Telefunken vacuum tube E88CC-TK; NOS versus brand new.

I’ve used 6922 tubes for many years, and these are the best I’ve ever purchased. In regard to NOS being much more expensive; I’m not going there because I still believe NOS are better if they are genuine because of production and material available. While that would make them last longer, they may not be audibly better than a new tube coming from the same factory.

As I look at it, I can buy 5.8 tubes for the price of one NOS; I don’t think I’ll even bother to find out if they last longer, because I have doubts about them sounding better than these.


Thanks for your comments.

   "........they may not be audibly better than a new tube coming from the same factory."           What factories exist, that were owned by the reputable manufacturers (ie: Telefunken, Mullard, Genelex, etc) whose names ALONE have been purchased?          Perhaps I'm missing something.

    https://www.telefunken-elektroakustik.com/telefunken-introduces-new-black-diamond-tubes-summer-namm

Telefunken never had a factory, or-manufactured a tube, in Slovakia.   All of their assets, during their vacuum tube production years, were located in Germany.      There is no, "same factory".      The name/logo wasn’t even purchased/licensed, for use in the USA, until 2000.     It was well after that, JJ (et al) contracted to make tubes for ’Telefunken Elektroakustik’.    https://en.wikipedia.org/wiki/Telefunken#:~:text=Locations%20and%20manufacturing%20plants,-FE%20I%20....      I’m not saying there’s anything wrong with their tubes.      BUT- they’re NOT Telefunkens, in anything but name/logo.

op

https://www.adorama.com/tfe88cctkq.html?gclid=CjwKCAjw8-78BRA0EiwAFUw8LK11bf0-Cy4Geg8n2lXvcYvr-x5tG5...

^^^^^what you bought -- it is a gold pin sovtek/electroharmonix made russian tube

https://tubedepot.com/products/electro-harmonix-6922-eh-gold-pin-preamp-vacuum-tube?gclid=CjwKCAjw8-...

^^^^^ same same - probably one of the best modern 6dj8 types... certainly well qc’d at the plant so as to justify the price

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just so you know op - a real german made tele small signal tube will have a 4-seamed top and usually a diamond mark on the glass circle at the bottom of the glass envelope inside the 9 pins

https://www.tubemonger.com/Telefunken_E88CC_6922_MINT_NOS_NIB_1968_ULM_Diamon_p/1190.htm