A quad set, I sold my amp and don't need these tubes.
All were checked with my tube tester Heathkit TT1A Result are for all: 12.000/12.500. So is like new These are very rare today, as they are no longer being made. One of the best Kt 88 tubes! Quad set has about 60 hours on them. Printing on quad set is excellent,
The tubes came from Parts connection few years ago, sorry I lost the original boxes
The date on the tube are from 2006/2007/ and 2x 2005
All original from St petersbourg
350.00$ Nego
Buyer pay shiping expresspost insured/traking in Canada/USA $30.00