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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-KT88-JJVacuum Tube - KT88, JJ Electronics

A sonically faithful reproduction of the original tubes with a robust construction encased in a thick glass envelope. The JJ KT88 delivers a powerful 42 Watts with plenty of headroom to spare. This tube has a tone that is warm and lively with a detailed and balance response. The JJ KT88 is an excellent choice for Hi-Fi stereo equipment as well as guitar amplifiers. It can be used in place of 6550 tubes.


Starting at $39.95
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T-KT88-MULVacuum Tube - KT88, Mullard Reissue
Premium Octal beam Tetrode, an exact copy of the KT88 valve manufactured by Marconi-Osram for Marshall in the late 1960s and 70s. Powerful, balanced and detailed soundstage with full bass.

  • Direct replacement for any 6550 types
  • Excellent replacement output valve for the Marshall Major, retains the original sound
  • Equally well suited for hifi
Starting at $43.95
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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.


Starting at $49.25
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T-KT88-VAVacuum Tube - KT88, Valve Art

Octal power tube (Max Plate Watts = 42W).


Starting at $40.92
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T-KT90-EHVacuum Tube - KT90, Electro-Harmonix
Electro-Harmonix KT90 power tube. Made in Russia.
Absolutely the best KT90 ever developed. Wafer base height of 0.34”.
$47.95
Starting at $42.95
You save: 10%
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T-PX300B-GOLD-GENVacuum Tube - PX300B, Genalex Gold Lion, Gold Pin

Genalex Gold Lion PX300B power triode tube with gold pins. Made in Russia. In Europe during the 1930s the GEC (Genalex)/Marconi-Osram PX4 and PX25 power triodes were considered the finest audio triodes of their day. In keeping with the tradition of Genalex to provide the highest quality tubes, New Sensor has released the Genalex Gold Lion PX300B audio power triode. This tube is the highest quality 300B type available and is considered to be an upgrade in any 300B amplifier.


Starting at $143.95
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T-SSR01Solid State Rectifier - For 5AR4, 5U4, 5Y3 Tubes

Solid State Rectifier Direct plug-in replacement for 5AR4, 5U4 and 5Y3 rectifier vacuum tubes in amplifiers with center tapped secondary power transformer. Use when less 'sag' is desired in the power supply; just switch back to the tube rectifier when 'sag' is desired.


$9.95
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Vacuum Tube - UM80, Indicator, Electron Ray
Tuning indicator for AM receivers
$18.90
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Vacuum Tube - X201A, Triode, Globe, Long Pin

Triode, Globe, Long Pin


$54.10
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(83 pages)
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