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 - 6386, Triode, Dual, Remote Cut-Off
Miniature medium-mu twin triode in which each section exhibits a remote-cutoff characteristic. It is designed primarily for use as a cascode radio-frequency amplifier, intermediate-frequency amplifier, or mixer
$249.90
Vacuum Tube - 8950, Pentode, Power Amplifier
Compactron beam power pentode primarily designed for RF power output applications. Features of the 8950 are dual cathode and grid connections for lower lead inductance, and a 13 volt heater.
$199.90
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 $192.30
Vacuum Tube - 300B, Electro-Harmonix, Gold Pin
Electro-Harmonix 300B power triode tube with gold pins. Made in Russia. Premium version of the 300B EH with gold grid wire for increased bias stability as well as top of the line sonics and performance.
Starting at $192.17
Vacuum Tube - 6386-LGP, JJ Electronics, Gold Pin
The impossible search for tubes to use in your high end studio equipment is over. JJ Electronic has spared no effort in creating a tube that meets the quality demands of working studios with the JJ 6386-LGP. This solidly constructed tube features gold pins.
$183.95
Vacuum Tube - 2A3, Triode
Filament type triode power amplifier. It is designed for service in the output stage of audio amplifiers where high output and low harmonic distortion is desired.
$179.90
Vacuum Tube - 2A3, JJ Electronics
The JJ Electronic 2A3 features a robust construction in a beautiful thick glass envelope. The JJ 2A3 offers 40 Watts of plate dissipation which far surpasses the headroom of other 2A3 tubes by 25 Watts. The single plate build and increased ratings give this tube the highest reliability. The JJ 2A3 has amazing detail and clarity with excellent separation.
Starting at $175.95
Vacuum Tube - 300B, JJ Electronics
This triode has a full 40 Watts of power. The robust build of the JJ 300B offers high reliability in a classy package. Each tube comes with a factory certification with sets dual matched for anode current and gain. The JJ 300B has a balanced and detailed sound with a wide frequency response.
Starting at $175.95
Vacuum Tube - 417A, Western Electric, Triode
9-pin miniature triode with an indirectly heated cathode. It is intended primarily for grounded-grid operation in the input stage of broad band amplifiers.
$174.90
Vacuum Tube - 45, Triode
Filament type triode power amplifier designed for service in the output stage of audio amplifiers where high output and low harmonic distortion are desired.
$139.90
Vacuum Tube - 8417, Beam Power Amplifier
Beam-power pentode intended for service in high power, high-fidelity audio equipments and is capable of 100 watts output in push-pull circuitry. It also finds application as a regulator tube.
$129.90
$124.95
Vacuum Tube - 2A3, Electro-Harmonix, Gold Pin
Electro-Harmonix 2A3 power triode tube with gold pins. Made in Russia. Gold plated grid.
Starting at $106.60
Partially Out of Stock
Vacuum Tube - 7308 / E188CC, Dual Triode
Special quality double triode designed for use as cascode amplifier, cathode follower, etc. in RF and AF circuits.
$99.90
Vacuum Tube - 1L6, Heptode
Miniature type pentagrid converter designed for use in low drain battery operated receivers.
$99.90
Vacuum Tube - 6A5G, Triode, Power Amplifier
6A5G is a heater type power amplifier triode designed for the same service as types 6A3 and 6B4G. The tube is equipped with an octal base. This tube is quite free from hum so that no potentiometer is required for hum balance.
$99.90
Out of Stock
Vacuum Tube - 7591A, Beam Power Amplifier
Glass octal beam power pentode designed for use as an audio frequency power output tube. The tube has a high power sensitivity and high efficiency and is especially designed for applications where high power output is required.
$99.90
Vacuum Tube - 7581A / KT66, Beam Power Amplifier
Beam-power pentode primarily designed for use in audio-frequency power-amplifier applications. The 7581A is unilaterally interchangeable with the 7581 and the 6L6GC.
$99.90
Vacuum Tube - 6C10, Triple Triode
Contains three high-mu triodes with separate pin connections for all three cathodes, grids, and plates in a compact T-9 glass envelope with the novel 12 pin base.
$99.90
Out of Stock
Vacuum Tube - 6CD7 / EM34, Indicator, Tuning
Electron-ray tuning indicator with triode unit and two indicating sectors of different sensitivity.
$99.90
Vacuum Tube - 6A3, Sovtek
Sovtek 6A3 power triode tube. Made in Russia.
Starting at $96.25
Vacuum Tube - 20LF6, Pentode, Beam
Beam power pentode designed for use in horizontal deflection circuits of color television receivers.
$90.40
Vacuum Tube - KT88-STR, Tube Amp Doctor, Premium Selected
The Tube Amp Doctor KT88-STR is build just like the original tube with its thick curved glass envelope and metal base. The similarities don’t stop with its attractive appearance. This KT88 offers a lively and dynamic tone that is ideal in both HiFi audio amplifiers and high wattage guitar / bass amps. The sound of the TAD KT88 is pleasantly warm at all frequencies with detailed mids, articulate and nuanced highs, and harmonically rich and natural lows. The linear response is excellent. The TAD KT88-STR is matched for both plate current and transconductance and passes all of the tests of the TAD Premium Selection process.
Starting at $89.95
Vacuum Tube - 50A1 / D5TF30, Ballast Tube
Gas-filled ballast tube designed to maintain a relatively constant current over a specified operating range.
$89.90