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-12AT7-TUNG Vacuum Tube - 12AT7, Tung-Sol Reissue
Tung Sol 12AT7W / 6201 dual triode preamp tube. Made in Russia. Premium Twin Triode ideal for use in reverb and driver circuits. Superior dissipation compared to NOS versions of this tube.
• Extra-low microphonics makes it the best 12AT7 choice for reverb circuits. Also suitable for HiFi.
• Factory selected for closest tolerances and most consistent performance
• ECC81 equivalent
$19.95
T-6550-TUNG Vacuum Tube - 6550, Tung-Sol Reissue
Copy of the original type 3 Tung-Sol 6550 made in the 1960s. Triple getter, carbonized screen, and gold plated grid. The current production benchmark of the classic 6550.
Made in Saratov, Russia
Starting at $45.95
T-12AT7-TAD Vacuum Tube - 12AT7 / ECC81-C, Tube Amp Doctor, Premium Selected
Rich-sounding Reverb Driver - Also Great for Headphone Amps! Low noise tube, selected for best symmetry and balance. A strong driver tube and a wounderfully rich-sounding reverb driver.
$17.82
T-12AU7A-EH Vacuum Tube - 12AU7A / ECC82, Electro-Harmonix
Superior medium-Mu Twin Triode for use in preamplifier and driver circuits. Standard replacement for all circuits requiring 12AU7/ECC82 types.
Starting at $12.95
T-7027A-JJ Vacuum Tube - 7027A, JJ Electronics
The JJ Electronic 7027A offers the same reliability and tone as the JJ 6L6GC but with the correct pinout for vintage amplifiers that use 7027 tubes like older Ampegs. At 30W, this tube delivers plenty of headroom. The highs are clear and responsive with warm mids and tight solid lows. Known for their reliability and articulation, the JJ 7027A is a great option guitar amplifiers and Hi-Fi stereo equipment.
Starting at $21.95
T-12AY7-EH Vacuum Tube - 12AY7 / 6072A, Electro-Harmonix
Electro-Harmonix 12AY7/6072 Twin triode preamplifier tube used in Fender Tweed amplifiers.
$16.75
T-6L6WXT+SOVT Vacuum Tube - 6L6WXT+, Sovtek
Higher in gain than the 5881WXT, with full base.
Sovtek is proud to announce the release of their new 6L6WXT+ vacuum tube. Modelled after the vintage RCA 6L6GC "blackplate," the Sovtek 6L6WXT+ features larger plate dimensions and improved grid structure for increased power handling capabilities. The 6L6WXT+ also features mica spacers with metal springs to eliminate tube rattle and microphonics. The Sovtek 6L6WXT+ yields a 20% higher output than the Sovtek 5881WXT and offers superior tone and overall performance to any 6L6 or KT66.
Starting at $24.95
T-7025WA-TAD Vacuum Tube - 7025-WA, Tube Amp Doctor, High-Grade, Premium Selected
The TAD 7025 WA delivers full gain with smooth top end. No microphonic issues even with the most sensitive preamps. The 7025 WA supports a fat midrange and creates a bold tone with lots of overtones. Played clean the TAD 7025 WA delivers a warm liquid tone which is very responsive to dynamic playing. Overdriven the 7025 WA provides lots of sustain with well defined mid-range punch.
$22.95
T-5Y3GT-SOVT Vacuum Tube - 5Y3GT, Sovtek
Octal rectifier tube (Max DC output current = 125 mA) An indirectly heated diode intended for rectification of commercial-frequency alternating current. It has a 140 mA maximum output and filament voltage of 5 V and a filament current of 2 A ± 0.2 mA.
$17.50
T-6550WE-SOVT Vacuum Tube - 6550WE, Sovtek
The Sovtek 6550WE was designed to be the finest 6550 ever produced. Thicker plates, improved heat dissipation, higher transconductance, and increased linearity are just some of the inherent aspects of the new Sovtek super 6550s. The resulting performance advantages include 5% higher output power, increased reliability, greater headroom, and superior tone. The 6550WE features a metal-ringed base for increased power-handling capabilities.
Starting at $39.95
T-5U4GB-EH Vacuum Tube - 5U4GB, Electro-Harmonix
Superior directly heated rectifier Diode. Replacement for all 5U4 types, including NOS-style "big bottle" tubes.
$15.50
T-6AU6A_EF94 Vacuum Tube - 6AU6A / EF94, Pentode, Sharp Cut-Off
Miniature sharp cutoff pentode primarily designed for use as a high-gain radio-frequency or intermediate-frequency amplifier. Its low grid-plate capacitance and high transconductance make it especially suited for high-frequency wide-band applications
$7.90
T-7025-HG-TAD Vacuum Tube - 7025, Tube Amp Doctor, High Grade
Warm, clean tone with creamy overdrive! PREMIUM selected quality for the most demanding amp stages. This tube works greatly for warm clean tones and creamy overdrive. We recommend this tube for the 1st gain stage and as input tube. It upgrades 12AX7A and ECC83 tubes and replaces E83CC tubes. The HIGHGRADE Selection is the tip-of-the-top quality at the lowest noise (microphony, hum, hiss) level. Typically only 0.5-2% out of the whole production of this tube meet the HIGHGRADE requirements.
$33.12
T-12BA6_HF93 Vacuum Tube - 12BA6 / HF93, Pentode, Remote Cut-Off
Pentode amplifier having a remote control grid characteristic and utilizing the miniature construction. As a RF amplifier, it is characterized by high transconductance and low grid-plate capacitance.
$8.90
T-12BE6_HK90 Vacuum Tube - 12BE6 / HK90, Heptode
Miniature pentagrid converter designed to perform simultaneously the combined functions of the mixer and oscillator in superheterodyne receivers. The tube is suitable for use in the standard broadcast and FM bands.
$7.90
T-35W4 Vacuum Tube - 35W4, Rectifier, Half Wave
Miniature half-wave rectifier for use in line-operated equipment having series-connected heaters. The heater is tapped to permit operation of a panel lamp.
$7.90
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-5AR4-TUNG Vacuum Tube - 5AR4, Tung-Sol Reissue
Tung Sol 5AR4 rectifier tube. Made in Russia. Premium directly heated heavy duty rectifier Diode. Helps extend the life of the other valves in the amplifier by allowing them to heat up before plate voltage is applied. Tung-Sol tubes reflect the best in vintage construction with unsurpassed tone and reliability.
  • Low internal voltage drop & controlled heater warm up time
  • Excellent choice for both Hifi and instrument amplification
  • Replacement/upgrade for all 5AR4/GZ34 types
$34.85
T-12BH7-A-JJ Vacuum Tube - 12BH7-A, JJ Electronics
The JJ Electronic 12BH7-A is a faithful reproduction of the original tube. Its rugged construction offers high reliability. The JJ 12BH7-A can be used as a replacement for any 12BH7 tube.
$16.95
T-6AQ5A_6HG5 Vacuum Tube - 6AQ5A / 6HG5, Tetrode, Beam Power
Miniature beam-power pentode designed for use in the audio-frequency power output stage of television and radio receivers. It may also be used as a triode-connected vertical deflection amplifier in television receivers.
$9.90
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-6V6GT-CHINA Vacuum Tube - 6V6GT, Chinese
Chinese 6V6GT Available in Singles, Matched Pairs or Matched Quads - please select from list.
Starting at $13.02
T-5751-PS-TAD Vacuum Tube - 5751, Tube Amp Doctor, Premium Selected
Low-noise Tube for Best Clean Tone! The TAD Selected 5751 is Tube Amp Doctor's first choice for noticeably improved clarity, smoothness, and a true vintage tone character for most guitar amps!
$21.15
T-12AX7WA-SOVT Vacuum Tube - 12AX7WA, Sovtek
9 pin miniature preamp tube (Amplification Factor = 100). This Russian tube has strong lows and bright highs. Its lows demand attention when playing full bar chords. In overdrive, it offers a lot of crunchy fizz.
$13.75
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