>>Had that in Cockroft-Walton (sp?) multipliers for instruments in space.
>>carbon resistors specified for arc-over reasons.
>
>Probably solid-carbon though - film resistors are not good
>at HV, due to poor surge capability, and spiral-cut ones
>can arc between turns.  My marx generator
>(www.electricstuff.co.uk/marxthree.html) used to eat
>10KV-rated film resistors due to surge currents - after
>replacing with solid-carbon ones it's been fine.

Yeah, I think they were. They were the ones that relate to the story a while
back about resistor values of carbon resistors, and I told a tale about
checking their resistance as they were warmed up to expel moisture.

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