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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-5Y3GT-TADVacuum Tube - 5Y3GT, Tube Amp Doctor, Premium Selected, Rectifier
The Tube Amp Doctor 5Y3GT / 6087 is a small bottle rectifier designed to perform closely to the original rectifier tubes used in many 1950s tweed amplifiers. This rectifier offers high reliability due to its rugged construction and the Tube Amp Doctor Premium Selection process. The TAD 5Y3GT is a great tube for vintage style sag compression.
$14.65
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T-6SL7GT-TADVacuum Tube - 6SL7GT, Tube Amp Doctor, Premium Selected
The Tube Amp Doctor 6SL7GT meets all of the reliability and quality requirements of a TAD Premium Selected tube including low noise and gain balanced triodes. This 6SL7 has a great lively tone with smooth and clear highs and a sonically rich mid range. The TAD 6SL7GT can also be used as an upgrade for Russian 6N9 and 6N9P tubes.
$24.95
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T-7025-S-TADVacuum Tube - 7025 S, Tube Amp Doctor, Premium Selected

The vintage made in England Mullard ECC83 has been accurately recreated in the Tube Amp Doctor 7025 S. This highly sought after tube is regarded by many as the best dual triode to have ever been created for audio use. TAD offers a reliable and affordable way to experience the sound of this legendary tube.



The 7025 S is notable for its rich and complex harmonics. The warmth in the midrange of this tube stands out among similar preamp tubes. The TAD 7025 has nice round clean tones as well as a creamy yet articulate overdrive. Its rugged mechanical construction with extra thick mica spacers along with TAD’s premium selection process ensures a highly reliable preamp tube. Tube Amp Doctor especially recommends the 7025 S for use in British and British style amplifiers.



The Tube Amp Doctor 7025 works in any 7025, 12AX7, or ECC83 position.


$32.95
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T-EF86-TADVacuum Tube - EF86/6267, Tube Amp Doctor, Premium Selected
The Tube Amp Doctor EF86 / 6267 is a low noise and low microphonic version of the vintage pentode. These tubes were famously used in classic HiFi equipment and microphone preamps. The original Vox® AC15 circuit also used an EF86 and now, thanks to its recent availability, there are plenty of options for guitar amplifiers utilizing this unique tube.

The TAD EF86 / 6267 meets all of the standards of the Tube Amp Doctor Premium Selection process. This tube has a rugged construction featuring an aesthetically pleasing perforated shield. The TAD EF86 / 6267 will work in and EF86 or 6267 position.
$22.95
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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
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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.


$67.55
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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
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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.


$9.59
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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


$139.65
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T-6SN7-JJVacuum Tube - 6SN7, JJ Electronics

The JJ Electronic 6SN7 is the classic double triode with a rugged construction the offers the high reliability that JJ is known for. The JJ 6SN7 features the outstanding linearity and sound of the original tubes. This tube is an excellent replacement for Hi-Fi amplifiers and preamps and will replace any 6SN7, 6SN7GTA, 6SN7GTB, or 6SN7GT.


$16.50
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