I have a few quads available. All of these were just tested and matched.
This is the very rare EI KT90 Type II that was hand selected from EI and sold for owners of Jadis/Cary/Manley/etc. It is one of the finest and most reliable tubes ever produced, and is considered to be one of the very best 6550/KT88 types, only to be compared with Tung Sol Black Plate 6550's or GEC KT88's. These tubes can play with very high voltages and they last a lifetime. I have seen these tubes pulled after 10 years and test new!
Please see the photos of exactly what you will be getting.
$400 for a matched quad. Price is FIRM!
Add 3% for Paypal and $15 for insured shipping.
This the lowest you will find this tube, and feel free to hold onto them and sell them for twice as much down the road!
Thanks!
