You are here

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. Visit https://www.apexmatching.com for more information
Filter these results
T-EL84-SOVTVacuum 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.


Please Log In to
view prices
Click to read more
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.


Please Log In to
view prices
Click to read more
T-EL34-MULVacuum Tube - EL34, Mullard Reissue

Premium high-voltage power pentode. An extremely faithful reissue of the XF2 Mullard EL34 from the 1960s.


Please Log In to
view prices
Click to read more
T-EL84-TUNGVacuum 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.


Please Log In to
view prices
Click to read more
T-7591-S-JJVacuum Tube - 7591, JJ Electronics

The JJ Electronic 7591 is a reliable and accurate reproduction of the classic tube. This 19 Watt pentode has been used in a variety of amplifiers including Hi-Fi amps and Ampegs. The JJ 7591 is a great replacement for any 7591 tube position.


Please Log In to
view prices
Click to read more
T-5881WXT-SVVacuum Tube - 5881WXT, Sovtek
The Sovtek 5881WXT is the same as the 5881 but with a full size base for easy installation in vintage amp designs. The Sovtek 5881 delivers a warm, round tone that "sweetens" any vintage or modern guitar amp design. Built to rigid military standards, the 5881 will tolerate higher voltages than any other 6L6. In fact, they're frequently used as replacements for the old 7027 model in vintage Ampegs. Extremely consistent from piece to piece. The Sovtek 5881 has a heater voltage of 6.3 volts at 0.88 amperes.
Please Log In to
view prices
Click to read more
T-6L6-EHVacuum Tube - 6L6, Electro-Harmonix

Superior power Beam tetrode with large plate dimensions and improved grid structure for increased power handling capabilities. Excellent tone and performance compared to most other 6L6 or KT66 types.


Please Log In to
view prices
Click to read more
T-5881-SOVTVacuum Tube - 5881 / 6L6WGC, Sovtek

The 5881 is a very reliable tube that is widely used in many current production tube amplifiers. It has a warm tone with good 'bite.' This modern version is able to tolerate higher voltages than its 5881 / 6L6 cousins. The Sovtek 5881 delivers a warm, round tone that "sweetens" any vintage or modern guitar amp design. Built to rigid military standards, the 5881 will tolerate higher voltages than any other 6L6. In fact, they're frequently used as replacements for the old 7027 model in vintage Ampegs. Extremely consistent from piece to piece.


Please Log In to
view prices
Click to read more
T-EL34B-VAVacuum 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.


Please Log In to
view prices
Click to read more
T-EL84-MULVacuum Tube - EL84, Mullard Reissue

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.


Please Log In to
view prices
Click to read more
Don't see a product you're looking for? Send us your product suggestions!
Subscribe to RSS - Vacuum Tubes