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  1. Genalex Gold Lion KT88/6550 Top D Foil Getter Tested Excellent

    These tubes are carefully tested on my TV-7/U at 72-72/44 min good. What you see is what you get.

    eBay

  2. GEC KT88 6550 Clear Glass Cup Getter Black Plates One Tube

    The tube were carefully tested on my TV-7/U at 60/44 min good (44=65%; 66-68=100%). They sound wonderful on my Mc 275 with other 3 new tubes. Super rare and hard to find now.

    eBay

  3. Genalex Gold Lion KT88 6550 Brown Base Dirty Black Plate NOS Tested Excellent

    They sound wonderful on my Mc 275. Super rare and hard to find now. The tubes don’t go with original boxes.

    eBay

  4. Genalex Gold Lion KT88 6550 Clear Glass Triple O Getter Tested NOS Matched Quad

    They sound wonderful on my Mc 275. Super rare and hard to find now. The tubes don’t go with original boxes which is clearly shown in the photos.

    eBay

  5. KT-88 GENALEX GOLD LION POWER TUBE NOS

    It has gold plated grids. It is an excellent equivalent to the 6550 tube. They do not carry technical information. I apply maximum efforts to work better and better. Weight: 110 g. Russia 5 % 50 % 40 % 5 % 0 %.

    eBay

  6. Pair GENALEX GOLD MONARCH KT88 KT-88 Tubes UK Made w Orig Boxes TV7 TESTED

    For sale is a rare pair of Genalex Gold Monarch KT88 vacuum tubes, made in England. The boxes are very old, and even taking the tubes in and out of the them, they are falling apart. They tested STRONG where the minimum for a good tube is 44.

    eBay

  7. Genalex Gold Lion KT88 6550 Black Plates Top Cup Getter Tested Excellent Matched

    These tubes are carefully tested on my TV-7/U at 60-62/44 min good (44=65%; 66-68=100%) and 76mA-76mA (reaching to 80mA-81mA after 15 minutes burning up) as shown in the last photo. They sound wonderful on my Mc 275.

    eBay

  8. Genalex Gold Lion KT88 6550 Black Plates OOO Getter Tested Excellent Full Box

    They sound wonderful on my Mc 275. Super rare and hard to find now. The tubes again go with original boxes like in the photos.

    eBay

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