EI
KT90 EI Yugoslavia Platinum Matched Quad dual OO getter used tested 80-85%
KT90 EI Yugoslavia Platinum Matched Quad dual OO getter used tested 80-85%
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€599,50
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One perfectly matched quad (4 tubes) of genuine KT90 made by EI Nis tube factory in Yugoslavia in 90s, two are branded EI and two are branded Billington, they are all the same batch and the same etched codes, they come in original EI KT90 boxes.
Genuine EI KT90, with dual OO getter and zirconium getter, welded plates.
They are slightly used, tested 80-85% of NOS values, matched within 5%, very nice tubes with lot of life left, tested with 250V on plates and screen grids and -12V on grids.
