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 - 5Y3GT, Rectifier, Full Wave
Filamentary twin-diode designed for full-wave rectifier operation in power supplies that have D-C output current requirements up to approximately 125 milliamperes.
$29.45
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.
$30.05
Vacuum Tube - 5Y3GT, Tube Amp Doctor, Premium Selected, Rectifier
The Tube Amp Doctor 5Y3GT / 6087 is a small bottle rectifier designed to perform closely to the original rectifier tubes used in many 1950s tweed amplifiers. This rectifier offers high reliability due to its rugged construction and the Tube Amp Doctor Premium Selection process. The TAD 5Y3GT is a great tube for vintage style sag compression.
$27.95
Vacuum Tube - 5Y3 S, JJ Electronics, Rectifier
The JJ Electronic 5Y3S is a ruggedly built octal rectifier tube with a directly heated cathode. This tube’s solid construction and thick glass envelope offer high reliability. The JJ 5Y3S will work in any 5Y3 position.
$22.65
Vacuum Tube - 5Y4G, Rectifier, Full Wave
The 5Y4G is designed for use as a power rectifier in AC operated receivers.
$24.90
$7.85
Out of Stock
Vacuum Tube - 5Y4GT, Rectifier, Full Wave
Full-wave vacuum rectifier. The 5Y4GT is the same as the 5Y4GA except for mechanical design.
$16.90
Vacuum Tube - 5Z3, Rectifier, Full Wave
The 5Z3 is designed for service as a power rectifier in AC operated receivers which require high currents
$24.90
Vacuum Tube - 5Z4, Rectifier, Full Wave
The 5Z4 is designed for service as a power rectifier in AC operated receivers.
$8.90
Vacuum Tube - 6A3, Triode, Power Amplifier
Filament type triode power amplifier designed for service in the output stage of audio amplifiers where high output and low harmonic distortion are desired. Its ratings and characteristics are similar to those of the 2A3 and 6B4G.
$59.90
Vacuum Tube - 6A3, Sovtek
Sovtek 6A3 power triode tube. Made in Russia.
Starting at $83.17
Save 15%
Originally: $97.85
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
Vacuum Tube - 6A6, Dual Triode
Twin triode designed for service as a class B power amplifier and as a class A driver
$6.90
Vacuum Tube - 6A7, Pentagrid Converter
Pentagrid converter designed for service as an oscillator and mixer in AC operated and ac-operated receivers. With the exception of heater ratings, they have identical ratings and electrical characteristics.
$22.90
$29.90
Vacuum Tube - 6A8G, Pentagrid Converter
Pentagrid converter designed for service as a combined oscillator and mixer in AC, storage battery, and AC-DC operated receivers
$49.90
Vacuum Tube - 6A8GT, Pentagrid Converter
Pentagrid converter designed for service as a combined oscillator and mixer in AC, storage battery, and AC-DC operated receivers
$29.90
Vacuum Tube - 6AB4 / EC92, Triode
Miniature triode designed for use as a grounded-grid radio-frequency amplifier, frequency converter, or oscillator at frequencies below approximately 300 megacycles.
$5.90
Vacuum Tube - 6AB5 / 6N5, Indicator, Electron Ray
Triode using the miniature construction. Its low capacitance and high ratio of plate current to transconductance allow use as a high frequency oscillator and mixer at frequencies below ~300 mc or as grounded grid radio frequency amplifier.
$24.90
Vacuum Tube - 6AC5G, Triode, Power Amplifier
High-mu power output triode designed for service in dynamic coupled circuits using a type 76, 6P5GT/G or 6J5GT/G as a driver. Two 6AC5Gs may be used as a zero bias class B amplifier.
$27.55
Vacuum Tube - 6AC5GT, Triode, Power Amplifier
High-mu power output triode designed for service in dynamic coupled circuits using a type 76, 6P5GT/G or 6J5GT/G as a driver. Two 6AC5GTs may be used as a zero bias class B amplifier.
$12.90
Vacuum Tube - 6AC10, Triple Triode
Compactron containing three high-mu triodes. It is designed for use primarily as a color-difference amplifier in color television receivers.
$7.90
Vacuum Tube - 6AD7G, Pentode
Triode-power amplifier pentode
$7.90
Vacuum Tube - 6AG7 / 6AK7, Pentode, Power
Metal, power-amplifier pentode primarily designed for use in the output stage of video amplifiers. The tube is capable of operating at high plate current levels and exhibits high transconductance and high power sensitivity.
$7.90