
Brand / Manfacturer ETL
Same Types
Likely Tyes
Symbol height in mm 19
Characters / Symbols 0-9
Decimal point none
Base / Socket B17A
Starting Voltage (typ) 150 V
Maintaining Voltage (typ) 140 V
Current per Segment 1.4mA
Reccomend Resistor 8.2kOhm = 1.2mA