Kt66

4

Kt66 for sale on largest auction and classifieds sites

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

Pair genalex england - england, gray

$495.00
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Genalex gold lion kt66 power - lion,

Genalex gold lion kt66 power - lion,

$99.99
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Pair mullard kt66 - mullard, tubes

Pair mullard kt66 - mullard, tubes

$399.00
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Tad kt66 premium - kt66, matched

Tad kt66 premium - kt66, matched

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

Matched pair gec cv1075 - pair, (2pcs)

$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 mullard el37 - tube, nib

$225.00
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Electronic kt66 beam - electronic,

Electronic kt66 beam - electronic,

$99.99
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Matched pair tube amp doctor - matched,

Matched pair tube amp doctor - matched,

$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 kt66 - nos,

Nos platinum match pair kt66 - nos,

$400.00
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Genalex gold lion kt66 - kt66, power

Genalex gold lion kt66 - kt66, power

$129.99
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Brimar 6l6g cv1947 - brimar,

Brimar 6l6g cv1947 - brimar,

$390.00
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Matched quad tube amp doctor - tube,

Matched quad tube amp doctor - tube,

$256.00
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Gec kt66 british - gec,

Gec kt66 british - gec,

$250.75
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Kt66 cv1075 gec nos boxed - kt66, kb/z

Kt66 cv1075 gec nos boxed - kt66, kb/z

$665.25
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Gec kt66 nos vintage - kt66, pair

Gec kt66 nos vintage - kt66, pair

$475.00
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Sunvalley mono blocks - sunvalley,

Sunvalley mono blocks - 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 - match,

Platinum factory match quad - match,

$258.00
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Kt66 lve vintage - vintage, retro

Kt66 lve vintage - vintage, retro

$201.23
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Kt66 cv1075 gec - gec, matched

Kt66 cv1075 gec - gec, matched

$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 new - gold,

Genalex gold lion kt66 new - gold,

$285.00
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Genalex gold lion - gold, power

Genalex gold lion - 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 original - kt66,

Kt66 gold tad original - kt66,

$100.88
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Matched pair gec - pair, cv1075

Matched pair gec - pair, cv1075

$650.00
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New matched pair genalex - new,

New matched pair genalex - new,

$59.99
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Kt88c vacuum tube - kt88c, 4pcs

Kt88c vacuum tube - kt88c, 4pcs

$335.00
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Tad premium selected factory - tad,

Tad premium selected factory - tad,

$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 - kt66dl, 12-in-1

Kewtech kt66dl 1 - kt66dl, 12-in-1

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

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

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

7581a kt66 6l6gc power tube - 7581a,

$75.00
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Pair kt66 power - kt66, vacuum

Pair kt66 power - kt66, vacuum

$111.90
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Kt66 grey glass matched - grey,

Kt66 grey glass matched - grey,

$935.00
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Gec kt66 pair vacuum - gec,

Gec kt66 pair vacuum - gec,

$398.00
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Rare nos 6l6 - 6l6g, kt66

Rare nos 6l6 - 6l6g, kt66

$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 quad - tubes, nos

Marconi kt66 tubes quad - tubes, nos

$2799.00
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Genalex gold lion kt66 power - gold,

Genalex gold lion kt66 power - gold,

$120.00
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Relco genalex tube gray - genalex,

Relco genalex tube gray - genalex,

$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 nos - 6p3s-e,

6p3s tubes matched quad nos - 6p3s-e,

$69.00
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Kt66 ars replaces - kt66,

Kt66 ars replaces - kt66,

$40.95
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Kt66 electronic matched - jj,

Kt66 electronic matched - jj,

$114.58
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Rare italian vintage mullard - rare,

Rare italian vintage mullard - rare,

$212.54
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Kt66 power vacuum - jj,

Kt66 power vacuum - jj,

$55.95
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Strong genelex gold lion kt66 - lion,

Strong genelex gold lion kt66 - lion,

$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 - power,

Quad kt66 power vacuum - power,

$223.80
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Tube amp higher - amp, temp

Tube amp higher - amp, temp

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

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

$279.00
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Matched pair vacuum tube - pair,

Matched pair vacuum tube - pair,

$119.61
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Vintage genalex gec - , /

Vintage genalex gec - , /

$249.00
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Clean super matched pair - clean,

Clean super matched pair - clean,

$179.00
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Genalex gold lion kt66 new - gold,

Genalex gold lion kt66 new - gold,

$132.50
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Ruby kt66c kt66 audio - ruby,

Ruby kt66c kt66 audio - ruby,

$250.00
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Kt66 marshall premium matched - kt66,

Kt66 marshall premium matched - kt66,

$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 - new, tung-sol

Brand new tung sol - new, tung-sol

$107.54
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Genalex gold lion - genalex, power

Genalex gold lion - genalex, power

$246.98
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Vintagenos usa 7027a - ge,

Vintagenos usa 7027a - ge,

$349.00
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New reissue genalex gold lion - genalex,

New reissue genalex gold lion - genalex,

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

10pc 8pin octal tube socket - octal,

$31.85
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Tube amp dampers - amp, for

Tube amp dampers - amp, for

$12.99
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Kt66 guitar tubes matched - pm,

Kt66 guitar tubes matched - pm,

$79.25
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2pcs matched audio tube vacuum - audio,

2pcs matched audio tube vacuum - audio,

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

Electron tube tubes - kt-66, tubes,

$400.00
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Shuguang kt66 z treasure - kt66-z,

Shuguang kt66 z treasure - kt66-z,

$107.80
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New current matched pair - matched,

New current matched pair - matched,

$150.77
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Genalex gold lion kt66 6l6 - genalex,

Genalex gold lion kt66 6l6 - genalex,

$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 - gold, new

Genalex gold lion kt66 - gold, new

$69.50
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Vintagenos sylvania 6l6g - sylvania,

Vintagenos sylvania 6l6g - sylvania,

$949.00
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Kt66 tube amp - amp, doctor

Kt66 tube amp - amp, doctor

$50.95
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Brand new tung - new, tung-sol

Brand new tung - new, 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 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 - genalex, power

Genalex gold lion - genalex, power

$358.77
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Dualdiscgetter 6l6gc - dualdiscgetter,

Dualdiscgetter 6l6gc - dualdiscgetter,

$275.00
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Vacuum tube shuguang nos - 1,

Vacuum tube shuguang nos - 1,

$29.89
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Kt66 marconi pair - marconi, issue

Kt66 marconi pair - marconi, issue

$370.23
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Vintage genalex gec kt66 - -,

Vintage genalex gec kt66 - -,

$269.00
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Kt66 6l6 sovtek - 6l6, gray

Kt66 6l6 sovtek - 6l6, gray

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

Brand new tung sol reissue - tung-sol,

$105.73
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1961 genalex kt66 amplifier - 1961,

1961 genalex kt66 amplifier - 1961,

$231.74
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Quad genalex gold - genalex, lion

Quad genalex gold - genalex, lion

$271.80
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New reissue genalex - new,

New reissue genalex - new,

$75.42
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Kt66 6l6 sovtek - gt, gray

Kt66 6l6 sovtek - gt, gray

$40.50
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Mullard kt88 power vacuum - power,

Mullard kt88 power vacuum - power,

$300.00
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Genalex gold lion custom tube - gold,

Genalex gold lion custom tube - 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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