Who makes the best KT88.. MO Valve/ GEC, of course.. there are no better than the originals..Of course they are VERY expensive, and hard to find, best source I know of is Andy Bowman at Vintage Tube Services.. http://vintagetubeservices.com/
Or is your question who makes the best current production KT88, well the most expensive are, as was pointed out the EAT tubes, the Psavane chinese tubes are pretty good as are the Gold Lion Russian reissues.
Or is your question who makes the best current production KT88, well the most expensive are, as was pointed out the EAT tubes, the Psavane chinese tubes are pretty good as are the Gold Lion Russian reissues.