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Vacuum Tubes

The first electronic amplification of sound was done with Vacuum Tubes. We have pre-amp, power and rectifier vacuum tubes among other types in New Old Stock from the golden era of American & European manufacturing as well as current production tubes from today.

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T-EL84-SETVacuum Tube Sampler Set - EL84, 9 tubes total
Package of 9

Sampler set of EL84 vacuum tubes. Contains one each of the following: Electro-Harmonix EL84, Genalex Gold Lion EL84, JJ Electronic EL84, Mullard Reissue EL84, Sovtek EL84, Tung-Sol EL84, JJ Electronic EL844, Sovtek EL84M, Tube Amp Doctor EL84


$139.75
$124.38
You save: 11%
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T-12AX7A-CHINAVacuum Tube - 12AX7A, China

9 pin miniature preamp tube (Amplification Factor =100). This is the Chinese 12AX7A. The 12AX7A is a lower noise version of the 12AX7.


$10.85
$9.66
You save: 11%
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T-12AX7-SETVacuum Tube Set - 12AX7 Sampler, 10 total tubes
Package of 10

Ten 12AX7s. One of each of the following: JJ Electronic 12AX7, Mullard 12AX7, Tube Amp Doctor premium selected 12AX7, Ruby Tubes 12AX7, Sovtek 12AX7WA, JJ Electronic ECC803S, Chinese high-grade 12AX7B, Groove Tubes 12AX7, Electro-Harmonix 12AX7, Tung-Sol 12AX7


$139.94
$124.55
You save: 11%
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T-12AX7-SET_MINIVacuum Tube - Tube Set, Mini 12AX7 Sampler, 5 Total
Package of 5

Five 12AX7s. One of each of the following:



  • 12AX7-S JJ Electronic
  • 12AX7A-C5 Ruby Tubes
  • 12AX7WA Sovtek
  • 12AX7 Electro-Harmonix
  • 12AX7 Tung-Sol


We reserve the right to substitute another tube if one is unavailable or out of stock.


$69.50
$61.86
You save: 11%
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T-12AX7-SET-EH_JJVacuum Tube - Tube Set, 12AX7 Set, One EH and One JJ
Package of 2

Two 12AX7s. One of each of the following:



  • JJ Electronic 12AX7
  • Electro-Harmonix 12AX7

$24.70
$21.98
You save: 11%
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Vacuum Tube - 7189, Pentode, Beam

New Old-Stock (N.O.S.) tube. The 7189 is a power-amplifier pentode designed for use in the audio-frequency power output stage of television and radio receivers and high-fidelity amplifiers.


$60.90
$54.20
You save: 11%
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Vacuum Tube - 930, Photocell, Sound

New Old-Stock (N.O.S.) tube. The 930 is a gas phototube sensitive to red through infrared light.


$24.95
$22.21
You save: 11%
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Vacuum Tube - 25CD6G, Beam Pentode

New Old Stock (N.O.S.) tube. 25CD6GB is identical to the 6CD6GA except with different heater ratings. Beam power tube, octal base.


$8.05
$7.16
You save: 11%
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T-6550A-STR-TAD-XVacuum Tube - 6550A-STR, Tube Amp Doctor, Premium Selected

The Tube Amp Doctor 6550A-STR is built and performs to the same standards as the highly sought after GE 6550A. TAD has meticulously designed the plate material to be as strong and pure as possible resulting in an exceptionally stable, consistent, and reliable 6550. The TAD 6550A features a thick straight glass envelope, a metal base, and an authentic triple getter. The frequency response of this tube is remarkably balanced and smooth. Transparent natural lows and thick rich mids with silky highs make this an excellent tube for HiFi equipment as well as classic bass guitar amplifiers. The Tube Amp Doctor 6550A-STR offers outstanding performance in all applications. This tube is matched for both plate current and transconductance. The TAD 6550A-STR also passes all of the tests required in the Premium Selection process.


$43.95
Starting at $39.12
You save: 11%
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T-KT88-STR-TAD-XVacuum Tube - KT88-STR, Tube Amp Doctor, Premium Selected

The Tube Amp Doctor KT88-STR is build just like the original tube with its thick curved glass envelope and metal base. The similarities don’t stop with its attractive appearance. This KT88 offers a lively and dynamic tone that is ideal in both HiFi audio amplifiers and high wattage guitar / bass amps. The sound of the TAD KT88 is pleasantly warm at all frequencies with detailed mids, articulate and nuanced highs, and harmonically rich and natural lows. The linear response is excellent. The TAD KT88-STR is matched for both plate current and transconductance and passes all of the tests of the TAD Premium Selection process.


$49.25
Starting at $43.83
You save: 11%
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(83 pages)
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