KT90 Ei NOS Amazing sound KT version Ei KT90 second Generation QUAD + 2 Spares New in Boxes

You are looking at a SEXTET yes a QUAD +2 spares of the extremely sought after and fantastic sounding Ei KT-90's
these are NOS, original manufactured in the Yugoslavia; not the post war remakes or copies.
I've purchased them form a very respectable tube equipment manufacturer from his personal stash back about 6 or 7 years ago (maybe more . . ) I'm selling them due to my project never took off. so naturally being as cautious as I am i purchased 6 tubes. they are original manufacturer Ei relabel for British manufacturer Edicron (Edicron relabeled tubes from many European manufacturers.)
If you have an amp that uses KT-90. KT-88, 6550 and the family of tubes you can really enjoy these tubes
They test very strong, no shorts, no gas, and very well matched. with my B&K 550 tube tester. They are brand new in Relabeled Edicron boxes with the exception of me taking them out of the box for testing and listen for quality and microphonics.
Íf you can use these tubes and can afford them you are in for a real treat, i fell in love with their sound right out of the box, amazing bass and impact, incredible presence and mids, highs to die for, so pristine, airy, crystal clear and well extended. Read the reviews on these tubes and be aware of fakes as they command high prices, tey were prefered tubes for Jadis, Audio Research and other high end manufacturers.
Ladies and Gentleman, they don't make them like this anymore I am sorry to report.
They are new in box, one of the tubes has a broken guidepin (key), it will have to be careful when you put the tube in the first time not a really big deal, but I need to disclose this and it will explain the 9/10 rating I give them.
braking guidepins is a very common occurrence in older tubes as bakelite or component material is very sturdy but very fragile at the same time. I will mark the right insert posiiton on the tube with the broken guidepin.
This Ei set becomes a very attractive product at a very good deal, pay for 4 get 6 :)
Look at the prices of the EAT, or KR, Sophia, PsVane, or other Chinese treasure tubes and you will quickly see the value on these tubes,
this NOS set beats quality and sound of all recent manufacturer tubes period.
Look at my ratings on A-gone and E-bay and buy with confidence.
Due to age of the product (probably early - mid 1970's,) warranty or refunds are not being offered at this time; i'm sorry.
These are as represented tubes New in the Box from New Old Stock.
Shipping cost is responsibility of the buyer I make sure they're packed right. International Buyers I wil only ship to countries where shipping is secure, no China, No Italy . . etc. check with me before buying, please.

Thanks for your attention
Sincerely;
G.