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 - 1N5GT / 1P5GT, Pentode, Sharp Cut-Off, RF
Filamentary type sharp cut-off pentode voltage amplifier. It is designed for service in low-drain battery-operated receivers as an RF, IF, or AF amplifier.
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Vacuum Tube - 35L6GT, Beam Power Amplifier
Beam pentode primarily designed for use in the audio frequency power output stage of radio receivers. Features include high power sensitivity and high efficiency at relatively low plate and screen voltages.
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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.
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Vacuum Tube - 6SA7, Heptode
Metal pentagrid converter. It is intended to perform the combined functions of the mixer and oscillator in superheterodyne receivers, especially those of the all-wave type. The 6SA7 is constructed to provide excellent frequency stability.
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Vacuum Tube - 6SN7GT, Sovtek, Triode, Dual, Medium MU
Sovtek 6SN7GT dual triode, medium MU. Made in Russia.
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Vacuum Tube - KT66, Genalex Gold Lion
Super Premium power beam tetrode & exact copy of the original clear glass KT66, used in the early Marshall amps which created Eric Clapton’s "Bluesbreaker" Tone.” Full sound with improved bass response and shimmering top-end.
  • Originally a British equivalent to 6L6 and a mainstay of the British hi-fi industry
  • Used in 50s - 60s hi-fi favorites such as the Heath W-5M and many Leak amplifiers
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Vacuum Tube - 1A7GT, Pentagrid Converter
Filament type pentagrid converter designed for service as a combined mixer and oscillator tube in low drain battery operated equipment.
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Vacuum Tube - 6SL7, Tung-Sol Reissue
Tung Sol 6SL7 dual triode preamp tube. Made in Russia. The best current production 6SL7 available. NOS performance and sound at a fraction of the price. Sweeten up the preamp section of that Vintage Ampeg B-15.
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Vacuum Tube - 12AT7 / ECC81, Triode, Dual, HI-MU
The 12AT7 is a miniature, high-mu, twin triode designed for use as a grounded-grid radio-frequency amplifier or as a combined oscillator and mixer at frequencies below approximately 300 megacycles.
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Vacuum Tube - 6BN4A, Triode, HF
Miniature medium-mu triode designed for as a radio-frequency amplifier in a VHF television tuner.
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Vacuum Tube - 6CS7, Triode, Dissimilar Double
Miniature double triode having dissimilar sections. Section no. 1 is intended for operations as a vertical deflection oscillator and section no. 2 as a vertical deflection amplifier.
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Vacuum Tube - 6SG7, Pentode, Semi Remote
Remote-cutoff pentode designed for use as a high-gain radio or intermediate-frequency amplifier. Features of the tube include high transconductance, low grid-plate capacitance, and a dual cathode connection
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Vacuum Tube - 6V6GT / CV-511, Genalex Gold Lion
Genalex Gold Lion 6V6GT / CV511 beam-power tube. Made in Russia.
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Vacuum Tube - 7591A, Tung-Sol Reissue
Tung Sol 7591A beam-power tube. Made in Russia.
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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.
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Vacuum Tube - 12AT7 / B739, Genalex Gold Lion, Gold Pin
Genalex Gold Lion ECC81/B739 (12AT7) dual triode preamp tube with gold pins. Made in Russia. Original Genalex Gold Lion ECC81/B739 tubes are considered the best 12AT7 types ever made. They are also among the rarest types available. They exhibit a large detailed soundstage that is characterized by an expressive midrange, deep tight bass, and a smooth extended high end. The reissue Genalex Gold Lion ECC81/B739 recreates the sound signature of the original. This tube features balanced sections and gold plated pins.
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Vacuum Tube - 12AT7 / ECC81, JJ Electronics
A good choice for phase inverters, reverb drivers, and general preamp use. This tube offers low noise, low microphonics, and warm smooth tones at a great price. Like all JJ tubes, it has a rugged construction that doesn’t compromise the sound of your amp. The JJ 12AT7 is a solid replacement for any 12AT7, ECC81, or 6201 tube. It can also be used to replace 12AX7 tubes in position 1 to reduce gain.
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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.
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Vacuum Tube - 5AR4 / GZ34 / U77, Genalex Gold Lion
Genalex Gold Lion U77 / GZ34 full-wave rectifier tube. Made in Russia.
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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.
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Vacuum Tube - 6KD8 / 6U8A, Triode, Pentode
Medium mu triode and sharp cutoff pentode in the 9 pin miniature construction. It is intended for use as a combined VHF oscillator and mixer in television receivers.
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Vacuum Tube - 6688 / E180F, Philips, Pentode, RF, Gold Pin
Special quality pentode designed for use as wide band amplifier.
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Vacuum Tube - 6SN7, Electro-Harmonix
Electro-Harmonix 6SN7 medium-mu twin triode preamp tube. Made in Russia. New low noise HiFi 6SN7.
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Vacuum Tube - 6BZ6 / 6JH6, Pentode, Semi-Remote Cut-Off
Miniature semi-remote-cutoff pentode designed primarily for use as an intermediate frequency amplifier in television receivers.
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