Vacuum Tubes

Power tetrode, medium-mu 9-pin miniature for use in automobile radio receivers operated directly from 12-volt storage batteries.

Combined high-mu voltage amplifier and double-diode detector using the 7-pin miniature construction. It is intended to provide output voltage adequate for full-power output of most beam-power tubes.

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.

Electro-Harmonix 12AT7 / ECC81 Vacuum Tube Large plate format, superior dissipation over the originals. Perfect for reverb and driver circuits.

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.

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.

The TAD ECC81 / 12AT7-Cz is selected with regards to a tight balance of both triodes making it ideal for the use as a balanced phase inverter. In addition to the perfect symmetrical systems, the strong amplification characteristics of the TAD ECC81 / 12AT7-Cz support increased dynamics of the output stage when used as phase driver or phase inverter tube. Q: When does a power tube become a Premium Selected power tube? A: All power tubes labeled Premium Selected have passed the following tests:

• Plate Current (PC) and Amplification (TC)
• Low Noise Test
• Microphonic Test
• Sonic Tests
• Shock Tests
• Listening Tests
• Shorts & Leakage Tests

Mullard 12AT7 / ECC81 dual triode preamp tube. Made in Russia.

The Shuguang 12AT7 vacuum tube brings vintage tone and exceptional performance to any amplifier. From rich harmonics to smooth articulation, these 9-pin dual triode tubes deliver versatility and expressiveness for any musical style. The Shuguang 12AT7 is a great choice for reverb driver circuits in tube amps. Renowned for its balanced tonal response and dynamic range, the 12AT7 breathes life into your amplifier, delivering rich harmonics and smooth articulation across the frequency spectrum. From lush cleans to creamy overdrive, these tubes provide the versatility and expressiveness to suit any musical style. Built to exacting standards and engineered for reliability, the Shuguang 12AT7 ensures consistent performance even under the most demanding conditions. Whether you're tracking in the studio or performing on stage, you can trust these tubes to deliver exceptional tone and stability every time.

Tung Sol 12AT7W / 6201 dual triode preamp tube. Made in Russia. Premium Twin Triode ideal for use in reverb and driver circuits. Superior dissipation compared to NOS versions of this tube.
• Extra-low microphonics makes it the best 12AT7 choice for reverb circuits. Also suitable for HiFi.
• Factory selected for closest tolerances and most consistent performance
• ECC81 equivalent

Electro-Harmonix 12AT7WC dual triode preamp tube. Made in Russia. “Xtra Low Microphonic”. Small plate format dual triode, with low microphonics and superior dissipation compared to NOS originals. Ideal for reverb circuits.

Triode, Dual, HF

The 12AU6 is a pentode amplifier having a sharp cut-off control characteristic using the miniature construction. With high transconductance, low grid-plate capacitance, it is intended for service as either an RF or AF amplifier.

Tung Sol 12AU7W / 6189 dual triode preamp tube. Made in Russia.

Genalex Gold Lion ECC82/B749 (12AU7) dual triode preamp tube with gold pins. Made in Russia. The original Genalex Gold Lion ECC82/B749 is one of the most rare 12AU7 types ever made. This tube featured superb linearity, balanced sections, and extremely low noise. The reissue Genalex Gold Lion ECC82/B749 features gold plated pins and has been carefully engineered to recreate all of the attributes of the original. This tube is a premium replacement for all 12AU7, ECC82, 5814, and 6189 types.

A medium gain dual triode built with the quality and reliability that we’ve come to expect from a JJ tube. This 12AU7 offers smooth tones and clear definition which is why it’s no surprise that this tube is often found in hifi equipment as well as guitar amplifiers.

Mullard 12AU7 / ECC82 dual triode preamp tube. Made in Russia.

The Shuguang 12AU7 vacuum tube is meticulously crafted to bring your sound to life. Renowned for its balanced tonal response and exceptional reliability, this 9-pin dual triode is a favorite among musicians and audiophiles seeking premium performance. The Shuguang 12AU7 is a great choice for driver stages in tube amps. With its smooth, detailed sound and ample headroom, the 12AU7 enhances the sonic landscape of any amplifier or audio system. From pristine cleans to velvety overdrive, these tubes deliver a dynamic range that captivates listeners and inspires performers. Crafted with precision engineering and built to exacting standards, the Shuguang 12AU7 ensures consistent performance even under the most demanding conditions. Whether you're recording in the studio or enjoying your favorite vinyl at home, you can trust these tubes to deliver unparalleled sound quality and reliability.

Superior medium-Mu Twin Triode for use in preamplifier and driver circuits. Standard replacement for all circuits requiring 12AU7/ECC82 types.

Medium-mu twin triode intended for service in radio and television receivers or in audio amplifiers. The tube is suitable for use in a variety of stages, such as general-purpose amplifier, phase inverter, oscillator, or multivibrator.

The Perfect Choice for Stereo Audio Applications - Ideal as a Balanced Driver. Latest revision providing great musical performance and rich tone. This TAD 12AU7A / ECC82 has especially strong systems which are selected to provide two symmetric triodes. The perfect choice for stereo audio applications and ideal as a balanced driver.

Telefunken Brand. Miniature medium-mu twin triode intended for service in radio and television receivers or in audio amplifiers.

Combines a high mu triode and two independent diode units in the 7-pin miniature construction. It permits a single tube to function as detector, AVC rectifier, and audio amplifier.

Miniature, medium-mu twin triode for use as a radio-frequency amplifier or as a combined oscillator and mixer in VHF television receivers. It my also be used as an audio-frequency amplifier.