Do we know what the green phosphor is P1, P31 or something else?
On 18/07/2024 15:26, gregebert wrote:
Interesting that the supply mentions 3.2kV; the nominal anode voltage
is 1850 volts. As with nixie tubes, I suspect the current is the
critical parameter as it determines the brightness (amount of phosphor
burn). And, like nixies, there is a minimum voltage required for
illumination. So, there isn't an exact operating voltage that must be
strictly adhered-to. Also, I have not found any info that suggests
harmful radiation (X-rays) are produced anywhere near 3kV, so I
wouldn't worry about getting nuked from a NIMO tube or small
monochrome CRT.
I've run my NIMOs just below the 30uA current and in the vicinity of
1850V for less than 50 hours of operational time, and with a UV light
source I can see slight phosphor burn. I dont run it as a clock very
often, fearing that I will either burn the phosphor or burnout the
filaments, yet at the same time I do want some enjoyment out of this
multi-year project. Decisions, decisions......
On Thursday, July 18, 2024 at 6:49:27 AM UTC-7 Robert Norman wrote:
On EBay with four tubes
https://www.ebay.co.uk/itm/305672059360?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=2izFn68PQ-6&sssrc=4429486&ssuid=U1YeAcPgQ5y&var=&widget_ver=artemis&media=COPY
<https://www.ebay.co.uk/itm/305672059360?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=2izFn68PQ-6&sssrc=4429486&ssuid=U1YeAcPgQ5y&var=&widget_ver=artemis&media=COPY>
Not my auction
Rob
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