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Triode

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Home / / Triode refurbished & used for sale | For Sale USA
Decware ufo zen - decware,

Decware ufo zen - decware,

$3250.00
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Watt hybrid directly heated - 15,

Watt hybrid directly heated - 15,

$455.00
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Thermo scientific orion - thermo,

Thermo scientific orion - thermo,

$800.00
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Electro harmonix 2a3 gold - electro-harmonix,

Electro harmonix 2a3 gold - electro-harmonix,

$99.99
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Eimac 500z triode - 3-500z,

Eimac 500z triode - 3-500z,

$125.00
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Rca jan crc 808 vintage - jan,

Rca jan crc 808 vintage - jan,

$35.00
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6544 machlett shielded - shielded, grid

6544 machlett shielded - shielded, grid

$269.00
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Nos testing rca 211 - (1),

Nos testing rca 211 - (1),

$399.99
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Manufactured western - manufactured,

Manufactured western - manufactured,

$350.00
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Nice big 211 watter - big,

Nice big 211 watter - big,

$24.99
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811 beam watt triode - ,

811 beam watt triode - ,

$28.95
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Genuine audiotron t - genuine, e.t

Genuine audiotron t - genuine, e.t

$299.99
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National nl11826 power triode - national,

National nl11826 power triode - national,

$250.00
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3cx10000h3 national - 3cx10000h3,

3cx10000h3 national - 3cx10000h3,

$1999.99
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Orion single junction - orion™,

Orion single junction - orion™,

$240.00
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35b гс 35б tube - ГС-35Б,

35b гс 35б tube - ГС-35Б,

$155.00
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Stock 6n1p 6n1 6h1n - ,

Stock 6n1p 6n1 6h1n - ,

$32.50
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Western electric 216a - western,

Western electric 216a - western,

$149.95
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1320 tube socket nos not - nos,

1320 tube socket nos not - nos,

$920.00
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Nos nib matched pair type - ge,

Nos nib matched pair type - ge,

$299.99
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Nos hytron 841 - nos, tube

Nos hytron 841 - nos, tube

$100.00
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Amperex 11826 power - amperex, nl

Amperex 11826 power - amperex, nl

$100.00
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35b tube with cooler - tube,

35b tube with cooler - tube,

$400.00
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Vintage sleeve nos rca - nos,

Vintage sleeve nos rca - nos,

$3.99
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Siemens rs1026 tb3 750 02 - siemens,

Siemens rs1026 tb3 750 02 - siemens,

$97.58
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Rca 6f8g twin - twin, round

Rca 6f8g twin - twin, round

$30.00
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Rca 2a3 usa 95 - 1,

Rca 2a3 usa 95 - 1,

$175.00
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35b tube without - (2),

35b tube without - (2),

$150.00
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Rare nos rca deforest 800 - nos,

Rare nos rca deforest 800 - nos,

$225.00
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Vintage ther monic - vintage, tvtr

Vintage ther monic - vintage, tvtr

$220.00
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500z electron tube - tube, 3-500

500z electron tube - tube, 3-500

$264.99
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Amperex usa 5868 - 5868, rf

Amperex usa 5868 - 5868, rf

$249.95
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811a electronic enterprises - electronic,

811a electronic enterprises - electronic,

$32.99
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Croydon type 483 - croydon,

Croydon type 483 - croydon,

$28.00
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Pcs 6n1p 6n1 - pcs, (6n1,

Pcs 6n1p 6n1 - pcs, (6n1,

$27.50
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Nec 50c a10 - nec, vacuum

Nec 50c a10 - nec, vacuum

$248.00
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6ev7 vacuum tube - vacuum, nib

6ev7 vacuum tube - vacuum, nib

$7.99
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Rare arcturus 10y triode - rare,

Rare arcturus 10y triode - rare,

$50.00
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500z electron tube - electron, 3-500

500z electron tube - electron, 3-500

$263.00
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Thermo scientific 8157bnumd - thermo,

Thermo scientific 8157bnumd - thermo,

$240.00
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Nos nib pair - nib, hytron

Nos nib pair - nib, hytron

$34.99
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2a3 vt95 nos nib - nos/nib, rca

2a3 vt95 nos nib - nos/nib, rca

$109.99
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Eimac 1000h tube triode - eimac, triode,for

Eimac 1000h tube triode - eimac, triode,for

$270.00
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Triode wire labs american - labs,,

Triode wire labs american - labs,,

$449.00
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Raytheon jan 5702wb - jan,

Raytheon jan 5702wb - jan,

$22.99
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Vintage rca radiotron - vintage,

Vintage rca radiotron - vintage,

$400.00
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Custom dynamo 120 vacuum - custom, st-120

Custom dynamo 120 vacuum - custom, st-120

$500.00
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Single ended triode line stage - single,

Single ended triode line stage - single,

$1850.00
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Matched mil tungsol round - matched,

Matched mil tungsol round - matched,

$699.99
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Tested balanced rca 12ax7 - (1),

Tested balanced rca 12ax7 - (1),

$44.95
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Pcs 6n1p 6n1 ev - pcs, (6n1,

Pcs 6n1p 6n1 ev - pcs, (6n1,

$12.99
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Stock gm 70 gm70 - stock!, 2x

Stock gm 70 gm70 - stock!, 2x

$234.00
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Strong scarce deforest type - deforest,

Strong scarce deforest type - deforest,

$249.99
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Matching pair rca jan - jan, 6c8g

Matching pair rca jan - jan, 6c8g

$63.00
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Planar triode jan 6299 - planar, jan-6299

Planar triode jan 6299 - planar, jan-6299

$7.95
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Rare 265 triode jumbo - triode,

Rare 265 triode jumbo - triode,

$84.99
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Electron tube jan - (1),

Electron tube jan - (1),

$12.00
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500zg penta laboratories - penta,

500zg penta laboratories - penta,

$660.00
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Tungsol 6336 6336a 6336b - tungsol,

Tungsol 6336 6336a 6336b - tungsol,

$49.00
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Machlett high power triode - machlett,

Machlett high power triode - machlett,

$125.00
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Nice 101f tube tennis ball - tube,,

Nice 101f tube tennis ball - tube,,

$310.00
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Rca 830b vacuum tube - vacuum,

Rca 830b vacuum tube - vacuum,

$37.00
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Vintage cetron 300b vacuum - 300b,

Vintage cetron 300b vacuum - 300b,

$298.89
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Rca 6181 uhf power - 6181,

Rca 6181 uhf power - 6181,

$165.75
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190 nos tubes sylvania sn1551b - tubes,

190 nos tubes sylvania sn1551b - tubes,

$595.00
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Thermo 290a orion - thermo, 290a+

Thermo 290a orion - thermo, 290a+

$89.00
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Amperex 7119 dual triode - amperex,

Amperex 7119 dual triode - amperex,

$29.95
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General electronics 5814a - ge,

General electronics 5814a - ge,

$35.00
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Amperex 7119 e182cc - /, –

Amperex 7119 e182cc - /, –

$39.99
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Nos 5814a 12au7 - ge, industral

Nos 5814a 12au7 - ge, industral

$7.95
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Lot pcs 6n23p ev - lot, 10

Lot pcs 6n23p ev - lot, 10

$235.60
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6sl7gt nos nib sylvania dual - nos/nib,

6sl7gt nos nib sylvania dual - nos/nib,

$24.99
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Rca radiotron vacuum tube - 56,

Rca radiotron vacuum tube - 56,

$12.99
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Raytheon type triode - 40,

Raytheon type triode - 40,

$21.00
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6f5gt jan chs sylvania - 6f5gt,

6f5gt jan chs sylvania - 6f5gt,

$14.99
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Motorola 6sn7gtb vacuum tube - 6sn7gtb,

Motorola 6sn7gtb vacuum tube - 6sn7gtb,

$15.00
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Tesla e88cc 6922 cca - 2x, (6922

Tesla e88cc 6922 cca - 2x, (6922

$149.90
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Rare vintage ge14501 3v - ge14501, 6.3v

Rare vintage ge14501 3v - ge14501, 6.3v

$18.99
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6eu7 nos nib twin triode - nos/nib, ge

6eu7 nos nib twin triode - nos/nib, ge

$27.99
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Eight 1958 general electric - eight,

Eight 1958 general electric - eight,

$38.00
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Pcs 6n6p - 2,

Pcs 6n6p - 2,

$18.99
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Heintz kaufman k - &, h&k

Heintz kaufman k - &, h&k

$49.88
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Rca 5563 thyratron - rca, 5563-a

Rca 5563 thyratron - rca, 5563-a

$225.00
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12ax7 telefunken twin - 12ax7,

12ax7 telefunken twin - 12ax7,

$52.99
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Korg nutube 6p1 low - -, low-power

Korg nutube 6p1 low - -, low-power

$50.00
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6n2p double triode with - 6n2p-ev,

6n2p double triode with - 6n2p-ev,

$16.99
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Rare nos 12ax7s ecc83 - rare, rt

Rare nos 12ax7s ecc83 - rare, rt

$160.00
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Rare machlett 6c21 - machlett, ml-6c21

Rare machlett 6c21 - machlett, ml-6c21

$425.00
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6072 - (1),

6072 - (1),

$89.99
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Lot sonotone jan 6j6wa - of,

Lot sonotone jan 6j6wa - of,

$14.99
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1918 type pliotron - type, triode

1918 type pliotron - type, triode

$99.00
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Nos taylor vacuum tube - tz-40,

Nos taylor vacuum tube - tz-40,

$28.05
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Eimac 1000h tube - 3-1000h, triode,nos

Eimac 1000h tube - 3-1000h, triode,nos

$338.00
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5751 preamp tube - jj,

5751 preamp tube - jj,

$19.95
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Professional melglem - professional,

Professional melglem - professional,

$24.00
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Tb5 2500 606 electron - fu-606, tube

Tb5 2500 606 electron - fu-606, tube

$352.80
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📊96 listings · from $3.99 · avg $240.77

Browse 96 triode listings currently in our index. Prices range from $3.99 to $3250, with an average of $240.77. 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 triode →

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Whether you are looking for a brand-new or second-hand triode, 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 $3.99, while premium listings can reach $3250 — giving you a wide budget spread to work with. The average price of $240.77 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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