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 kt66 power - gold,

Genalex gold lion kt66 power - gold,

$99.99
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Pair mullard kt66 vacuum tubes - kt66,

Pair mullard kt66 vacuum tubes - kt66,

$399.00
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Tad kt66 premium matched - tad,

Tad kt66 premium matched - tad,

$93.95
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Matched pair gec cv1075 - matched, (2pcs)

Matched pair gec cv1075 - matched, (2pcs)

$650.00
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Sovtek tubes 4 - kt-66, gt

Sovtek tubes 4 - kt-66, gt

$144.00
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Rare mullard el37 - tube, nib

Rare mullard el37 - tube, nib

$225.00
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Electronic kt66 beam - electronic, power

Electronic kt66 beam - electronic, power

$99.99
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Matched pair tube - tube, amp

Matched pair tube - tube, amp

$128.00
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Brand new tung - brand,

Brand new tung - brand,

$160.00
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Nos platinum match pair kt66 - platinum,

Nos platinum match pair kt66 - platinum,

$400.00
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Genalex gold lion kt66 power - lion,

Genalex gold lion kt66 power - lion,

$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 stock - gec,

Gec kt66 british old stock - gec,

$250.75
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Kt66 cv1075 gec - cv1075, boxed

Kt66 cv1075 gec - cv1075, boxed

$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 - factory,

Platinum factory match - factory,

$258.00
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Kt66 lve vintage - retro, style

Kt66 lve vintage - retro, style

$201.23
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Kt66 cv1075 gec - kt66,

Kt66 cv1075 gec - kt66,

$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 kt66 - gold,

Genalex gold lion kt66 - gold,

$285.00
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Genalex gold lion kt66 power - lion,

Genalex gold lion kt66 power - lion,

$24.95
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Pair tad rt824 kt66 - pair,

Pair tad rt824 kt66 - pair,

$85.00
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Kt66 gold tad original - gold,

Kt66 gold tad original - gold,

$100.88
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Matched pair gec cv1075 - pair, (2pcs)

Matched pair gec cv1075 - pair, (2pcs)

$650.00
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New matched pair genalex kt77 - matched,

New matched pair genalex kt77 - matched,

$59.99
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Kt88c vacuum tube - kt88c,

Kt88c vacuum tube - kt88c,

$335.00
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Tad premium selected - selected, factory

Tad premium selected - selected, factory

$299.00
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Relco mullard genalex kt66 nib - mullard,

Relco mullard genalex kt66 nib - mullard,

$1495.00
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Kewtech kt66dl 1 - kt66dl, 12-in-1

Kewtech kt66dl 1 - kt66dl, 12-in-1

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

Rca 6l6gc 7581a - /kt66, beam

$45.00
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7581a kt66 6l6gc - 7581a, power

7581a kt66 6l6gc - 7581a, power

$75.00
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Pair kt66 power vacuum - pair,

Pair kt66 power vacuum - pair,

$111.90
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Kt66 grey glass - glass, matched

Kt66 grey glass - glass, matched

$935.00
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Gec kt66 pair - kt66, tubes

Gec kt66 pair - kt66, tubes

$398.00
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Rare nos 6l6 - rare,

Rare nos 6l6 - rare,

$249.64
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Sovtek tube tv7 test - tube,

Sovtek tube tv7 test - tube,

$40.00
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Marconi kt66 tubes - marconi,

Marconi kt66 tubes - marconi,

$2799.00
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Genalex gold lion kt66 power - genalex,

Genalex gold lion kt66 power - genalex,

$120.00
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Relco genalex tube gray - kt-66,

Relco genalex tube gray - kt-66,

$600.00
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Kt66 genalex gold - kt66,

Kt66 genalex gold - kt66,

$259.00
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6p3s tubes matched quad nos - tubes,

6p3s tubes matched quad nos - tubes,

$69.00
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Kt66 ars replaces - ars,

Kt66 ars replaces - ars,

$40.95
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Kt66 electronic matched - kt66,

Kt66 electronic matched - kt66,

$114.58
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Rare italian vintage mullard - italian,

Rare italian vintage mullard - italian,

$212.54
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Kt66 power vacuum tube - vacuum,

Kt66 power vacuum tube - vacuum,

$55.95
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Strong genelex gold lion - genelex,

Strong genelex gold lion - genelex,

$149.99
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Kt66 electronic matched - electronic,

Kt66 electronic matched - electronic,

$57.79
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Quad kt66 power - power, vacuum

Quad kt66 power - power, vacuum

$223.80
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Tube amp higher temp - 4,

Tube amp higher temp - 4,

$22.99
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Rft 6l6 6l6gc 6l6g kt66 - 6l6g,

Rft 6l6 6l6gc 6l6g kt66 - 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 - 1,

Vintage genalex gec - 1,

$249.00
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Clean super matched pair - 2, &

Clean super matched pair - 2, &

$179.00
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Genalex gold lion kt66 new - genalex,

Genalex gold lion kt66 new - genalex,

$132.50
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Ruby kt66c kt66 - kt66c,

Ruby kt66c kt66 - kt66c,

$250.00
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Kt66 marshall premium - ,

Kt66 marshall premium - ,

$211.32
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Kt66 lve vintage retro - kt66,

Kt66 lve vintage retro - kt66,

$100.07
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Lot kt66 tubes - lot, of

Lot kt66 tubes - lot, of

$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 - lion, kt66

Genalex gold lion - lion, kt66

$246.98
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Vintagenos usa 7027a - 1x, ge

Vintagenos usa 7027a - 1x, ge

$349.00
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New reissue genalex gold - new,

New reissue genalex gold - new,

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

10pc 8pin octal tube socket - 10pc,

$31.85
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Tube amp dampers - 4, for

Tube amp dampers - 4, for

$12.99
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Kt66 guitar tubes matched - kt66,

Kt66 guitar tubes matched - kt66,

$79.25
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2pcs matched audio tube - tube, vacuum

2pcs matched audio tube - tube, vacuum

$248.99
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Electron tube tubes new - electron, tubes,

Electron tube tubes new - electron, tubes,

$400.00
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Shuguang kt66 z treasure - x,

Shuguang kt66 z treasure - x,

$107.80
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New current matched pair - new,

New current matched pair - new,

$150.77
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Genalex gold lion - genalex,

Genalex gold lion - genalex,

$55.00
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Vintagenos cv1947 stc - vintagenos,

Vintagenos cv1947 stc - vintagenos,

$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 - gold,

Genalex gold lion kt66 new - gold,

$69.50
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Vintagenos sylvania 6l6g - 1x,

Vintagenos sylvania 6l6g - 1x,

$949.00
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Kt66 tube amp doctor - amp,

Kt66 tube amp doctor - amp,

$50.95
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Brand new tung sol - new, tung-sol

Brand new tung sol - new, tung-sol

$51.32
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New current matched - current,

New current matched - current,

$305.12
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Kt66 genalex gold lion matched - kt66,

Kt66 genalex gold lion matched - kt66,

$129.50
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Genalex gold lion kt66 power - -,

Genalex gold lion kt66 power - -,

$67.95
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Genalex gold lion kt66 - genalex,

Genalex gold lion kt66 - genalex,

$358.77
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Dualdiscgetter 6l6gc - dualdiscgetter,

Dualdiscgetter 6l6gc - dualdiscgetter,

$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 - kt66, issue

Kt66 marconi pair used - kt66, issue

$370.23
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Vintage genalex gec kt66 - vintage,

Vintage genalex gec kt66 - vintage,

$269.00
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Kt66 6l6 sovtek tube - 6l6,

Kt66 6l6 sovtek tube - 6l6,

$36.00
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Brand new tung sol - brand, tung-sol

Brand new tung sol - brand, tung-sol

$105.73
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1961 genalex kt66 amplifier - kt66,

1961 genalex kt66 amplifier - kt66,

$231.74
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Quad genalex gold lion - quad, of

Quad genalex gold lion - quad, of

$271.80
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New reissue genalex gold lion - new,

New reissue genalex gold lion - new,

$75.42
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Kt66 6l6 sovtek tube - kt66,

Kt66 6l6 sovtek tube - kt66,

$40.50
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Mullard kt88 power - mullard,

Mullard kt88 power - mullard,

$300.00
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Genalex gold lion custom tube - lion,

Genalex gold lion custom tube - lion,

$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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