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Kt66

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Kt66 for sale on largest auction and classifieds sites

Home / Specialized Computing / Kt66 refurbished & used for sale | For Sale UK
Kt66 vacuum tube - g.e.c.,

Kt66 vacuum tube - g.e.c.,

£260.70
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Matched pair psvane kt88 - matched,

Matched pair psvane kt88 - matched,

£120.00
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Osram kt66 beam - osram, tetrode

Osram kt66 beam - osram, tetrode

£140.00
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Cherished number kt66hum kt66 - kt66hum,

Cherished number kt66hum kt66 - kt66hum,

£567.70
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Vintage original osram - osram, kt66

Vintage original osram - osram, kt66

£29.99
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Kt66 original marshall spares - kt66,

Kt66 original marshall spares - kt66,

£60.00
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Kt66 lve vintage retro style - lve,

Kt66 lve vintage retro style - lve,

£75.00
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Kt66 lve vintage - lve,

Kt66 lve vintage - lve,

£150.00
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Very rare pair - marconi, vt75

Very rare pair - marconi, vt75

£1200.00
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Marconi kt66 pair tested - marconi,

Marconi kt66 pair tested - marconi,

£150.00
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Marconi kt66 pair - marconi,

Marconi kt66 pair - marconi,

£175.00
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Kt66 gec new and unused - unused, from

Kt66 gec new and unused - unused, from

£129.00
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Kt66 original marshall spares - original,

Kt66 original marshall spares - original,

£120.00
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Marconi kt66 grey glass black - marconi,

Marconi kt66 grey glass black - marconi,

£44.00
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Gec kt88 pentode valve tube - gec,

Gec kt88 pentode valve tube - gec,

£175.00
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Grampian 462 kt66 valve - grampian,

Grampian 462 kt66 valve - grampian,

£265.00
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Vintage kt66 bentley - r,

Vintage kt66 bentley - r,

£22.22
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Matched pair kt66 new valve - kt66,

Matched pair kt66 new valve - kt66,

£80.00
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Kt66 genalex factory matched - kt66,

Kt66 genalex factory matched - kt66,

£127.95
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Marconic kt66 valves tubes - marconic,

Marconic kt66 valves tubes - marconic,

£588.10
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Mwt gec osram - kt66, base

Mwt gec osram - kt66, base

£104.70
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Kt66 gold tad original - tad,

Kt66 gold tad original - tad,

£75.00
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Shuguang black treasure - shuguang,

Shuguang black treasure - shuguang,

£219.10
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Shuguang china kt66 cv1075 - china,

Shuguang china kt66 cv1075 - china,

£15.00
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Pcs gec valve tube boxes - pcs,

Pcs gec valve tube boxes - pcs,

£25.00
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Osram kt66 valve - osram, tube.

Osram kt66 valve - osram, tube.

£169.50
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Leak tl12 point one - leak,

Leak tl12 point one - leak,

£1999.99
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Marconi osram gec kt66 fat - ,

Marconi osram gec kt66 fat - ,

£30.00
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Gec kt88 pentode valve - pentode, tube

Gec kt88 pentode valve - pentode, tube

£175.00
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Pin dual bias current - dual,

Pin dual bias current - dual,

£49.99
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Tested osram kt66 england - ~,

Tested osram kt66 england - ~,

£105.60
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Vintage usa valve - tube, 8

Vintage usa valve - tube, 8

£3.80
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Matched pair gec kt66 - gec, with

Matched pair gec kt66 - gec, with

£260.70
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Kt66 gec valve tube - valve,

Kt66 gec valve tube - valve,

£160.00
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Colomor kt66 nos valve - colomor,

Colomor kt66 nos valve - colomor,

£30.00
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Matched pair kt66 clear - ,

Matched pair kt66 clear - ,

£450.00
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Gec kt66 grey glass - grey, valve

Gec kt66 grey glass - grey, valve

£125.00
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Golden dragon kt66 super - dragon,

Golden dragon kt66 super - dragon,

£120.00
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Sovtek 1622 kt66 beam tetrode - kt66,

Sovtek 1622 kt66 beam tetrode - kt66,

£28.00
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Matched pair gec - matched,

Matched pair gec - matched,

£486.82
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Gec kt66 twin halo getters - gec,

Gec kt66 twin halo getters - gec,

£340.00
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Kt66 original marshall - original, spares

Kt66 original marshall - original, spares

£30.00
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Kt66 gold tad - kt66,

Kt66 gold tad - kt66,

£150.00
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Valve tube boxes size x10pcs - size, 4

Valve tube boxes size x10pcs - size, 4

£7.50
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Kt66 osram valve - osram,

Kt66 osram valve - osram,

£55.00
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Matched pair gec - matched, cv1075

Matched pair gec - matched, cv1075

£486.82
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Valve tube boxes - valve,

Valve tube boxes - valve,

£6.00
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Gec kt66 clear - glass, valve

Gec kt66 clear - glass, valve

£125.00
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Matched pair marconi - marconi, gec

Matched pair marconi - marconi, gec

£299.95
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Kt66 vt75 gec vintage coke - vt75,

Kt66 vt75 gec vintage coke - vt75,

£1000.00
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Mullard 6l6g el35 kt66 - mullard, cv1286

Mullard 6l6g el35 kt66 - mullard, cv1286

£39.99
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Matched pair gec - (2pcs),

Matched pair gec - (2pcs),

£505.54
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6l6gt kt66 7581 brimar valves - 7581,

6l6gt kt66 7581 brimar valves - 7581,

£38.00
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Kt66 gec cv1075 nos - cv1075,

Kt66 gec cv1075 nos - cv1075,

£450.00
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Matched pair gec - pair,

Matched pair gec - pair,

£486.82
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Valve tube pin - tube, octal

Valve tube pin - tube, octal

£4.20
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807 fu7 5933 - 807, 6l6

807 fu7 5933 - 807, 6l6

£16.03
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Gec kt66 grey glass - kt66, tube

Gec kt66 grey glass - kt66, tube

£150.00
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Kt66 quad vintage top - vintage,

Kt66 quad vintage top - vintage,

£549.00
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Kt66 marconi 1969 nos boxed - kt66,

Kt66 marconi 1969 nos boxed - kt66,

£225.00
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Rare vintage osram gec kt - *rare*,

Rare vintage osram gec kt - *rare*,

£199.95
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Gec kt66 grey glass valve - gec,

Gec kt66 grey glass valve - gec,

£125.00
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Marconi kt66 cv1075 clear - marconi,

Marconi kt66 cv1075 clear - marconi,

£49.99
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Matched pair brimar foreign - matched,

Matched pair brimar foreign - matched,

£40.00
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Rare gec osram kt66 vt75 - rare,

Rare gec osram kt66 vt75 - rare,

£400.00
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Kt66 clear glass - glass, base

Kt66 clear glass - glass, base

£400.00
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Rare gec osram kt66 - vt75, fat

Rare gec osram kt66 - vt75, fat

£300.00
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Kt66 marconi mov - kt66,

Kt66 marconi mov - kt66,

£180.00
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6l6gt kt66 7581 brimar - 7581, valve

6l6gt kt66 7581 brimar - 7581, valve

£20.00
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5881 6l6 kt66 pair tested - 5881,

5881 6l6 kt66 pair tested - 5881,

£69.95
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Kt66 valves matched - valves,

Kt66 valves matched - valves,

£139.32
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Vintage gec kt66 cv1075 grey - kt66,

Vintage gec kt66 cv1075 grey - kt66,

£125.00
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Replacement valve kit for - kit,

Replacement valve kit for - kit,

£115.38
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Kt66 cv1075 gec nos boxed - kt66,

Kt66 cv1075 gec nos boxed - kt66,

£500.00
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Gec kt66 grey - valve, tube

Gec kt66 grey - valve, tube

£125.00
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Gec cv1075 kt66 twin halo - cv1075,

Gec cv1075 kt66 twin halo - cv1075,

£160.00
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Vintage nos osram brown - nos,

Vintage nos osram brown - nos,

£179.95
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Matched pair gec brown - kt-66,

Matched pair gec brown - kt-66,

£299.95
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Matched quad brimar foreign - matched,

Matched quad brimar foreign - matched,

£100.00
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Kt66 valves matched - -,

Kt66 valves matched - -,

£267.00
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Gec cv1075 kt66 - gec, glass

Gec cv1075 kt66 - gec, glass

£200.00
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Vintage nos marconi - vintage, /gec

Vintage nos marconi - vintage, /gec

£174.95
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Vintage nos osram brown - nos,

Vintage nos osram brown - nos,

£199.95
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Gec kt66 2xo getters - gec, at

Gec kt66 2xo getters - gec, at

£160.00
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Gec kt66 grey glass black - gec,

Gec kt66 grey glass black - gec,

£100.00
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Kt66 gec twin - kt66,

Kt66 gec twin - kt66,

£225.00
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Kt66 guitar tubes matched - guitar,

Kt66 guitar tubes matched - guitar,

£60.00
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Gec kt66 twin halo - halo, getters

Gec kt66 twin halo - halo, getters

£160.00
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Brimar foreign 6l6gt - foreign, kt66

Brimar foreign 6l6gt - foreign, kt66

£18.00
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Vintage nos gec - nos, kt-66

Vintage nos gec - nos, kt-66

£149.95
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Mwt marconi kt66 grey - kt66, glass

Mwt marconi kt66 grey - kt66, glass

£125.00
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Colomor kt66 nos - kt66, valve

Colomor kt66 nos - kt66, valve

£30.00
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Rare trix t621 - trix, valve

Rare trix t621 - trix, valve

£850.00
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Mullard original tube - mullard,

Mullard original tube - mullard,

£15.00
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Matched pair shuguang - shuguang, /

Matched pair shuguang - shuguang, /

£156.69
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Marconi kt33c valve - marconi,

Marconi kt33c valve - marconi,

£10.79
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📊96 listings · from £3.8 · avg £213.64

Browse 96 kt66 listings currently in our index. Prices range from £3.8 to £1999.99, with an average of £213.64. 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 →

Try this: 6j1p | valve preamp | cv717 | 300b tube | 6550 tube | 6l6 tube | 807 valve | alinco transceiver | broadcast transmitter | dell poweredge 1600sc

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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 £3.8, while premium listings can reach £1999.99 — giving you a wide budget spread to work with. The average price of £213.64 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.

🔍 kt66 Search live on eBay