Greg,
I'd like to see the schematic of your current limiting.
Jon
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To pos
Yes, I typically use a PMOS device to regulate the current at the anode.
You can also use a PNP, but the non-zero base-current needs to be
accounted-for. I drive the gate with an isolated DCDC converter at roughly
-12V; to make the current adjustable you can use a pot to drive the gate.
Using a
Hello All,
Thanks for adding me to this group.
I would like to ask for sharing and perhaps chipping in to my crowdfunding
project for opening glassblowing workshop.
It not planned being commercial as such. It is rather a very unique and
sadly expensive hobby of mine.
There is also an urge to rei
I have added 17 tubes at 26.March, and 4 tubes today, including the "GI-11B
Engineering Sample"
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Thanks, Indeed, a current source seems to be a good idea. Did you put a
transistor in the anode line? I'm wondering what the anode current does
with a normal current limiting resistor when lighting e.g. the '1' and the
'4'. The '1' character has only about the half of surface area of the '4'.
S
On Wednesday, April 6, 2016 at 11:20:31 AM UTC+2, Eddy wrote:
>
> Looking at different websites, translated IN-18 datasheets, I get more and
> more confused what the correct direct drive cathode current is.
> Here at tube-tester: http://www.tube-tester.com/sites/nixie/data/in18.htm the
> nomina
