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.
T-12AX7-GOLD-GEN Vacuum Tube - 12AX7/B759, Genalex Gold Lion, Gold Pin
Genalex Gold Lion ECC83/B759 (12AX7) dual triode preamp tube with gold pins. Made in Russia. Original Genalex Gold Lion ECC83/B759 tubes are considered among the best 12AX7 types ever made. They are hard to find and when they are available, they are expensive. They exhibit a large detailed soundstage that is sought after by discerning audiophiles who demand the highest quality sound. The reissue Genalex Gold Lion ECC83/B759 recreates the sound signature of the original. This tube features balanced sections and gold plated pins.
$43.95
T-12AX7-GEN Vacuum Tube - 12AX7, Genalex Gold Lion, Standard
Genalex Gold Lion ECC83 (12AX7) dual triode preamp tube with standard pins. Made in China. The Genalex Gold Lion 12AX7/ECC83 Standard Pins is a low cost alternative to the Genalex Gold Lion B759/12AX7 Gold Pins. This tube has a short plate format for reduced microphonics and has been put through a special selection process to ensure low noise and good balance of gain between the two triode sections. Get Genalex Gold Lion quality at almost half the cost.
$24.75
T-5AR4-GEN Vacuum Tube - 5AR4/GZ34/U77, Genalex Gold Lion
Genalex Gold Lion U77 / GZ34 full-wave rectifier tube. Made in Russia.
$38.95
T-6V6GT-GEN Vacuum Tube - 6V6GT/CV-511, Genalex Gold Lion
Genalex Gold Lion 6V6GT / CV511 beam-power tube. Made in Russia.
Starting at $30.95
Save 9%
Originally: $33.95
T-12AT7-GOLD-GEN Vacuum Tube - 12AT7/B739, Genalex Gold Lion, Gold Pin
Genalex Gold Lion ECC81/B739 (12AT7) dual triode preamp tube with gold pins. Made in Russia. Original Genalex Gold Lion ECC81/B739 tubes are considered the best 12AT7 types ever made. They are also among the rarest types available. They exhibit a large detailed soundstage that is characterized by an expressive midrange, deep tight bass, and a smooth extended high end. The reissue Genalex Gold Lion ECC81/B739 recreates the sound signature of the original. This tube features balanced sections and gold plated pins.
$42.95
T-12AU7-GOLD-GEN Vacuum Tube - 12AU7/B749, Genalex Gold Lion, Gold Pin
Genalex Gold Lion ECC82/B749 (12AU7) dual triode preamp tube with gold pins. Made in Russia. The original Genalex Gold Lion ECC82/B749 is one of the most rare 12AU7 types ever made. This tube featured superb linearity, balanced sections, and extremely low noise. The reissue Genalex Gold Lion ECC82/B749 features gold plated pins and has been carefully engineered to recreate all of the attributes of the original. This tube is a premium replacement for all 12AU7, ECC82, 5814, and 6189 types.
$44.75
T-6922-GOLD-GEN Vacuum Tube - 6922, Genalex Gold Lion, Gold Pin
Genalex Gold Lion E88CC/6922 dual triode preamp tube with gold pins. Made in Russia. The Genalex Gold Lion E88CC/6922 is a premium grade selected small signal twin-triode that is a suitable replacement for all 6DJ8, ECC88, 6922, E88CC, and 7308 types. This tube features gold plated pins and is manufactured to extremely tight specifications, making it the highest quality current production E88CC/6922 available.
$44.95
T-EL84-GEN Vacuum Tube - EL84/N709, Genalex Gold Lion
Genalex Gold Lion N709 / EL84 power pentode tube. Made in Russia. 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 $25.50
Save 5%
Originally: $26.95
T-KT66-GEN Vacuum Tube - KT66, Genalex Gold Lion
Genalex Gold Lion KT66 power tube. Made in Russia.
Exact copy of the original clear glass KT66. The tube that created “The Bluesbreaker Tone.” used in 50’s-60’s hi-fi favorites such as the Heathkit W-5M and many Leak amplifiers.
Starting at $37.95
Save 5%
Originally: $39.95
T-KT77-GEN Vacuum Tube - KT77, Genalex Gold Lion
Genalex Gold Lion KT77 beam-power tetrode tube. Made in Russia.
A beam tetrode with an absolute maximum anode dissipation rating of 32 watts. The KT77 is designed for use in the output stage of an af amplifier. Two valves in Class AB1 give a continuous output of over 70 W.
Starting at $42.95
Save 12%
Originally: $48.95
T-KT88-GEN Vacuum Tube - KT88, Genalex Gold Lion
KT88 power tube reissue of Genalex Gold Lion. Made in Russia.
In 1957 Marconi-Osram Valve Co. (Genalex) introduced the "King of Power Tubes", the legendary Gold Lion KT88. This tube became the heart and soul of such classics as the Dynaco Mark III, McIntosh MC275, and Marshall Major. Unfortunately, Genalex ceased tube production in the early 1980s and the Genalex Gold Lion KT88 has become very expensive and hard to find.
After extensive research and engineering, New Sensor Corp. has reissued the famed Genalex Gold Lion KT88.
Starting at $119.00
T-PX300B-GOLD-GEN Vacuum 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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