NOS Matched Pair EI Yugoslavia KT90 Vacuum Tubes - Quads Avail KT-90

Here we have a Gm and Plate Current matched pair of EI Yugoslavia KT90 vacuum tubes. These are getting very hard to find!

These are version / type IV with Three O getters and wing plates. This version was prone to issues. While we did screen them with a digital tube tester, I would still like to be upfront about them. If you receive a pair that red-plates you are more than welcome to return them for a full refund or exchange. If I had an amplifier that got up to 580+ volts I would have tested them myself.

If you would like a matched quad, please order a quantity of two. Please as us first ask the last few pairs may not match together to make a quad.

** Please note because these came from a bulk-pack they do not include boxed **

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