Kt66

4

Kt66 for sale on largest auction and classifieds sites

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

Pair genalex england kt66 - genalex, gray

$495.00
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Genalex gold lion kt66 - gold, power

Genalex gold lion kt66 - gold, power

$99.99
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Pair mullard kt66 vacuum tubes - mullard,

Pair mullard kt66 vacuum tubes - mullard,

$399.00
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Tad kt66 premium - premium,

Tad kt66 premium - premium,

$93.95
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Matched pair gec - pair,

Matched pair gec - pair,

$650.00
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Sovtek tubes 4 pack - kt-66, 4-pack

Sovtek tubes 4 pack - kt-66, 4-pack

$144.00
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Rare mullard el37 tube nib - rare,

Rare mullard el37 tube nib - rare,

$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 amp - pair,

Matched pair tube amp - pair,

$128.00
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Brand new tung sol - brand,

Brand new tung sol - brand,

$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 - lion, kt66

Genalex gold lion - lion, kt66

$129.99
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Brimar 6l6g cv1947 - brimar, kt66

Brimar 6l6g cv1947 - brimar, kt66

$390.00
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Matched quad tube - amp, doctor

Matched quad tube - amp, doctor

$256.00
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Gec kt66 british - gec,

Gec kt66 british - gec,

$250.75
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Kt66 cv1075 gec - kt66, kb/z

Kt66 cv1075 gec - kt66, kb/z

$665.25
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Gec kt66 nos vintage - gec,

Gec kt66 nos vintage - gec,

$475.00
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Sunvalley mono blocks tubes - mono,

Sunvalley mono blocks tubes - mono,

$1795.00
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Matched quad kt77 - kt77, power

Matched quad kt77 - kt77, power

$90.00
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Platinum factory match - platinum, quad

Platinum factory match - platinum, quad

$258.00
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Kt66 lve vintage retro style - lve,

Kt66 lve vintage retro style - lve,

$201.23
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Kt66 cv1075 gec matched - gec,

Kt66 cv1075 gec matched - gec,

$672.50
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Genalex gold lion kt66 vacuum - gold,

Genalex gold lion kt66 vacuum - gold,

$325.00
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Genalex gold lion - gold, kt66

Genalex gold lion - gold, kt66

$285.00
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Genalex gold lion kt66 - genalex,

Genalex gold lion kt66 - genalex,

$24.95
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Pair tad rt824 kt66 vacuum - rt824,

Pair tad rt824 kt66 vacuum - rt824,

$85.00
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Kt66 gold tad - kt66,

Kt66 gold tad - kt66,

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

Matched pair gec cv1075 - (2pcs),

$650.00
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New matched pair genalex kt77 - pair,

New matched pair genalex kt77 - pair,

$59.99
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Kt88c vacuum tube valve 4pcs - vacuum,

Kt88c vacuum tube valve 4pcs - vacuum,

$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 kt66 nib - genalex,

Relco mullard genalex kt66 nib - genalex,

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

Kewtech kt66dl 1 - kewtech, 12-in-1

$799.99
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Rca 6l6gc 7581a - rca, 6l6gc/7581a

Rca 6l6gc 7581a - rca, 6l6gc/7581a

$45.00
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7581a kt66 6l6gc power - ge,

7581a kt66 6l6gc power - ge,

$75.00
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Pair kt66 power vacuum - pair, jj

Pair kt66 power vacuum - pair, jj

$111.90
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Kt66 grey glass - kt66, matched

Kt66 grey glass - kt66, matched

$935.00
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Gec kt66 pair vacuum tubes - vacuum,

Gec kt66 pair vacuum tubes - vacuum,

$398.00
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Rare nos 6l6 6l6g - rare, german

Rare nos 6l6 6l6g - rare, german

$249.64
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Sovtek tube tv7 test - kt-66,

Sovtek tube tv7 test - kt-66,

$40.00
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Marconi kt66 tubes quad - tubes,

Marconi kt66 tubes quad - tubes,

$2799.00
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Genalex gold lion - lion, power

Genalex gold lion - lion, power

$120.00
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Relco genalex tube gray - relco,

Relco genalex tube gray - relco,

$600.00
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Kt66 genalex gold - lion, matched

Kt66 genalex gold - lion, matched

$259.00
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6p3s tubes matched - 6p3s-e, nos

6p3s tubes matched - 6p3s-e, nos

$69.00
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Kt66 ars replaces - 1,

Kt66 ars replaces - 1,

$40.95
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Kt66 electronic matched - jj,

Kt66 electronic matched - jj,

$114.58
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Rare italian vintage - italian,

Rare italian vintage - 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 - gold,

Strong genelex gold lion - gold,

$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 - power, vacuum

Quad kt66 power - power, vacuum

$223.80
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Tube amp higher temp dampers - tube,

Tube amp higher temp dampers - tube,

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

Rft 6l6 6l6gc - 6l6, kt66

$279.00
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Matched pair vacuum tube - 1,

Matched pair vacuum tube - 1,

$119.61
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Vintage genalex gec - -,

Vintage genalex gec - -,

$249.00
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Clean super matched - &, pair

Clean super matched - &, pair

$179.00
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Genalex gold lion kt66 new - lion,

Genalex gold lion kt66 new - lion,

$132.50
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Ruby kt66c kt66 - ruby, power

Ruby kt66c kt66 - 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 - of,

Lot kt66 tubes - of,

$3750.00
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Brand new tung sol - brand, reissue

Brand new tung sol - brand, reissue

$107.54
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Genalex gold lion kt66 - lion,

Genalex gold lion kt66 - lion,

$246.98
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Vintagenos usa 7027a - vintagenos,

Vintagenos usa 7027a - vintagenos,

$349.00
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New reissue genalex gold lion - reissue,

New reissue genalex gold lion - reissue,

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

10pc 8pin octal tube socket - tube,

$31.85
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Tube amp dampers - tube, for

Tube amp dampers - tube, 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 vacuum - matched,

2pcs matched audio tube vacuum - matched,

$248.99
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Electron tube tubes new - electron,

Electron tube tubes new - electron,

$400.00
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Shuguang kt66 z treasure - 2,

Shuguang kt66 z treasure - 2,

$107.80
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New current matched - pair, (2)

New current matched - pair, (2)

$150.77
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Genalex gold lion - kt66, 6l6

Genalex gold lion - kt66, 6l6

$55.00
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Vintagenos cv1947 stc - vintagenos,

Vintagenos cv1947 stc - vintagenos,

$1049.00
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Nos marconi osram mwt kt66 - nos,

Nos marconi osram mwt kt66 - nos,

$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 - sylvania,

Vintagenos sylvania 6l6g - sylvania,

$949.00
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Kt66 tube amp - tube,

Kt66 tube amp - tube,

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

Brand new tung sol reissue - brand, tung-sol

$51.32
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New current matched quad - new,

New current matched quad - new,

$305.12
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Kt66 genalex gold - genalex, lion

Kt66 genalex gold - genalex, lion

$129.50
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Genalex gold lion kt66 - lion,

Genalex gold lion kt66 - lion,

$67.95
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Genalex gold lion - genalex, kt66

Genalex gold lion - genalex, kt66

$358.77
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Dualdiscgetter 6l6gc - dualdiscgetter,

Dualdiscgetter 6l6gc - dualdiscgetter,

$275.00
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Vacuum tube shuguang - pc,

Vacuum tube shuguang - pc,

$29.89
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Kt66 marconi pair used - marconi,

Kt66 marconi pair used - marconi,

$370.23
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Vintage genalex gec - 1,

Vintage genalex gec - 1,

$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 - new, tung-sol

Brand new tung - new, tung-sol

$105.73
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1961 genalex kt66 - 1961,

1961 genalex kt66 - 1961,

$231.74
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Quad genalex gold - quad, lion

Quad genalex gold - quad, lion

$271.80
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New reissue genalex gold lion - reissue,

New reissue genalex gold lion - reissue,

$75.42
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Kt66 6l6 sovtek - sovtek, tube

Kt66 6l6 sovtek - sovtek, tube

$40.50
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Mullard kt88 power - mullard, vacuum

Mullard kt88 power - mullard, vacuum

$300.00
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Genalex gold lion - genalex,

Genalex gold lion - genalex,

$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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