# 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 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 - 1A5GT, Pentode, Power Amplifier
Filament type power-amplifier pentode designed for use in the output stage of low drain battery operated equipment. The 1A5GT may be operated singly or in push-pull combination.
$4.90 Vacuum Tube - 1Q5GT, Tetrode, Amplifier Low voltage, low current drain battery type beam power output tube. It is designed for services with 90 volts of "B" battery and a single dry cell "A" battery.$4.90
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 $129.95 Vacuum Tube - 2A3, Electro-Harmonix, Gold Pin Electro-Harmonix 2A3 power triode tube with gold pins. Made in Russia. Gold plated grid. Starting at$70.50
Vacuum Tube - 2A3, RCA, Triode, Power Amplifier
Three-electrode, high-vacuum type of power amplifier tube for use in the power-output stage of a-c operated receivers. The exceptionally large power-handling ability of the 2A3 is the result of its design features.
$129.30 Out of Stock Vacuum Tube - 2A3, Sovtek Sovtek 2A3 power triode tube. Made in Russia. Super 2A3. Starting at$56.50
Vacuum Tube - 2A3, Triode, Power Amplifier, Single Plate
Triode, Power Amplifier, Single Plate
Starting at $263.85 Out of Stock Vacuum Tube - 2A5, Pentode, Power Amplifier Type 2A5 is a pentode amplifier designed for application in power output stages of receivers. With the exception of heater ratings, their electrical characteristics are identical.$21.90
Vacuum Tube - 3A4, Pentode, Power Amplifier
The 3A4 is designed for use in compact, lightweight, portable equipment. The relatively large filament employed in the 3A4 enables it to supply the high peak currents required in RF power applications.
$5.90 Vacuum Tube - 4-125A / 4D21, Tetrode, Power Amplifier The 4D21 / 4-125A is a four-electrode tube designed for use as a power amplifier and oscillator. The anode is capable of dissipating 125 watts, and cooling is accomplished by radiation.$139.90
Vacuum Tube - 5V6GT, Tetrode, Beam Power
Beam power amplifier designed for service in the output stage of 600mA series heater operated TV receivers. It has high power sensitivity and high power output with comparatively low supply voltage.
$9.90 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
Out of Stock
Vacuum Tube - 6A3, Sovtek
Sovtek 6A3 power triode tube. Made in Russia.
Starting at $65.50 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 - 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 Out of Stock 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 - 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 Vacuum Tube - 6AQ5A / 6HG5, Tetrode, Beam Power Miniature beam-power pentode designed for use in the audio-frequency power output stage of television and radio receivers. It may also be used as a triode-connected vertical deflection amplifier in television receivers.$9.90
Vacuum Tube - 6AR5, Pentode, Power
Pentode power amplifier using the miniature construction. It is intended for service in AC and storage battery operated receivers where moderate power sensitivity and power output is desired.
$9.90 Vacuum Tube - 6B4G, Triode, Power Amplifier Glass triode power amplifier tube designed particularly for service in the power output stages of storage battery operated or a-c receivers$52.65
Vacuum Tube - 6B4G, Sovtek
Sovtek 6B4G power triode tube. Made in Russia.
Sovtek is proud to announce the release of the Sovtek 6B4G vacuum tube. Unlike traditional 6B4G's, which consist of dual triodes connected in parallel inside the tube's envelope, the Sovtek 6B4G utilizes a single triode design with a Directly Heated cathode element. This updated design eliminates differential resistance loading common to other 6B4G's, yielding a much more reliable tube. In addition, the Sovtek 6B4G has a lower inter-electrode capacitance, offering a wider frequency response with high sound detail.
Starting at $65.95 Partially Out of Stock Vacuum Tube - 6BG6G-GA, Beam Power Amplifier Beam-power pentode designed primarily for use as the horizontal deflection amplifier in television receivers. Electrically and physically, the 6BG6GA is a replacement for the 6BG6G$11.90
Vacuum Tube - 6BM8, Electro-Harmonix
Electro-Harmonix 6BM8 triode pentode tube. Made in Russia.
Contains one preamp triode and one power pentode in a 9 pin miniature package.
$21.95 Vacuum Tube - 6BM8 / ECL82, Triode, Pentode, Power The 6BM8 contains both a power pentode and triode. It has a pentode plate dissipation rating of 7 watts with convection cooling.$29.95
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