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.

Apex Matched

Custom-designed and custom-built by industry experts with ideal tube matching in mind. Apex tubes are matched more closely and more accurately than you'll find anywhere else.

Tube Amp Doctor (TAD)

P-YJR Solid State Rectifier - Yellow Jackets® YJR, For 5AR4, 5U4, 5Y3
The YJR is a direct plug-in replacement adapter for use in most amplifiers that use 5AR4/GZ34, 5U4, 5Y3 or similar full-wave rectifier tubes. The YJR converts your amp's vacuum tube rectifier to a solid state rectifier, reducing tube sag for a tighter sound and feel. The tube rectifier can easily be swapped back in when sag is desired. This Yellow Jacket® is a solid state device and as such does not come with vacuum tubes.
  • Converts most audio amplifiers which use a vacuum tube rectifier 5AR4/GZ34, 5U4 or 5Y3 to a solid state device.
  • Safe for all common amplifiers and transformers.

All Yellow Jackets® have a one year warranty against manufacturer defects.
$14.95
T-E34L-BL-JJ Vacuum Tube - E34L, JJ Electronics, Blue Glass
Blue glass envelope. The JJ Electronic E34L adds more power to a standard EL34 due to its higher grid voltage rating. This increase gives the tube more headroom and a tighter response on the low end. The wide frequency response of this tube offers excellent harmonics that work in a variety of genres ranging from the cleanest cleans to rich and aggressive breakup.
Starting at $18.95
T-E34L-JJ Vacuum Tube - E34L, JJ Electronics
The JJ Electronic E34L adds more power to a standard EL34 due to its higher grid voltage rating. This increase gives the tube more headroom and a tighter response on the low end. The wide frequency response of this tube offers excellent harmonics that work in a variety of genres ranging from the cleanest cleans to rich and aggressive breakup.
Starting at $13.95
T-ECC83WA-TAD Vacuum Tube - ECC83-WA, Tube Amp Doctor, Premium Selected
The TAD ECC83 WA Selected provides a stunning warm tone, thick midrange and sweet natural harmonics. We designed it with a triple mica construction for low noise performance. Perfect for clean or moderate gain preamps as well as for high-gain amps from V2 position. Its great dynamics, low noise operation and balanced warm tone make the TAD ECC83 WA to be an excellent all-rounder with great value for money.
$13.50
T-EL34B-TAD-X Vacuum Tube - EL34B, Tube Amp Doctor
Octal power tube (Max Plate Watts = 25W) Sensational new high-gain EL34 tube with a very dynamic tone. An authentic remake of the British Mullard EL34. The clear and harmonic open top end allows for great clean tone and at the same time the TAD EL34B-STR offers incredibly powerful mids and equally powerful bass.
Starting at $21.25
T-EL34B-TUNG Vacuum Tube - EL34B, Tung-Sol Reissue
Higher impedance design with increased touch responsiveness and a unique clipping characteristic with a hint of the 6L6 sound. Made in Saratov, Russia
Starting at $25.75
T-EL34B-VA Vacuum Tube - EL34B, Valve Art
Octal power tube (Max Plate Watts = 25W) EL34B(with shadow grid) is a high performance improved version of pentode EL34A to solve the problem of overheated No. 2 Grid. Maximum anode dissipation is 25W and output power of single tube is over 10W in A1 amplification mode. When used in AB1 mode, two tubes can output over 35W. It can substitute 6CA7.
Starting at $13.15
T-EL34-EH Vacuum Tube - EL34, Electro-Harmonix
Most common power pentode found in British amplifiers such as Marshall, Hiwatt, Laney, and Sound City. The EL34EH defines the classic British rock sound of the 1960s and 1970s.
Starting at $17.95
T-EL34II-JJ Vacuum Tube - EL34 II, JJ Electronics, Pentode
A different construction of the classic EL34 tube that offers a different tonal palette than the original. This tube has a more compact plate structure than standard EL34’s. The JJ EL34 II has an increased low to low-mid end with plenty of headroom to spare. The JJ EL34 II is stronger than the original but not harsh sounding in any way.
Starting at $16.00
T-EL34-JJ Vacuum Tube - EL34, JJ Electronics
Another classic from JJ. This tube features a rugged construction leading to an incredibly reliable EL34 with astonishing tone. Overall the sound is nicely balanced with tight lows, a rich and dynamic mid range and clear highs. The JJ EL34 is a great replacement for guitar amplifiers and stereo amps as well.
Starting at $13.95
T-EL34-MUL Vacuum Tube - EL34, Mullard Reissue
Copy of the XF2 Mullard EL34 of the 60s. The perfect power tube for the Dynaco ST-70 or vintage Marshall amplifiers. the best current production EL34 available Made in Saratov, Russia
Starting at $21.95
T-EL84-EH Vacuum Tube - EL84, Electro-Harmonix
Tube measurements are as follows:
  • Height: 2.75” (without pins)*
  • Diameter: 0.87” *

*Note: Due to the method of production in regards to the glass, measurements may vary slightly.
Starting at $11.70
T-EL84-JJ Vacuum Tube - EL84, JJ Electronics
The JJ Electronic EL84 is a solidly built EL84 / 6BQ5 with excellent tonal qualities. JJ’s rugged construction of this tube offers high reliability without any compromise to the sound. This tube has solid lows with warm bright mids and shimmery highs. When saturated the harmonics are rich and dynamic. The JJ EL84 nails the classic sound of this tube. This tube can replace any EL84 or 6BQ5 tube.
Starting at $10.25
T-EL84-MUL Vacuum Tube - EL84, Mullard Reissue, Made in Russia
Russian made Mullard reissue EL84. Copy of the original. Black plates, carbonized screens, and gold plated grids. This tube was the "Voice of the Vox AC-30." A mainstay of affordable quality hi-fi amplifiers of the 1960s. Tube measurements are as follows:
  • Height: 2.75” (without pins)*
  • Diameter: 0.87”*

*Note: Due to the method of production in regards to the glass, measurements may vary slightly.
Starting at $15.50
T-EL84-SOVT Vacuum Tube - EL84, Sovtek
The Sovtek EL84 series produce an unbeatable smooth, warm, distortion. Excellent replacements in vintage VOX AC-30s and the like. Tube measurements are as follows:
  • Height: 2.75” (without pins)*
  • Diameter: 0.87”*

*Note: Due to the method of production in regards to the glass, measurements may vary slightly.
Starting at $10.95
T-EL84-TAD-X Vacuum Tube - EL84, Tube Amp Doctor
Tube Amp Doctor opted for the thickest glass possible and the heaviest construction available, just like the Russian EL84M, and combined these features with the sonically most promising cathode plate option. The sound can be described as very harmonic in the middle and treble frequencies, without adding too much power to the bass.
Starting at $16.75
T-EL84-TUNG Vacuum Tube - EL84/6BQ5, Tung-Sol Reissue
Due to many requests by fans, the Tung-Sol EL84/6BQ5 has been reissued. The Tung-Sol EL84 / 6BQ5 was a popular OEM tube for American-made EL84 / 6BQ5 guitar amplifiers, such as those built by Gibson and Harmony. Due to its rugged construction and conservative ratings, it is the most reliable current production EL84 type available for use in Vox AC-30 type amplifiers. In addition, its linearity and tone characteristic make it the ideal replacement for EL84 hi-fi amplifiers, such as those built by Fisher, Scott, and Harmon-Kardon. Tube measurements are as follows:
  • Height: 2.75” (without pins)*
  • Diameter: 0.87”*

*Note: Due to the method of production in regards to the glass, measurements may vary slightly.
Starting at $14.50
T-EL509-S-JJ Vacuum Tube - EL509, JJ Electronics
Package of 2
The JJ Electronic EL509S is an eight pin octal based version of the EL509 / EL519. This modified version does not have the top plate cap which is instead wired to a pin on the octal base. This tube is rated for 700V and 42 Watts plate dissipation. The JJ EL509 is popularly used in output transformerless OTL amplifiers.
Starting at $38.95
T-EL844-JJ Vacuum Tube - EL844, JJ Electronics
The JJ Electronic EL844 is a variation on the classic tube which reduces the overall headroom by 25%. With the reduced power, hitting that rich distortion that the EL84 is notorious for is more manageable. This tube will hit full saturated power tube sounds without having to crank the amps volume as high which makes them a great choice for recording as well as home / bedroom use.
Starting at $12.50
T-KT66-JJ Vacuum Tube - KT66, JJ Electronics
A sonically faithful reproduction of the original tubes with a robust construction encased in a thick glass envelope. The JJ KT66 delivers a powerful 25 Watts with plenty of headroom. This tube has a tone that is warm, thick, and straightforward. With a more balanced sound than the 6L6GC, the JJ KT66 is an excellent choice for a full bodied tone.
Starting at $39.95
T-KT66-VA Vacuum Tube - KT66, Valve Art
Octal power tube (Max Plate Watts = 25W)
Starting at $33.98
T-KT77-JJ Vacuum Tube - KT77, JJ Electronics
A reproduction of the original tubes that captures the sound that made the KT77 famous. In their typical fashion, JJ has built this tube in a solid construction that is robust and highly reliable. This tube has more headroom than a typical EL34. This is an excellent tube for adding more power to the sound of an EL34 amp.
Starting at $19.95
T-KT88-BL-JJ Vacuum Tube - KT88, JJ Electronics, Blue Glass
Blue glass envelope. 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.
Starting at $44.95
T-KT88-JJ Vacuum 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
Don't see what you're looking for? Send us your product suggestions!