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 - 7025 S, Tube Amp Doctor, Premium Selected
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.
Vacuum Tube - 6B5, Dual Triode
Consists of two dynamically coupled triodes and is designed for service in the power output stage of AC and storage battery operated receivers. All necessary biases are supplied internally
Vacuum Tube - 6SQ7GT, Diode, Dual Triode
Duplex-diode high-mu triode intended primarily for use as a combined detector, amplifier, and automatic-volume-control tube in radio receivers. The triode section incorporates a high amplification factor
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.
Vacuum Tube - 6J7G, Pentode, Sharp Cut-Off
Sharp cut-off general purpose amplifier. With the exception of heater and capacitance ratings, the electrical characteristics are similar to those of the 6C6.
Vacuum Tube - 12BH7, Electro-Harmonix
Superior medium-mu twin triode driver tube for hifi use. 3.5 watts dissipation per plate. New design of excellent quality
Starting at $17.85
Vacuum Tube - 5931 / 5U4WG, Rectifier, Full Wave
Rugged full-wave filamentary type rectifier designed for use in applications requiring resistance to shock or vibration.
Out of Stock
Vacuum Tube - 83V, Rectifier, Full Wave
Power rectifier with low internal voltage drops. It is designed for service in AC operated receivers that require high currents
Vacuum Tube - 1S5 / DAF91, Diode, Sharp Cut-Off Pentode
Miniature tube containing a diode and a sharp-cutoff pentode. It is designed for use as a combined detector and audio-frequency voltage amplifier in compact battery-powered equipment.
Vacuum Tube - 6AX5GT, Rectifier, Full Wave
Full-wave rectifier of the heater-cathode type intended for use in AC operated and automobile receivers. Because of its heater-cathode construction it has the same heating time as that of other heater-cathode types in the receiver.
Vacuum Tube - 6922, Genalex Gold Lion, Gold Pin
Genalex Gold Lion E88CC/6922 dual triode preamp tube with gold pins. Made in Russia. The Genalex Gold Lion E88CC/6922 is a premium grade selected small signal twin-triode that is a suitable replacement for all 6DJ8, ECC88, 6922, E88CC, and 7308 types. This tube features gold plated pins and is manufactured to extremely tight specifications, making it the highest quality current production E88CC/6922 available.
Vacuum Tube - 5Y3G, Rectifier, Full Wave
Full-wave vacuum rectifier.
Out of Stock
Vacuum Tube - 6KD6, Beam Power Amplifier
Compactron beam-power pentode primarily designed for use as the horizontal-deflection amplifier in color television receivers. It is characterized by having a very low knee with a very high peak current of over an ampere.
Vacuum Tube - 6DQ5, Pentode, Beam Power
Beam power tube for use as a horizontal-deflection amplifier tube in color and black-and-white television receivers.
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.
Vacuum Tube - 12SQ7, Diode, Dual, Triode
Combines two diode units and a high-mu triode in a single envelope. Each section uses a common cathode. It is intended for service as a combined detector, AVC source, and high gain audio amplifier.
Vacuum Tube - 6U7G, Pentode, Remote Cut-Off
Triple grid remote cut-off amplifier. It is suitable for use with AVC in RF and IF amplifiers and minimizes cross modulation. Its electrical characteristics are similar to those of the 6D6.
Vacuum Tube - 12J7GT, Pentode, Sharp Cut-Off
Sharp cut-off general purpose amplifier. With the exception of heater and capacitance ratings, the electrical characteristics are similar to those of the 6C6.
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
Vacuum Tube - 6L6G, Tung-Sol
Tung Sol 6L6G power pentode tube. Made in Russia. Large bottle type for the look and sound of 6L6 tubes used during the golden age of hi-fi in the 1940s and early 1950s. Uprated to 6L6GC specs for improved performance and reliability.
  • Extremely musical and accurate sound stage
  • Extra thick & heavy “Big Bulb” for vintage look and feel
  • 5881 / KT66 equivalent
Starting at $51.35
Vacuum Tube - 3V4 / DL94, Pentode, Power
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.
Vacuum Tube - 6DC8 / 6AD8 / EBF89, Dual Diode, Pentode
Double diode remote cut-off pentode for use as an R.F. or I.F. amplifier.
Vacuum Tube - 47, Pentode, Power Amplifier, ST Glass
Filament type output power pentode.
Vacuum Tube - 7B6, Dual Diode, Triode
Combined high-mu triode and double diode using the 8 pin lock-in construction. It is designed for use as a diode detector, AVC rectifier, and an impedance or resistance coupled amplifier.