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Triode

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Rca globe triode vacuum - rca,

Rca globe triode vacuum - rca,

$381.10
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Thermo scientific orion - orion, ross

Thermo scientific orion - orion, ross

$800.00
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Great pair arcturus 6n6g - arcturus, duo

Great pair arcturus 6n6g - arcturus, duo

$49.95
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Orion single junction - orion™,

Orion single junction - orion™,

$240.00
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Appears lightly used - **, "lightly

Appears lightly used - **, "lightly

$129.99
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Rare nos amazing matched - rare, trio

Rare nos amazing matched - rare, trio

$495.00
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Eimac 158 8877 high - /, high-power

Eimac 158 8877 high - /, high-power

$550.00
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Eimac varian 826 power - y-826,

Eimac varian 826 power - y-826,

$99.00
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100t triode tube - 100t,

100t triode tube - 100t,

$99.99
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Sylvania vacuum tubes set - sylvania,

Sylvania vacuum tubes set - sylvania,

$75.00
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Rca jan crc 808 - 808, triode

Rca jan crc 808 - 808, triode

$30.00
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Manufactured western - u.s.,

Manufactured western - u.s.,

$350.00
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Stc 108a pair vintage - 3a/108a,

Stc 108a pair vintage - 3a/108a,

$234.76
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3cx10000h3 national - 3cx10000h3,

3cx10000h3 national - 3cx10000h3,

$1999.99
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500z electron tube 500 - electron, 3-500

500z electron tube 500 - electron, 3-500

$264.99
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Tb5 2500 606 electron tube - electron,

Tb5 2500 606 electron tube - electron,

$349.25
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New old stock original carton - old,

New old stock original carton - old,

$29.99
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Decware ufo zen triode - 2.1,

Decware ufo zen triode - 2.1,

$3250.00
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Dynaco mark iii - dynaco,

Dynaco mark iii - dynaco,

$650.00
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Nos national union - 1, 7n7

Nos national union - 1, 7n7

$25.00
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Electron tube jan - electron, 5670w

Electron tube jan - electron, 5670w

$12.00
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Taylor 203 high power 100 - **, 203-b

Taylor 203 high power 100 - **, 203-b

$79.99
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5691 rca used military spec - rca,

5691 rca used military spec - rca,

$64.99
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Rca 203a radiotron vacuum tube - rca,

Rca 203a radiotron vacuum tube - rca,

$84.50
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Eimac 500z triode - 3-500z,

Eimac 500z triode - 3-500z,

$339.99
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Nos testing rca 211 - nos,

Nos testing rca 211 - nos,

$350.00
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50pcs 6s52n 7895 miniature - 6s52n-v,

50pcs 6s52n 7895 miniature - 6s52n-v,

$300.00
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Vintage sleeve nos - vintage, of

Vintage sleeve nos - vintage, of

$3.99
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35b гс 35б - ГС-35Б, power

35b гс 35б - ГС-35Б, power

$155.00
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Vintage ther monic - vintage, tvtr

Vintage ther monic - vintage, tvtr

$220.00
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Watt hybrid directly - watt, heated

Watt hybrid directly - watt, heated

$455.00
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Tb5 2500 606 electron tube - tb5/2500, fu-606

Tb5 2500 606 electron tube - tb5/2500, fu-606

$341.16
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Nos nib quad vintage - nib,

Nos nib quad vintage - nib,

$1249.99
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35b tube with cooler - gs-35b,

35b tube with cooler - gs-35b,

$400.00
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Vintage rca electronic - rca,

Vintage rca electronic - rca,

$40.00
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New nos electronic enterprises - new,

New nos electronic enterprises - new,

$219.95
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Nos nib matched pair - pair, ge

Nos nib matched pair - pair, ge

$299.99
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National nl11826 power triode - national,

National nl11826 power triode - national,

$250.00
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Tb5 2500 606 - tb5/2500, electron

Tb5 2500 606 - tb5/2500, electron

$328.10
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Tb5 2500 606 electron - electron, tube

Tb5 2500 606 electron - electron, tube

$352.80
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New boxed phillips ecg - boxed,

New boxed phillips ecg - boxed,

$29.99
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Rca 211 vintage - rca, triode

Rca 211 vintage - rca, triode

$1181.40
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Lot 958a 212 acorn - 4:958a, vt-212

Lot 958a 212 acorn - 4:958a, vt-212

$16.00
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Stock 4pcs 6n1p - 4pcs, 6n1

Stock 4pcs 6n1p - 4pcs, 6n1

$29.00
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Raytheon ecc88 pair vintage - raytheon,

Raytheon ecc88 pair vintage - raytheon,

$163.87
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Toshiba 12at7 pair - hi-s,

Toshiba 12at7 pair - hi-s,

$163.87
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Valvo pair vintage - vintage, triode

Valvo pair vintage - vintage, triode

$239.33
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Stock 6n1p 6n1 6h1n - ,

Stock 6n1p 6n1 6h1n - ,

$32.50
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Nos delco 7n7 - delco, vacuum

Nos delco 7n7 - delco, vacuum

$25.00
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Nos cbs hytron - 1,

Nos cbs hytron - 1,

$25.00
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Nice big 211 - uv, 50

Nice big 211 - uv, 50

$24.99
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Eimac 327 uhf - 327-a, transmitting

Eimac 327 uhf - 327-a, transmitting

$59.99
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6544 machlett shielded grid - ml-6544,

6544 machlett shielded grid - ml-6544,

$269.00
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Lot v70d united - 2,

Lot v70d united - 2,

$60.00
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Nos nib pair - nos, 1626

Nos nib pair - nos, 1626

$34.99
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Eimac 500z triode - eimac,

Eimac 500z triode - eimac,

$37.50
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Vintage dumont brand 12bh7a - vintage,

Vintage dumont brand 12bh7a - vintage,

$16.00
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6sl7gt nos nib sylvania - nos/nib, dual

6sl7gt nos nib sylvania - nos/nib, dual

$24.99
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Nos hytron vacuum - vacuum, tube

Nos hytron vacuum - vacuum, tube

$150.00
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Korg nutube 6p1 - korg,

Korg nutube 6p1 - korg,

$50.00
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Croydon type 483 power - type,

Croydon type 483 power - type,

$28.00
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Lot pcs 6n23p - lot, 10

Lot pcs 6n23p - lot, 10

$235.60
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Genuine audiotron t - genuine, e.t

Genuine audiotron t - genuine, e.t

$299.99
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Western electric vt1 - electric,

Western electric vt1 - electric,

$323.93
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Nos arcturus 7n7 - 1, tube

Nos arcturus 7n7 - 1, tube

$25.00
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Valvo pair vintage - ba, triode

Valvo pair vintage - ba, triode

$207.32
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Eimac 129 304tl - 304tl, low

Eimac 129 304tl - 304tl, low

$29.75
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Custom dynamo 120 - dynamo, st-120

Custom dynamo 120 - dynamo, st-120

$400.00
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Vintage rca radiotron 211 - rca,

Vintage rca radiotron 211 - rca,

$699.99
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Universal aluminum heatsink - aluminum,

Universal aluminum heatsink - aluminum,

$17.96
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Lta linear tube - linear,

Lta linear tube - linear,

$1200.00
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Matching pair rca jan - crc, 6c8g

Matching pair rca jan - crc, 6c8g

$58.00
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3c24 cv789 matched pair - matched,

3c24 cv789 matched pair - matched,

$230.18
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190 nos tubes sylvania - tubes, sn1551b

190 nos tubes sylvania - tubes, sn1551b

$446.25
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Siemens rs1026 tb3 - 1x,

Siemens rs1026 tb3 - 1x,

$97.04
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Tungsol 6336 6336a 6336b - tungsol,

Tungsol 6336 6336a 6336b - tungsol,

$49.00
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Rca 8058 nuvistor tubes - x,

Rca 8058 nuvistor tubes - x,

$30.00
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Dynaco mark iii mono tube - mark,

Dynaco mark iii mono tube - mark,

$650.00
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Nos raytheon 12sq7gt vacuum - 1,

Nos raytheon 12sq7gt vacuum - 1,

$20.00
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Nos reliable 7n7 vacuum - 7n7, tube

Nos reliable 7n7 vacuum - 7n7, tube

$25.00
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Vintage mullard ecc33 black - ecc33,

Vintage mullard ecc33 black - ecc33,

$299.00
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Cetron jan 811a vacuum - 811a,

Cetron jan 811a vacuum - 811a,

$149.95
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Amperex 11826 power triode - amperex,

Amperex 11826 power triode - amperex,

$100.00
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Rca 5844 double triode - 5844, 7-pin

Rca 5844 double triode - 5844, 7-pin

$12.99
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Zenith type triode mesh - type,

Zenith type triode mesh - type,

$15.00
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Vintage cetron 300b - 300b, vacuum

Vintage cetron 300b - 300b, vacuum

$298.89
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Cetron t200 high - t200, (hf-200)

Cetron t200 high - t200, (hf-200)

$230.00
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Rca 6lu8 med - 6lu8, med.-mu

Rca 6lu8 med - 6lu8, med.-mu

$9.99
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Nice filament rca - 3,

Nice filament rca - 3,

$14.99
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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,

$190.00
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New 3cpx1500a7 high frequency - new,

New 3cpx1500a7 high frequency - new,

$1692.80
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📊92 listings · from $3.99 · avg $288.28
⚠️ These listings were last updated more than 9 days ago. Search for fresh listings

Browse 92 triode listings currently in our index. Prices range from $3.99 to $3250, with an average of $288.28. 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 triode →

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Everything you need to know about triode

Whether you are looking for a brand-new or second-hand triode, eBay offers one of the largest selections available online. With 92 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 $288.28 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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