IN-7B tubes display the following scientific symbols: Ω,V,Hz,S
Working Voltage: 150V- 170V. Working Current: 2.5 mA. These large nixie tubes look very beautifully and have warm, comforting orange/violet glow.
Electrical parameters:
Brightness >=100cd/m^2
Angle of visibility >= 90 deg
Power supply voltage >= 200 V
Discharge appearance voltage <= 170 V
Discharge voltage: <= 150 V
Display current <= 4 mA
Operations current: Running from DC 4 - 7 mA
Running from AC with 50 Hz (average value) 2 - 4 mA
Life time >= 5000 hours