For sale is one perfectly matched quad of genuine EL34 / 6CA7 made by EI Nis tube factory in Yugoslavia in 90s.
They are from service packaging of 50 pieces in original yellow boxes for every single tube. Genuine triple mica, with dual OO getter. Mica spacers with 12 support points, stapled plates, three holes on plates, black base with central hole in guiding pin like vintage Mullards.
I have few 50 pcs service packagings of these tubes (all the same date codes!!!), and all quads I have are carefully tested and matched by plate current on my Metrix U61-B tester. Due to big number of tested tubes, they are matched within 5% or less!!! These are very strong examples, selected from big number of the same batch tubes!
It's really hard to find four practically exact genuine NOS EI EL34 with perfect prints and the same etched codes today, be fast and take this opportunity while they are still in stock!!!
These tubes were sold under Siemens, Philips and few other brands in 90s, when West European plants were closed and there were still high demand for these quality EL34 / 6CA7.
See also my other auctions and visit my eBay store for more vintage tubes and tube parts. More than 200000 tubes in stock and more than 35 years of experience.
If you buy any item on ebay from me and for if you are not fully satisfied for any reason or have any complains, please send me message before leaving negative or neutral feedback or opening a case. I really do care about your satisfaction and I’ll do my best to solve any kind of problem.