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.

Tube Amp Doctor (TAD)

Mullard Reissue

T-12AX7-PS-TAD Vacuum Tube - 12AX7A-C / ECC83, Tube Amp Doctor, Premium Selected
9 pin miniature preamp tube (Amplification Factor =100). Very good gain, tight deep bass, fat mids and silky top end with overall definition and brightness. Selected with balanced systems and recommended for guitar amps to improve overall response.
$16.95
T-6L6GC-TAD-X Vacuum Tube - 6L6GC, Tube Amp Doctor
Octal power tube (Max Plate Watts = 30W) TAD 6L6GC-STR RCA-Style black-plate. TAD has the remakes of the all time favorite 6L6 classics by RCA and GE. The TAD 6L6GC-STR is your perfect choice if you are up for the sound of the rock legends.
Starting at $25.65
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-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.
$19.65
T-6V6GT-TAD Vacuum Tube - 6V6GT-STR, Tube Amp Doctor
This all new TAD 6V6GT-STR combines the exceptionally sweet characteristics of the NOS 6V6GT by RCA or of the GE 6V6GTY. It is a heavy duty 6V6GT tube, which can handle a higher plate current. Even when pushed into saturation there are no harsh upper mids, which is frequently the case with other 6V6s. Sweet full-bodied tone with silky highs.
Starting at $21.95
T-5AR4-STR-TAD Vacuum Tube - 5AR4 STR, Tube Amp Doctor
Tube Amp Doctor 5AR4 Rectifier, Premium Selected. A faithful reproduction of the Mullard/VALVO GZ34. Pure power and the typical sag is the distinguishing characteristic of the most popular guitar amps of the 1960s guitar heroes till today.
$22.95
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-12AX7-MUL Vacuum Tube - 12AX7/ECC83, Mullard, Made in Russia
Russion-made Mullard Reissue 12AX7 dual triode. Large sound stage with excellent detail. Factory selected for low noise and microphonics. Great for hi-fi amps.
$19.95
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.
$16.75
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-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 $23.25
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-6L6WGC-TAD-X Vacuum Tube - 6L6WGC, Tube Amp Doctor
The Classic Sound of the 1950s and 60s - Excellent Tone, Maximum Lifetime! The perfect choice for vintage tweed and blackface amps such as the 1960 Bassman, Twin, Showman or Super Reverb. The complex midrange and sweet heights are a class of its own. The TAD 6L6WGC-STR is our recommendation for classic tone with warm cleans and rich, sweet mids when pushed. Great for fat jazz or blues tones.
Starting at $24.50
T-12BH7A-TAD Vacuum Tube - 12BH7A-STR, Tube Amp Doctor, Premium Selected
Maximum of Reliability - Outstanding Tonal Quality! The all-new TAD 12BH7A-STR combines the best sonic and mechanical performance of the NOS RCA black plate with advantages of the GE version.
$17.25
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.
$14.95
T-12AU7-MUL Vacuum Tube - 12AU7, Mullard
Mullard 12AU7 / ECC82 dual triode preamp tube. Made in Russia.
$22.75
T-12AU7A-TAD Vacuum Tube - 12AU7A / ECC82, Tube Amp Doctor, Premium Selected
The Perfect Choice for Stereo Audio Applications - Ideal as a Balanced Driver. Latest revision providing great musical performance and rich tone. This TAD 12AU7A / ECC82 has especially strong systems which are selected to provide two symmetric triodes. The perfect choice for stereo audio applications and ideal as a balanced driver.
$16.75
T-GZ34-MUL Vacuum Tube - GZ34/5AR4, Mullard
Mullard Reissue GZ34 (5AR4). Current production, made in Russia.
This is a copy of the most popular rectifier valve ever built by Mullard. It has a low internal voltage drop and a controlled heater warm up time which helps extend the life of the other valves in the amplifier by allowing them to heat up before plate voltage is applied.
$38.95
T-12AX7-CV4004-MUL Vacuum Tube - 12AX7/CV4004, Mullard
Mullard 12AX7 / CV4004 dual triode preamp tube. Made in Russa. The CV4004/12AX7 is a high gain, low noise valve with a short plate structure for reduced microphonics. Excellent for use in high gain Marshall pre-amplifier circuits where noise and microphonics can be a problem. Great for guitar amps.
$22.75
T-12AY7-PS-TAD Vacuum Tube - 12AY7, Tube Amp Doctor, Premium Selected
Tweed Up Your Amp! Vintage tone for original vintage Fender tweed amps. The original tube for all those Fender® tweed amps from the 50s. Brings back the original sound to your tweed amp.
$19.95
T-12AY7-HG-TAD Vacuum Tube - 12AY7, Tube Amp Doctor, Highgrade
High grade tube. Tweed Up Your Amp! Vintage tone for original vintage Fender tweed amps. The original tube for all those Fender® tweed amps from the 50s. Brings back the original sound to your tweed amp.
$24.95
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!
$18.95
T-12AU7A-MUL Vacuum Tube - 12AU7A, Mullard, Dual Triode
Amperex Bugle Boy brand. Miniature medium-mu twin triode intended for service in radio and television receivers or in audio amplifiers.
$99.90
Out of Stock
T-6V6GT-MUL Vacuum Tube - 6V6GT, Mullard
Mullard 6V6GT tube. Made in Russia.
This valve is built to stand the high voltages encountered in the Fender Deluxe Reverb and other guitar amplifiers that ran the valves above the published specification. The smooth and balanced frequency response also makes it suitable for hi-fi use.
Starting at $24.95
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