Vacuum Tubes

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.

High-mu twin triode designed primarily for use as an AF voltage amplifier. Featuring a special shielding arrangement to reduce hum, the tube is well suited for low-level audio amplifier service.

Tube having high efficiency and high power sensitivity for use in mobile and stationary equipment. It is rated as an af power amplifier and modulator, a linear rf power amplifier, and a Class C rf power amplifier and oscillator.

Filamentary twin diode designed for use as a full-wave rectifier in the power supply of television receivers or other equipment which has high direct-current requirements. The 5U4GB may be used a replacement for either the 5U4G or the 5U4GA.

Tung Sol 7591A beam-power tube. Made in Russia.

Tung Sol EF806 SG pentode preamp tube with gold pins. Made in Russia. Super premium EF86/6267 replacement based on the Telefunken EF806S. Super low noise and microphonics. Gold pins.

Magnoval type used as a horizontal-deflection amplifier in color television receivers.

Tung Sol 5AR4 rectifier tube. Made in Russia. Premium directly heated heavy duty rectifier Diode. Helps extend the life of the other valves in the amplifier by allowing them to heat up before plate voltage is applied. Tung-Sol tubes reflect the best in vintage construction with unsurpassed tone and reliability.

• Low internal voltage drop & controlled heater warm up time
• Excellent choice for both Hifi and instrument amplification
• Replacement/upgrade for all 5AR4/GZ34 types

The Shuguang KT88-98 vacuum tube is an octal based beam power tetrode that delivers lush harmonics and exceptional clarity for studio or stage. Renowned for its robust construction and exceptional sound quality, this KT88 tube is a staple for musicians and audiophiles alike seeking that classic tube warmth and clarity. Crafted with precision and expertise, the KT88-98 boasts a rich harmonic spectrum, delivering smooth highs, tight lows, and a lush midrange that breathes life into your music. Whether you're a seasoned professional or an avid enthusiast, these tubes ensure your sound reaches its fullest potential, with unparalleled reliability and consistency. Engineered for durability and longevity, the Shuguang KT88-98 tube is built to withstand the rigors of constant use, making it ideal for both studio recording and live performances.

Beam pentode designed primarily for use in audio-frequency power amplifier applications where relatively large power outputs are required.

Compactron device containing two high-mu triodes and one medium-mu triode. Features of the tube include separate pin connections for all three cathodes, grids, and plates; an internal shield between sections 1 and 3.

Sovtek 6H30PI dual triode preamp tube. Made in Russia.
The 6H30 is a medium-mu dual triode with a very high-perveance cathode. The low plate resistance, combined with a superior linearity, and a true 4 watt per plate dissipation, make for a high performance voltage amp or driver.

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.

The Psvane KT88 is a high quality, high power, beam tetrode with an octal base. The KT88C is notable for its warmth and clarity across the entire audio spectrum. The Psvane Classic Series is focused on the reproduction of popular vacuum tubes found in classic audio equipment. When designing the Classic Series, Psvane collected the most sought-after NOS tubes and analyzed each element of their construction, incorporating the most effective manufacturing techniques to produce stable tubes with excellent sound. Whether used in guitar amplifiers or hifi stereo systems, the Psvane Classic Series vacuum tubes excel in all applications. Psvane has been producing high quality vacuum tubes since 2011. The Psvane team originally formed in Shuguang’s high-end tube division but eventually split off to form their own brand. Psvane has since acquired their own manufacturing facilities with the goal of improving the production and performance of vacuum tubes.

Mullard 6V6GT tube. Made in Russia. This valve is built to stand the high voltages encountered in the Fender Deluxe Reverb and other guitar amplifiers that ran the valves above the published specification. The smooth and balanced frequency response also makes it suitable for hi-fi use.

Rugged high mu twin triode designed for service as a resistance coupled amplifier or phase inverter in applications requiring resistance to shock and vibrations.

Compactron beam-power pentode primarily designed for use as the horizontal-deflection amplifier in color television receivers. Very low knee voltage, high plate-to-screen ratio, and high peak current capability.

Tung-Sol has reissued the rare 7189, a high fidelity audio specific variation on the EL84 tube. In addition to the increased fidelity, the 7189 features a higher maximum plate voltage rating of 400V. These tubes are great for both guitar and HiFi amplifiers and can be used in any EL84 or 6BQ5 position.

Electro-Harmonix 6AQ8 dual triode preamp tube. Made in Russia.

Rated for more power than the standard 7581 (35W plate dissipation vs 30W plate dissipation).

Tung Sol 6SN7GTB dual triode preamp tube. Made in Russia. Super linearity, low noise, and full performance ratings make this one of the best 6SN7 tubes ever made. The sound signature is on par with 5692 types. Excellent driver tube in high-end audio applications.

The Shuguang 6146B vacuum tube is known for its robust construction and versatility. Engineered for reliable performance, these beam power tetrodes are suitable for a wide range of amplifier applications. Upgrade your setup with the dependable Shuguang 6146B and experience consistent performance in any audio environment. For more information on 6146 vacuum tubes, see our article on the 6146 Family of Vacuum Tubes.

Power amplifier pentode designed for use in the audio-frequency power output stage of television and radio receivers and in high fidelity amplifiers.

Beam-power pentode primarily designed for use in the power output stage of high-fidelity audio-frequency amplifier systems.