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.
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 $59.95
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 $72.20
The Shuguang KT88-98 vacuum tube is an octal based beam power tetrode that delivers lush harmonics and exceptional clarity for studio or stage. Renowned for its robust construction and exceptional sound quality, this KT88 tube is a staple for musicians and audiophiles alike seeking that classic tube warmth and clarity. Crafted with precision and expertise, the KT88-98 boasts a rich harmonic spectrum, delivering smooth highs, tight lows, and a lush midrange that breathes life into your music. Whether you're a seasoned professional or an avid enthusiast, these tubes ensure your sound reaches its fullest potential, with unparalleled reliability and consistency. Engineered for durability and longevity, the Shuguang KT88-98 tube is built to withstand the rigors of constant use, making it ideal for both studio recording and live performances.
Starting at $48.95
The TAD KT88-STR Redbase® is built in the style of the early British MOV KT88 with the big and heavy glass envelope and beautifully polished metal base. The Redbase® features a gold control grid for outstanding performance and reliable stability. A breath-takingly big and precise tone and great appearance make the new TAD KT88-STR Redbase® the best choice for both, high-end audio applications and powerful bass guitar amps, providing a natural and three dimensional tone with pleasingly full warmth and fine, subtle highs. A very musical response, with great sound and finest details in mids and top-end; a linear and harmonious overall response with a very organic tone, make the TAD KT88-STR Redbase® TAD’s favorite tube in the KT88 and 6550A class.
Starting at $67.50
The Svetlana KT88 is an excellent choice for users looking to upgrade their current KT88 tubes. This tube is a glass envelope beam power tetrode. It is intended for audio frequency power amplifiers. High plate dissipation, close manufacturing tolerances, and thorough processing provides improved reliability and superior sonic performance. The Svetlana KT88 is manufactured in the Svetlana factory in St.
Starting at $73.40
Electro-Harmonix KT90 power tube. Made in Russia.
Absolutely the best KT90 ever developed. Wafer base height of 0.34”.
Absolutely the best KT90 ever developed. Wafer base height of 0.34”.
Starting at $81.50
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 $195.45
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