Thanks for the additional color on these. I was debating on picking one up
as a novelty, but may hold off now based on your comments.
On Sun, Mar 11, 2018 at 3:44 PM, Dekatron42 <martin.forsb...@gmail.com>
> I've bought a few of these and other similar types for just RMB 25 from
> China, the digit height is only 33mm, I had the datasheet translated by a
> friend, it says so at the end of the datasheet and I can confirm it from
> the tubes I have.
> They are very fragile inside as the wires connecting the digits easily
> break from shaking during shipping, and while handling, and the wires also
> easily short against each other or the internal structures either killing
> some digits or letting two or more light at the same time - they are
> prototype quality and would need a lot more design to become good enough
> for serial production. It seems like the wires break due to being under
> strain and that the welding has punched through much of the wire making it
> snap easily.
> They are really quite poor quality for being "prototypes" even if they are
> rare. So I would definitely wait for the price to come down - I have enough
> for a clock and some spares but the poor quality has had me waiting to find
> more at a reasonable price!
> There are others with letters/texts inside, I have an SZ-3 (which has some
> broken wires) which shows the texts: Mn, Mo, P, S, Ni, C, Cr, Cu, Si & O
> (mine only shows Mn, P, S, Ni, Cu, Si & O) . I also have a much rarer
> (mega, ultra, super rare ;) ) prototype of the SZ-2, not marked, but with
> the digits made up from wires instead of from etched metal and no Anode
> shield and a rounder glass envelope, otherwise it is identical to the SZ-2,
> see photo below.
> These Nixies fit the Russian RSH-32 socket.
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