On Tue, Aug 10, 2010 at 8:14 AM, DanielK <kuriloff@...> wrote:
For a direct drive 6 tube IN-8 Nixie clock and a supply voltage between
170 and 180 v, what is the optimal anode resistor value?
I seem to recall that to arrive at a current of 2.5ma with a 180v supply, I
used to use a 12k resistor. YMMV.
The best idea when you're working with a new tube or new supply design is to
work out what you "think" the ideal resistor should be via ohms law, and
then install a small potentiometer of around that value. You will find that
the maintenance voltage of a nixie will decrease as current increases, so
determining the ideal anode resistor value can be something of a moving
target.
-Adam
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