INS-1 current limiting resistors

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Nigel

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Jun 16, 2020, 2:08:42 PM6/16/20
to neonixie-l
Hi

I was going to use 270K resistors with my INS-1s with an 180v supply.

As I want to use them in pairs as the 'colons' in my Nixie clock project, I'm now thinking about using them in parallel with a 150K resistor.  That would save me space on the PCB.  Does this sound ok ?

Thanks

gregebert

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Jun 16, 2020, 2:23:37 PM6/16/20
to neonixie-l
It's best to use a separate resistor for each device, because one could easily hog current from the other due to mismatching and aging. Is your PCB really that tight you cant find room for 2 more resistors ?

Nigel

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Jun 16, 2020, 4:36:38 PM6/16/20
to neonixie-l
I did wonder about that being an issue thanks. Yes, I can squeeze in more resistors.
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