Kt66

4

Kt66 for sale on largest auction and classifieds sites

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

Pair genalex england kt66 - england, gray

$495.00
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Genalex gold lion kt66 power - genalex,

Genalex gold lion kt66 power - genalex,

$99.99
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Pair mullard kt66 vacuum tubes - vacuum,

Pair mullard kt66 vacuum tubes - vacuum,

$399.00
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Tad kt66 premium matched - kt66,

Tad kt66 premium matched - kt66,

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

Matched pair gec - 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 - el37,

Rare mullard el37 tube nib - el37,

$225.00
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Electronic kt66 beam - jj,

Electronic kt66 beam - jj,

$99.99
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Matched pair tube - pair,

Matched pair tube - pair,

$128.00
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Brand new tung - brand, tung-sol

Brand new tung - brand, tung-sol

$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 - gold,

Genalex gold lion kt66 power - gold,

$129.99
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Brimar 6l6g cv1947 kt66 - brimar, nos

Brimar 6l6g cv1947 kt66 - brimar, nos

$390.00
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Matched quad tube amp - amp, doctor

Matched quad tube amp - amp, doctor

$256.00
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Gec kt66 british old stock - stock, in

Gec kt66 british old stock - stock, in

$250.75
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Kt66 cv1075 gec nos boxed - cv1075,

Kt66 cv1075 gec nos boxed - cv1075,

$665.25
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Gec kt66 nos vintage pair - kt66,

Gec kt66 nos vintage pair - kt66,

$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 power - jj,

Matched quad kt77 power - jj,

$90.00
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Platinum factory match - match, quad

Platinum factory match - match, quad

$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 matched - kb/z,

Kt66 cv1075 gec matched - kb/z,

$672.50
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Genalex gold lion kt66 - genalex,

Genalex gold lion kt66 - genalex,

$325.00
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Genalex gold lion - genalex, new

Genalex gold lion - genalex, new

$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 vacuum - tad,

Pair tad rt824 kt66 vacuum - tad,

$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 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 - kt88c,

Kt88c vacuum tube valve - kt88c,

$335.00
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Tad premium selected factory - selected,

Tad premium selected factory - selected,

$299.00
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Relco mullard genalex - kt66, nib

Relco mullard genalex - kt66, nib

$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 - /kt66, beam

Rca 6l6gc 7581a - /kt66, beam

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

7581a kt66 6l6gc power tube - kt66,

$75.00
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Pair kt66 power - jj,

Pair kt66 power - jj,

$111.90
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Kt66 grey glass matched - grey, quad

Kt66 grey glass matched - grey, quad

$935.00
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Gec kt66 pair vacuum tubes - kt66,

Gec kt66 pair vacuum tubes - kt66,

$398.00
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Rare nos 6l6 6l6g kt66 - rare,

Rare nos 6l6 6l6g kt66 - rare,

$249.64
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Sovtek tube tv7 - kt-66,

Sovtek tube tv7 - kt-66,

$40.00
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Marconi kt66 tubes quad - marconi,

Marconi kt66 tubes quad - 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 - tube,

Relco genalex tube gray - tube,

$600.00
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Kt66 genalex gold lion - genalex, matched

Kt66 genalex gold lion - genalex, matched

$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 ars replaces - ,

$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 - kt66,

Kt66 power vacuum tube - kt66,

$55.95
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Strong genelex gold - strong, kt66

Strong genelex gold - strong, kt66

$149.99
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Kt66 electronic matched - jj,

Kt66 electronic matched - jj,

$57.79
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Quad kt66 power - quad, of

Quad kt66 power - quad, of

$223.80
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Tube amp higher temp - 4, dampers

Tube amp higher temp - 4, dampers

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

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

$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 - 2,

Clean super matched pair - 2,

$179.00
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Genalex gold lion kt66 - lion,

Genalex gold lion kt66 - lion,

$132.50
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Ruby kt66c kt66 audio power - ruby,

Ruby kt66c kt66 audio power - ruby,

$250.00
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Kt66 marshall premium - kt66,

Kt66 marshall premium - kt66,

$211.32
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Kt66 lve vintage retro style - vintage,

Kt66 lve vintage retro style - vintage,

$100.07
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Lot kt66 tubes - of,

Lot kt66 tubes - of,

$3750.00
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Brand new tung sol reissue - brand, tung-sol

Brand new tung sol reissue - brand, tung-sol

$107.54
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Genalex gold lion kt66 power - genalex,

Genalex gold lion kt66 power - genalex,

$246.98
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Vintagenos usa 7027a - usa,

Vintagenos usa 7027a - usa,

$349.00
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New reissue genalex - new, gold

New reissue genalex - new, gold

$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 - amp,

Tube amp dampers for - amp,

$12.99
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Kt66 guitar tubes matched - kt66, pm

Kt66 guitar tubes matched - kt66, pm

$79.25
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2pcs matched audio - audio, vacuum

2pcs matched audio - audio, vacuum

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

Electron tube tubes new - electron, kt-66

$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 - matched, (2)

New current matched - matched, (2)

$150.77
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Genalex gold lion kt66 - genalex,

Genalex gold lion kt66 - genalex,

$55.00
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Vintagenos cv1947 stc - vintagenos,

Vintagenos cv1947 stc - vintagenos,

$1049.00
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Nos marconi osram - nos, kt66

Nos marconi osram - nos, kt66

$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 - vintagenos,

Vintagenos sylvania 6l6g - vintagenos,

$949.00
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Kt66 tube amp doctor - kt66,

Kt66 tube amp doctor - kt66,

$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 - matched, quad

New current matched - matched, quad

$305.12
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Kt66 genalex gold - genalex, matched

Kt66 genalex gold - genalex, matched

$129.50
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Genalex gold lion kt66 power - genalex,

Genalex gold lion kt66 power - genalex,

$67.95
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Genalex gold lion - lion, kt66

Genalex gold lion - lion, kt66

$358.77
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Dualdiscgetter 6l6gc - 2,

Dualdiscgetter 6l6gc - 2,

$275.00
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Vacuum tube shuguang nos - pc,

Vacuum tube shuguang nos - pc,

$29.89
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Kt66 marconi pair - kt66, used

Kt66 marconi pair - kt66, used

$370.23
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Vintage genalex gec kt66 - genalex, /

Vintage genalex gec kt66 - genalex, /

$269.00
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Kt66 6l6 sovtek tube gray - kt66,

Kt66 6l6 sovtek tube gray - kt66,

$36.00
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Brand new tung - brand,

Brand new tung - brand,

$105.73
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1961 genalex kt66 - kt66, amplifier

1961 genalex kt66 - kt66, amplifier

$231.74
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Quad genalex gold lion - quad,

Quad genalex gold lion - quad,

$271.80
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New reissue genalex - reissue,

New reissue genalex - reissue,

$75.42
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Kt66 6l6 sovtek tube - tube, gray

Kt66 6l6 sovtek tube - tube, gray

$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 - gold, custom

Genalex gold lion - gold, custom

$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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