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.
Electro-Harmonix 6CA7 Vacuum Tube Big bottle beam-tetrode version of EL34. Perfect EL34 replacement for Musicman amplifiers.
Starting at $24.85
Tung Sol 7591A beam-power tube. Made in Russia.
Starting at $31.95
Super Premium power pentode, highest quality in current production. Perfect for Vox AC30, from soft overdrive and organic sustain to great harmonic crunch. Used in many vintage HiFi applications.
- Unique single halo type getter & plate coating
- N709/6BQ5 equivalent
Starting at $26.45
Miniature, duplex-diode, high-mu triode designed for use as a combined detector, amplifier, and automatic-volume-control tube
$3.90
Pentagrid converter designed to minimize frequency drift. They are intended for service as combined oscillators and mixers in AC, storage battery, and AC/DC operated superheterodynes.
$8.90
Sharp-cutoff pentode of the 9-pin miniature type intended for use as an audio amplifier in applications requiring reduced microphonics, leakage noise, and hum.
$12.90
Metal duplex-diode high-mu triode. It is intended primarily for use as a combined detector, amplifier, and automatic-volume-control tube in radio receivers.
$6.90
In the ECC823, Section 1 of the tube (pins 6, 7, and 8) is the low gain 12AU7/ECC82 spec (gain factor 17) and Section 2 (pins 1, 2, and 3) is the high gain 12AX7/ECC83 spec (gain factor 100).
$14.95
Mullard 12AT7 / ECC81 dual triode preamp tube. Made in Russia.
$22.50
Pentode amplifier designed for application in power output stages of receivers
$12.95
Miniature remote-cutoff pentode designed for use as a radio-frequency or intermediate frequency amplifier in compact, battery-operated equipment.
$4.90
The vintage made in England Mullard ECC83 has been accurately recreated in the Tube Amp Doctor 7025 S. This highly sought after tube is regarded by many as the best dual triode to have ever been created for audio use. TAD offers a reliable and affordable way to experience the sound of this legendary tube.
The 7025 S is notable for its rich and complex harmonics. The warmth in the midrange of this tube stands out among similar preamp tubes. The TAD 7025 has nice round clean tones as well as a creamy yet articulate overdrive. Its rugged mechanical construction with extra thick mica spacers along with TAD’s premium selection process ensures a highly reliable preamp tube. Tube Amp Doctor especially recommends the 7025 S for use in British and British style amplifiers.
The Tube Amp Doctor 7025 works in any 7025, 12AX7, or ECC83 position.
The 7025 S is notable for its rich and complex harmonics. The warmth in the midrange of this tube stands out among similar preamp tubes. The TAD 7025 has nice round clean tones as well as a creamy yet articulate overdrive. Its rugged mechanical construction with extra thick mica spacers along with TAD’s premium selection process ensures a highly reliable preamp tube. Tube Amp Doctor especially recommends the 7025 S for use in British and British style amplifiers.
The Tube Amp Doctor 7025 works in any 7025, 12AX7, or ECC83 position.
$32.40
The T-12SK7 is the same as the 6SK7 except for heater ratings.
$6.90
Triode-heptode for use in F.M., AM/FM, A.M, and television receivers.
$8.90
Blue glass envelope. The JJ Electronic E34L adds more power to a standard EL34 due to its higher grid voltage rating. This increase gives the tube more headroom and a tighter response on the low end. The wide frequency response of this tube offers excellent harmonics that work in a variety of genres ranging from the cleanest cleans to rich and aggressive breakup.
Starting at $18.95
Super Premium power beam tetrode & exact copy of the original clear glass KT66, used in the early Marshall amps which created Eric Clapton’s "Bluesbreaker" Tone.” Full sound with improved bass response and shimmering top-end.
- Originally a British equivalent to 6L6 and a mainstay of the British hi-fi industry
- Used in 50s - 60s hi-fi favorites such as the Heath W-5M and many Leak amplifiers
Starting at $41.95
The Svetlana 12AX7 is a premium 12AX7 tube from Russia. Known for their smooth drive and clarity, these tubes are praised by both guitar players and HiFi users alike. The Svetlana 12AX7 is compatible in any 12AX7 or ECC83 position. “Svetlana tubes are quite simply the absolute best. We design and manufacture our tubes, engineered for demanding high fidelity, reliability and overall warmth. Be sure to insist on genuine Svetlana vacuum tubes the next time you retube -- you'll be getting the absolute best possible tubes for any demanding application.” -Svetlana
$16.95
Beam pentode primarily designed for use in the audio frequency power output stage of radio receivers. Features include high power sensitivity and high efficiency at relatively low plate and screen voltages.
$8.90
Metal sharp-cutoff pentode designed for use as a biased detector or high-gain amplifier.
$6.90
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.
$22.95
Philips ECG, Triode, Medium-MU
$4.95
Save 50%
Originally: $9.90
Miniature power amplifier pentode designed for use in the power output stage of compact, battery operated equipment. It is particularly useful in three-way portable receivers which employ 90-volta batteries.
$8.90