|  |  | GN6 Standard Telephones (STC) side view nixie with 14 mm digits 0 - 9. No decimal point is provided. Cathode currents should be in the range 1.25 mA (for full coverage) to 2.5 mA (average). The normal maintaining voltage is 115 V. | 
| Pin out (pins are numbered clockwise from the gap looking at the tube from below): | 
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| Standard Telephones (STC) side view nixie with 10 mm. symbols
    +, - and ~. Recommended cathode current is 2 mA. The normal maintaining voltage is 140 V. On the sample shown here there are only 4 pins, the remaining 3 pins do not protude from the base, although they are present internally. The pin out (pins are numbered clockwise from the gap, looking at the tube from below) is :- | 
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