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.
Vacuum Tube - 6Y6GT, Beam Power Amplifier
Beam power pentode primarily intended for use as an audio frequency power amplifier. It is particularly useful in applications where the available supply voltage is relatively low.
$5.90
Vacuum Tube - KT88, JJ Electronics, Blue Glass
Blue glass envelope. 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.
Starting at $69.95
Partially Out of Stock
Vacuum Tube - 0A2 / 150C2, Voltage Regulator, Diode, Glow-Discharge
0A2 or 150C2 - Voltage Regulator, Diode, miniature glow-discharge type.
$6.90
Vacuum Tube - 12AD6 / 12AG6, Heptode
Miniature heptode primarily intended to perform the combined functions of mixer and oscillator in automobile radio receivers. Specially designed to operate with plate and screen voltages supplied directly from a 12-volt storage battery.
$3.90
Vacuum Tube - 12AU7 / 6189, Tung-Sol Reissue
Tung Sol 12AU7W / 6189 dual triode preamp tube. Made in Russia.
$26.80
Vacuum Tube - 12AX7-A, Triode, Dual, High MU
Miniature high-mu twin triode each section of which has an individual cathode connection - especially suited for use in resistance-coupled voltage amplifiers, phase inverters, multivibrators, and industrial-control circuits.
$59.95
Vacuum Tube - 12SA7, Heptode
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
Vacuum Tube - 1626, Triode, Power Amplifier
Transmitting triode for oscillator applications requiring unusually stable characteristics.
$14.90
Vacuum Tube - KT66, Tube Amp Doctor, Premium Selected
The Tube Amp Doctor KT-66 is an incredible remake of the classic British tube. With its large glass envelope contoured by smooth curves tapering into a rounded brown base, the TAD KT-66 not only looks like the original, it performs like the original. This KT66 offers plenty of headroom for a thick full bodied sound with smooth yet articulate highs. The KT-66 is famously used in vintage British plexi amps and makes a great replacement for that style of amplifier and many others. The TAD KT66 is matched for both plate current and transconductance and passes all of the tests of the TAD Premium Selection process. The TAD KT-66 can be used in any KT-66 position as well as 6L6GC and 5881 amps that can supply the required 1.27A for the heater.
Starting at $56.95
Vacuum Tube - 6DE7, Triode, Dissimilar Double
Miniature double triode in the 9 pin miniature construction. Section #1 is intended for use as a vertical deflection oscillator having medium mu and section 2 is intended for use as a vertical reflection amplifier with low mu.
$6.95
Vacuum Tube - 7591A, Tung-Sol Reissue
Tung Sol 7591A beam-power tube. Made in Russia.
Starting at $51.25
Vacuum Tube - 1U4, Pentode
Miniature, filamentary, sharp-cutoff pentode intended for radio frequency or intermediate frequency amplifier use in battery-operated receivers.
$6.90
Vacuum Tube - 6K7, Pentode, Remote Cut-Off
Variable mu pentode amplifier in the octal metal (glass) construction. It is suitable for use with AVC in RF and IF amplifiers and minimizes cross modulation.
$6.90
Vacuum Tube - 6SN7GT, Classic Series, Psvane
The Psvane 6SN7GT is a high quality, medium gain, dual triode with an octal base. The Psvane 6SN7GT is an excellent preamp tube with a classic look and sound. The Psvane 6SN7GT works great in any 6SN7 position. The Psvane Classic Series is focused on the reproduction of popular vacuum tubes found in classic audio equipment. When designing the Classic Series, Psvane collected the most sought-after NOS tubes and analyzed each element of their construction, incorporating the most effective manufacturing techniques to produce stable tubes with excellent sound. Whether used in guitar amplifiers or hifi stereo systems, the Psvane Classic Series vacuum tubes excel in all applications. Psvane has been producing high quality vacuum tubes since 2011. The Psvane team originally formed in Shuguang’s high-end tube division but eventually split off to form their own brand.
$24.45
Vacuum Tube - 12AZ7A, Triode, Dual
9-pin miniature type high-mu twin triode, with heater having controlled warm-up time.
$8.90
Vacuum Tube - 6CW5 / EL86, Pentode, Power Amplifier
The 6CW5 is an A.F. output pentode in the 9 pin miniature construction. It is intended for use in single-ended push-pull output stages.
$6.90
Vacuum Tube - 6EJ7 / EF184, Pentode, Sharp Cut-Off
The 6EJ7 is a high transconductance sharp-cutoff pentode in the 9 pin miniature construction.
$4.90
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 $90.85
Partially Out of Stock
Vacuum Tube - 12BV7 / 12BY7A, Pentode
Miniature power pentode designed primarily for use as the video output amplifier in television receivers. Like the 12BY7, it features high transconductance, high power sensitivity, and low interelectrode capacitances.
$13.90
Vacuum Tube - 1U5, Diode, Sharp Cut-Off Pentode
Miniature diode sharp-cutoff pentode designed for use as a combined detector, audio-frequency amplifier, and automatic-volume-control tube in compact, battery-operated receivers.
$6.90
Vacuum Tube - 5749 / 6BA6W, Pentode, Remote Cut-Off
Miniature remote-cutoff pentode intended for use as a high-gain radio frequency or intermediate-frequency amplifier. Its remote-cutoff characteristic makes it suitable for use in circuits to which it is desired to apply automatic-gain-control.
$4.90
Vacuum Tube - 3Q4, Pentode, Power
The type 3Q4 is a miniature type power-amplifier pentode designed for use in the output stage of battery operated equipment.
$2.95
Save 50%
Originally: $5.90
Vacuum Tube - 12AB5, Tetrode, Beam Power
Beam power tube of the 9-pin miniature type designed for use as the output amplifier in automobile radio receivers operating from a 12-volt storage battery. The 12AB5 can provide high power output.
$5.90
Vacuum Tube - 12AX7WB, Sovtek
Sovtek 12AX7WB dual triode.
$31.45