Hello.
Connections look fine, since two symbols light up I probably got the anode
right. Also if I plug a B5092 all digits light up.


> How much voltage are you applying ? If it's too low, some cathodes wont
> fire. 150V-170V is usually enough, but a used tube may need more.
>

My lumos.sk supply is currently set at 164V. I had tried at 170V and still
got the same result.


> As long as you limit the current to a safe value (0.8mA for the 5094), you
> can apply higher voltage to a tube to fire it. As an example, my first
> nixie clock uses 340V for the anode supply, even though the tubes only
> require about 150V to run.
>

Fine. I will crank up the voltage to the maximum, probably 180V and adjust
the resistor accordingly (37kR). If that's not enough I will begin stacking
up batteries ...

I will report my findings. Glad to be learning something new (but old).
Paolo

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