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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
Gec kt66 valve - valve, double

Gec kt66 valve - valve, double

€120.00
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Pin dual bias - 8-pin, probes

Pin dual bias - 8-pin, probes

€45.49
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Amptata tube tester bias - tester,

Amptata tube tester bias - tester,

€65.99
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Genalex kt66 vacuum - genalex, tube

Genalex kt66 vacuum - genalex, tube

€142.27
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Gec kt66 electronic tube - gec,

Gec kt66 electronic tube - gec,

€75.00
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Marconic kt66 valves tubes - valves,

Marconic kt66 valves tubes - valves,

€618.70
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Marconi kt66 vintage - kt66, audio

Marconi kt66 vintage - kt66, audio

€85.00
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Matched pair gec - pair, (2pcs)

Matched pair gec - pair, (2pcs)

€407.56
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Kt66 valve - (electronic, tube)

Kt66 valve - (electronic, tube)

€37.10
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Kt66 original marshall - marshall, spares

Kt66 original marshall - marshall, spares

€120.00
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Matched pair marconi - pair,

Matched pair marconi - pair,

€299.95
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Kt66 original marshall - kt66,

Kt66 original marshall - kt66,

€60.00
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Kt66 gec new and unused - kt66,

Kt66 gec new and unused - kt66,

€129.00
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Amptata tube tester - t6, bias

Amptata tube tester - t6, bias

€27.59
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2pcs el34 kt88 6l6 - 6l6, 6v6

2pcs el34 kt88 6l6 - 6l6, 6v6

€17.99
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Pcs gec valve - pcs, boxes

Pcs gec valve - pcs, boxes

€25.00
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Kt66 lve vintage retro - kt66, style

Kt66 lve vintage retro - kt66, style

€150.00
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Kt66 genalex factory matched - ,

Kt66 genalex factory matched - ,

€127.95
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Kt66 lve vintage - lve, style

Kt66 lve vintage - lve, style

€75.00
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Gec kt66 vacuum tube valve - tube,

Gec kt66 vacuum tube valve - tube,

€75.00
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Vintage nos marconi - nos, /gec

Vintage nos marconi - nos, /gec

€174.95
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Golden dragon kt66 super - dragon,

Golden dragon kt66 super - dragon,

€120.00
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Kt66 guitar tubes matched - pm,

Kt66 guitar tubes matched - pm,

€60.00
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Vintage gec kt66 cv1075 - vintage,

Vintage gec kt66 cv1075 - vintage,

€125.00
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Kt66 gold tad - kt66,

Kt66 gold tad - kt66,

€75.00
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Matched pair gec brown - pair, kt-66

Matched pair gec brown - pair, kt-66

€299.95
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Matched quad brimar foreign - matched,

Matched quad brimar foreign - matched,

€100.00
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Matched pair brimar - matched,

Matched pair brimar - matched,

€40.00
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4pcs el34 kt88 6l6 6v6 - kt88,

4pcs el34 kt88 6l6 6v6 - kt88,

€35.98
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Vintage 7581a kt66 usa power - /,

Vintage 7581a kt66 usa power - /,

€221.00
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Shuguang china kt66 - shuguang,

Shuguang china kt66 - shuguang,

€15.00
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Vintage gec kt66 closely - vintage, kt66's

Vintage gec kt66 closely - vintage, kt66's

€499.36
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Factory matched pair new kt66 - pair,

Factory matched pair new kt66 - pair,

€94.30
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Kt66 professional vacuum - professional,

Kt66 professional vacuum - professional,

€65.00
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Rare trix t621 - t621, valve

Rare trix t621 - t621, valve

€850.00
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Kt66 gold tad - gold,

Kt66 gold tad - gold,

€150.00
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Marconi kt66 grey glass black - marconi,

Marconi kt66 grey glass black - marconi,

€49.00
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Vintage nos osram brown - vintage,

Vintage nos osram brown - vintage,

€199.95
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Kt66 osram valve grey glass - valve,

Kt66 osram valve grey glass - valve,

€55.00
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Vintage nos osram brown - kt-66,

Vintage nos osram brown - kt-66,

€179.95
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Kt66 original marshall spares - kt66,

Kt66 original marshall spares - kt66,

€30.00
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Matched pair kt66 new valve - kt66,

Matched pair kt66 new valve - kt66,

€80.00
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Matched pair gec kt66 - matched,

Matched pair gec kt66 - matched,

€260.70
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New tubes gec - tubes, cv1075

New tubes gec - tubes, cv1075

€666.91
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6l6gt kt66 7581 brimar - kt66,

6l6gt kt66 7581 brimar - kt66,

€45.00
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Colomor kt66 nos valve tube - kt66,

Colomor kt66 nos valve tube - kt66,

€30.00
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Marconi kt66 cv1075 - marconi,

Marconi kt66 cv1075 - marconi,

€49.99
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Mullard 6l6g el35 kt66 - mullard,

Mullard 6l6g el35 kt66 - mullard,

€39.99
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Grampian 462 kt66 valve tube - grampian,

Grampian 462 kt66 valve tube - grampian,

€295.00
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Kt66 quad vintage top - kt66,

Kt66 quad vintage top - kt66,

€549.00
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Kt66 vintage valve - vintage,

Kt66 vintage valve - vintage,

€160.00
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Vintage gec brown - kt-66, base

Vintage gec brown - kt-66, base

€134.95
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Kt66 marconi mov - marconi,

Kt66 marconi mov - marconi,

€180.00
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Osram kt66 grey glass - kt66,

Osram kt66 grey glass - kt66,

€125.00
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Replacement valve kit for - kit,

Replacement valve kit for - kit,

€115.38
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Kt66 vt75 gec - kt66, coke

Kt66 vt75 gec - kt66, coke

€1000.00
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Kt66 valves matched pair - jj,

Kt66 valves matched pair - jj,

€139.32
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Vintage nos gec brown - nos, kt-66

Vintage nos gec brown - nos, kt-66

€149.95
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Gec kt66 grey smoke - glass, g

Gec kt66 grey smoke - glass, g

€120.00
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Sovtek 1622 kt66 beam tetrode - sovtek,

Sovtek 1622 kt66 beam tetrode - sovtek,

€40.00
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Kt66 matched pair - kt66, jj

Kt66 matched pair - kt66, jj

€120.00
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Valve tube pin octal base - pin,

Valve tube pin octal base - pin,

€4.20
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Osram gec kt66 grey - kt66,

Osram gec kt66 grey - kt66,

€120.00
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Mwt marconi kt66 grey glass - kt66,

Mwt marconi kt66 grey glass - kt66,

€125.00
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Osram kt66 grey - kt66, valve

Osram kt66 grey - kt66, valve

€125.00
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Vintage usa valve tube - valve, 8

Vintage usa valve tube - valve, 8

€3.80
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Kt66 valves matched quad - kt66,

Kt66 valves matched quad - kt66,

€267.00
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Marconi kt66 amplifier - kt66,

Marconi kt66 amplifier - kt66,

€82.86
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Gec kt66 grey smoke glass - , e

Gec kt66 grey smoke glass - , e

€130.00
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Gec osram kt66 grey smoke - ,

Gec osram kt66 grey smoke - ,

€130.00
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Near mint 7581a - mint,

Near mint 7581a - mint,

€133.38
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Valve tube boxes - valve, x10pcs

Valve tube boxes - valve, x10pcs

€6.00
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Osram kt66 cv1075 grey - osram,

Osram kt66 cv1075 grey - osram,

€125.00
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Reissue genalex gold lion - reissue,

Reissue genalex gold lion - reissue,

€100.47
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807 fu7 5933 6l6 - 5933, el34

807 fu7 5933 6l6 - 5933, el34

€16.03
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Gec kt66 grey - ,

Gec kt66 grey - ,

€100.00
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Gec kt66 cv1075 - gec,

Gec kt66 cv1075 - gec,

€160.00
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Kt66 gec twin - ,

Kt66 gec twin - ,

€180.00
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Colomor kt66 nos valve tube - , e

Colomor kt66 nos valve tube - , e

€30.00
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Gec kt66 grey glass valve - glass, tube

Gec kt66 grey glass valve - glass, tube

€125.00
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Gec kt66 grey - smoke, glass

Gec kt66 grey - smoke, glass

€100.00
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Vintage 6l6 tubes - vintage, valves

Vintage 6l6 tubes - vintage, valves

€89.10
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Gec kt66 grey - gec,

Gec kt66 grey - gec,

€100.00
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Marconi gec kt66 grey - kt66,

Marconi gec kt66 grey - kt66,

€120.00
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Rare marconi kt66 vt75 - kt66, fat

Rare marconi kt66 vt75 - kt66, fat

€300.00
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Kewtech multifunction tester - multifunction,

Kewtech multifunction tester - multifunction,

€52.00
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Valve tube boxes size - size, 4

Valve tube boxes size - size, 4

€7.50
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Gec kt66 grey - gec,

Gec kt66 grey - gec,

€100.00
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Kt66 vintage vlaves - g.e.c,

Kt66 vintage vlaves - g.e.c,

€160.00
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Vintage kt66 u52 - vintage, valved

Vintage kt66 u52 - vintage, valved

€42.30
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Kt66 valve jj new - x,

Kt66 valve jj new - x,

€75.48
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Amptata tube tester - t3, bias

Amptata tube tester - t3, bias

€56.63
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Gec kt66 grey smoke glass - gec,

Gec kt66 grey smoke glass - gec,

€120.00
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Gec kt66 clear glass used - ,

Gec kt66 clear glass used - ,

€115.00
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7581a 6l6gc usa vintage - usa,

7581a 6l6gc usa vintage - usa,

€239.00
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Amptata tube tester - tube,

Amptata tube tester - tube,

€52.79
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📊96 listings · from €3.8 · avg €147.28

Browse 96 kt66 listings currently in our index. Prices range from €3.8 to €1000, with an average of €147.28. 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 €3.8, while premium listings can reach €1000 — giving you a wide budget spread to work with. The average price of €147.28 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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