Z5680M Lab sample

[SWISSNIXIE - Jonathan F.]

There is currently a ebay acution for a Z6580M lab sample...

https://www.ebay.com/itm/232586867055


Enjoy :)

[Tomasz Kowalczyk]

This is a bit insane. I understand that this tube is rare and all, but as this is just a single of unknown properties (it might have gas composure resulting in short life) I can't think why would anyone buy it - with that money, you could buy a set of 6 Z568Ms! 

If this thing ends up being sold for this money, I'll have to consider selling all my "rares".

BTW. This doesn't necesarely have to be Z568M early version, curved 6 and 9 suggest that it is indeed a Z568M ancestor, however digit 4 is not big-tube-RFT-like. Z568M and Z566M use a 4 with vertical line not connected to top point. Their smaller tubes used the "closed" version. (Z590M breaks the trend with curved "6" and "9" again). 

[jb-electronics]

...and at a whoping 1000 EUR. I think it is quite interesting, but I would hardly call this a lab sample. It is a small variation of the usual internal structure, and the exhaust tubulation looks somewhat semi-professional. I doubt it would sell for more than 200 EUR in an auction to be honest.

But who knows, maybe someone is willing to pull the trigger on this one.

Cheers
Jens

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[Tomasz Kowalczyk]

OK, I can see WHY (because it's rare and it feels good to own the only known existing tube in the world), but it doesn't provide anything more than pride of owning it. The money is just too serious to buy it as a paper-weight, at least for me.

[SWISSNIXIE - Jonathan F.]

I posted it just because it might be interesting to see this


Yes the price is crazy, and personally i never would buy a tube for that price, its just not relative...
I own a GI-IIB Engineering Sample and that was nearly for free because the seller wanted it to have a good place not make a fortune :)