Kt66

4

Kt66 for sale on largest auction and classifieds sites

Home / / Kt66 refurbished & used for sale | For Sale USA
Pair genalex england kt66 gray - genalex,

Pair genalex england kt66 gray - genalex,

$495.00
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Genalex gold lion - gold, kt66

Genalex gold lion - gold, kt66

$99.99
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Pair mullard kt66 vacuum - vacuum, tubes

Pair mullard kt66 vacuum - vacuum, tubes

$399.00
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Tad kt66 premium matched - premium,

Tad kt66 premium matched - premium,

$93.95
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Matched pair gec cv1075 - gec,

Matched pair gec cv1075 - gec,

$650.00
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Sovtek tubes 4 - sovtek,

Sovtek tubes 4 - sovtek,

$144.00
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Rare mullard el37 tube - mullard,

Rare mullard el37 tube - mullard,

$225.00
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Electronic kt66 beam power - kt66,

Electronic kt66 beam power - kt66,

$99.99
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Matched pair tube - pair,

Matched pair tube - pair,

$128.00
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Brand new tung sol - brand, reissue

Brand new tung sol - brand, reissue

$160.00
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Nos platinum match pair - nos, kt66

Nos platinum match pair - nos, kt66

$400.00
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Genalex gold lion kt66 - genalex,

Genalex gold lion kt66 - genalex,

$129.99
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Brimar 6l6g cv1947 - 6l6g, kt66

Brimar 6l6g cv1947 - 6l6g, kt66

$390.00
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Matched quad tube amp - quad,

Matched quad tube amp - quad,

$256.00
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Gec kt66 british old - kt66, stock

Gec kt66 british old - kt66, stock

$250.75
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Kt66 cv1075 gec nos - kt66,

Kt66 cv1075 gec nos - kt66,

$665.25
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Gec kt66 nos - gec,

Gec kt66 nos - gec,

$475.00
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Sunvalley mono blocks tubes - sunvalley,

Sunvalley mono blocks tubes - sunvalley,

$1795.00
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Matched quad kt77 power - matched,

Matched quad kt77 power - matched,

$90.00
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Platinum factory match quad - platinum,

Platinum factory match quad - platinum,

$258.00
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Kt66 lve vintage retro - kt66, style

Kt66 lve vintage retro - kt66, style

$201.23
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Kt66 cv1075 gec matched - cv1075,

Kt66 cv1075 gec matched - cv1075,

$672.50
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Genalex gold lion kt66 - gold,

Genalex gold lion kt66 - gold,

$325.00
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Genalex gold lion - lion, new

Genalex gold lion - lion, new

$285.00
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Genalex gold lion kt66 - gold, power

Genalex gold lion kt66 - gold, power

$24.95
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Pair tad rt824 kt66 - rt824, vacuum

Pair tad rt824 kt66 - rt824, vacuum

$85.00
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Kt66 gold tad - kt66,

Kt66 gold tad - kt66,

$100.88
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Matched pair gec cv1075 - pair,

Matched pair gec cv1075 - pair,

$650.00
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New matched pair genalex kt77 - new,

New matched pair genalex kt77 - new,

$59.99
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Kt88c vacuum tube valve 4pcs - tube,

Kt88c vacuum tube valve 4pcs - tube,

$335.00
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Tad premium selected factory - premium,

Tad premium selected factory - premium,

$299.00
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Relco mullard genalex - relco, kt66

Relco mullard genalex - relco, kt66

$1495.00
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Kewtech kt66dl 1 - kewtech,

Kewtech kt66dl 1 - kewtech,

$799.99
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Rca 6l6gc 7581a kt66 beam - 6l6gc/7581a,

Rca 6l6gc 7581a kt66 beam - 6l6gc/7581a,

$45.00
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7581a kt66 6l6gc - ge, tube

7581a kt66 6l6gc - ge, tube

$75.00
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Pair kt66 power - of, vacuum

Pair kt66 power - of, vacuum

$111.90
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Kt66 grey glass matched - kt66,

Kt66 grey glass matched - kt66,

$935.00
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Gec kt66 pair - gec, vacuum

Gec kt66 pair - gec, vacuum

$398.00
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Rare nos 6l6 - 6l6g, german

Rare nos 6l6 - 6l6g, german

$249.64
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Sovtek tube tv7 - kt-66, gt

Sovtek tube tv7 - kt-66, gt

$40.00
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Marconi kt66 tubes - marconi,

Marconi kt66 tubes - marconi,

$2799.00
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Genalex gold lion kt66 - genalex,

Genalex gold lion kt66 - genalex,

$120.00
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Relco genalex tube - kt-66,

Relco genalex tube - kt-66,

$600.00
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Kt66 genalex gold lion matched - gold,

Kt66 genalex gold lion matched - gold,

$259.00
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6p3s tubes matched quad - tubes,

6p3s tubes matched quad - tubes,

$69.00
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Kt66 ars replaces - 1,

Kt66 ars replaces - 1,

$40.95
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Kt66 electronic matched - kt66,

Kt66 electronic matched - kt66,

$114.58
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Rare italian vintage mullard - vintage,

Rare italian vintage mullard - vintage,

$212.54
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Kt66 power vacuum tube - power,

Kt66 power vacuum tube - power,

$55.95
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Strong genelex gold lion kt66 - strong,

Strong genelex gold lion kt66 - strong,

$149.99
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Kt66 electronic matched - kt66, jj

Kt66 electronic matched - kt66, jj

$57.79
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Quad kt66 power vacuum - kt66,

Quad kt66 power vacuum - kt66,

$223.80
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Tube amp higher temp - tube, dampers

Tube amp higher temp - tube, dampers

$22.99
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Rft 6l6 6l6gc - 6l6gc, 6l6g

Rft 6l6 6l6gc - 6l6gc, 6l6g

$279.00
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Matched pair vacuum tube - matched,

Matched pair vacuum tube - matched,

$119.61
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Vintage genalex gec - ,

Vintage genalex gec - ,

$249.00
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Clean super matched - super, pair

Clean super matched - super, pair

$179.00
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Genalex gold lion - gold, new

Genalex gold lion - gold, new

$132.50
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Ruby kt66c kt66 audio - ruby, power

Ruby kt66c kt66 audio - ruby, power

$250.00
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Kt66 marshall premium matched - marshall,

Kt66 marshall premium matched - marshall,

$211.32
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Kt66 lve vintage retro style - kt66,

Kt66 lve vintage retro style - kt66,

$100.07
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Lot kt66 tubes - lot,

Lot kt66 tubes - lot,

$3750.00
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Brand new tung sol reissue - brand,

Brand new tung sol reissue - brand,

$107.54
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Genalex gold lion kt66 - genalex, power

Genalex gold lion kt66 - genalex, power

$246.98
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Vintagenos usa 7027a - 1x,

Vintagenos usa 7027a - 1x,

$349.00
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New reissue genalex - new, lion

New reissue genalex - new, lion

$71.97
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10pc 8pin octal tube - 10pc,

10pc 8pin octal tube - 10pc,

$31.85
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Tube amp dampers for - 4,

Tube amp dampers for - 4,

$12.99
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Kt66 guitar tubes - guitar,

Kt66 guitar tubes - guitar,

$79.25
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2pcs matched audio - matched,

2pcs matched audio - matched,

$248.99
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Electron tube tubes new - kt-66, tubes,

Electron tube tubes new - kt-66, tubes,

$400.00
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Shuguang kt66 z - 2,

Shuguang kt66 z - 2,

$107.80
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New current matched - matched, pair

New current matched - matched, pair

$150.77
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Genalex gold lion kt66 6l6 - lion,

Genalex gold lion kt66 6l6 - lion,

$55.00
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Vintagenos cv1947 stc - 1x,

Vintagenos cv1947 stc - 1x,

$1049.00
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Nos marconi osram mwt - osram,

Nos marconi osram mwt - osram,

$277.97
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Genalex gold lion kt66 new - genalex,

Genalex gold lion kt66 new - genalex,

$69.50
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Vintagenos sylvania 6l6g - sylvania,

Vintagenos sylvania 6l6g - sylvania,

$949.00
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Kt66 tube amp doctor premium - doctor,

Kt66 tube amp doctor premium - doctor,

$50.95
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Brand new tung sol - new, reissue

Brand new tung sol - new, reissue

$51.32
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New current matched - current, (4)

New current matched - current, (4)

$305.12
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Kt66 genalex gold lion matched - genalex,

Kt66 genalex gold lion matched - genalex,

$129.50
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Genalex gold lion kt66 - genalex,

Genalex gold lion kt66 - genalex,

$67.95
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Genalex gold lion - gold, kt66

Genalex gold lion - gold, kt66

$358.77
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Dualdiscgetter 6l6gc - 2,

Dualdiscgetter 6l6gc - 2,

$275.00
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Vacuum tube shuguang nos - tube,

Vacuum tube shuguang nos - tube,

$29.89
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Kt66 marconi pair used - used, issue

Kt66 marconi pair used - used, issue

$370.23
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Vintage genalex gec kt66 - -,

Vintage genalex gec kt66 - -,

$269.00
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Kt66 6l6 sovtek tube gray - sovtek,

Kt66 6l6 sovtek tube gray - sovtek,

$36.00
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Brand new tung sol - brand, reissue

Brand new tung sol - brand, reissue

$105.73
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1961 genalex kt66 amplifier - genalex,

1961 genalex kt66 amplifier - genalex,

$231.74
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Quad genalex gold - genalex,

Quad genalex gold - genalex,

$271.80
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New reissue genalex gold - genalex,

New reissue genalex gold - genalex,

$75.42
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Kt66 6l6 sovtek tube gray - gt,

Kt66 6l6 sovtek tube gray - gt,

$40.50
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Mullard kt88 power vacuum - mullard,

Mullard kt88 power vacuum - mullard,

$300.00
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Genalex gold lion custom - gold,

Genalex gold lion custom - gold,

$234.45
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📊96 listings · from $12.99 · avg $331.25

Browse 96 kt66 listings currently in our index. Prices range from $12.99 to $3750, with an average of $331.25. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about kt66 →

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Everything you need to know about kt66

Whether you are looking for a brand-new or second-hand kt66, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at $12.99, while premium listings can reach $3750 — giving you a wide budget spread to work with. The average price of $331.25 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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