But with a minimum of work. These are used tubes taken from old equipment. Tubes made in the 70's and 80's.
Principle of Operation: neon gas, cold cathode. Displayed digits: arabic numerals from 0 to 9.Color of a luminescence: orange. Luminance: at least 100 cd/m². Viewing angle: at least 60°. Power supply voltage: at least 200V. Discharge voltage: no more than 170V.
Discharge maintenance voltage: no more than 150V. Indication current: no more than 2.5mA. Comma indication current: no more than 0.3mA. Operating time - at least 10,000 hours.