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Bugera 12AU7 Preamp Tube #1534dr

Bugera 12AU7 Preamp TubeThe Bugera 12AU7 Premium Dual-Triode Preamp Tube produces unbelievable warmth and tone. The 12AU7 tube is compatible with any Bugera amp and is easily installed. All Bugera tubes are subject to rigorous quality tests such as a 48-hour burn-in test and their vibration table test.
Bugera H85740 – Bugera 12AU7 Preamp Tube – musical instruments

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Orange Amplifiers Tube Tester #2497ec

Orange Amplifiers Tube TesterThe easy to use VT1000 is a fully automatic tube tester that performs a wide range of tests quickly and accurately. The benefits of using the VT1000 are clear and wide reaching; users can quickly and simply match and test valves, plus receive a reliable health check as to whether their valves are good, bad or worn. Until now testing tubes with little or no knowledge of valve theory was difficult, expensive and often unreliable. The VT1000 will test all popular power and pre-amp valves. Its ease of use will appeal to all tube users.The unit has one octal and two nine pin valve sockets for different tube types; simply insert the tube to be tested into the correct socket, select the tube type from the list on the unit and press START’ to test. The results are displayed clearly and concisely using LEDs and will test for a wide range of fault conditions, which could easily cause damage to other components. The simplicity of operation belies what is going on inside the box’, where a CPU controlled testing system is in operation, allowing full control over all inter-electrode switching and measurement operations.
Orange Amplifiers H98876 – Orange Amplifiers Tube Tester – musical instruments

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Groove Tubes GT-12AX7-R2 Preamp Tube #3293bo

Groove Tubes GT-12AX7-R2 Preamp TubeThe Groove Tubes GT-12AX7-R2 Preamp Tube is the second offering from the Russian tube factory. It has larger plates and a big bass response, also a spiral filament which reduces hum in some amp designs.These long plate tubes are a great choice for a phase inverter tube as well for fans of long plate phase inverters.Country of origin: Russia Country of origin: Russia
Groove Tubes H10200 – Groove Tubes GT-12AX7-R2 Preamp Tube – musical instruments

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Groove Tubes Gold Series GT-12AX7-R Preamp Tube #6452jr

Groove Tubes Gold Series GT-12AX7-R Preamp TubeThe Groove Tubes Gold Series GT-12AX7-R Preamp Tube is an older-style Russian-type vacuum tube with strong tone and a slightly edgy tone. This newer tube from Russia has slightly brighter and lower gain, quicker compression than the GT 12AX7. Great for most Fender amplifiers, especially lower gain Fender-type amps. Country of origin: Russia Country of origin: Russia
Groove Tubes 219148 – Groove Tubes Gold Series GT-12AX7-R Preamp Tube – musical instruments

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Electro-Harmonix 12AX7EH Preamp Tube #2147sv

Electro-Harmonix 12AX7EH Preamp TubeThe Electro-Harmonix 12AX7EH is a preamp tube that provides high gain with ultra low noise. The tube’s detailed, musical tone rivals the most desirable NOS types. Unique spiral filament eliminates the filament-to-cathode induced hum common on amps that use AC on the filaments.
Electro-Harmonix 210088 – Electro-Harmonix 12AX7EH Preamp Tube – musical instruments

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Groove Tubes Gold Series GT-12AU7 Preamp Tube #8645bv

Groove Tubes Gold Series GT-12AU7 Preamp TubeThe Groove Tubes GT-12AU7 preamp tube is based on a design from the Ei factory in the former Yugoslavia. The GT-12AU7 is an excellent quality large-plate European-made driver tube, styled after the famous Telefunken line of dual triodes. The usual application for a 12AU7 tube is as the phase inverter that drives the power tubes. These are very well matched, and so are highly recommended for Ampeg SVT’s and other amps using this tube as a phase inverter. Also commonly used as phase inverters in McIntosh Hi-Fi amps, some Ampeg amps, and will yield the most clean headroom in many amps. In the latest Fender Pro Series amps such as the Pro Reverb, Concert, and Twin, this tube in V2 (or a 12AY7), will drop the gain of the gain channel where some feel the tone is of a less intense or “buzzy” character. This will then allow a much wider range in the sweep of the volume and gain controls of this channel.Country of origin: China Country of origin: China
Groove Tubes 212012 – Groove Tubes Gold Series GT-12AU7 Preamp Tube – musical instruments

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Groove Tubes Gold Series GT-12AX7-C Preamp Tube #9868dw

Groove Tubes Gold Series GT-12AX7-C Preamp TubeThe Groove Tubes GT-12AX7-C preamp tube brings back the ever-popular and sorely missed Chinese 12AX7! This Gold Series tube has a warm, fat, old-style tone favored by blues players and the classic rock crowdCountry of origin: China Country of origin: China
Groove Tubes 212200 – Groove Tubes Gold Series GT-12AX7-C Preamp Tube – musical instruments

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Groove Tubes Gold Series GT-6072-M Preamp Tube #6306jx

Groove Tubes Gold Series GT-6072-M Preamp TubeThis Groove Tubes Gold Series GT-6072-M Preamp Tube specially selected and made to JAN spec. 12AY7 type tube with low noise. For use in tube microphones and recording gear.Country of origin: Russia Country of origin: Russia
Groove Tubes 219153 – Groove Tubes Gold Series GT-6072-M Preamp Tube – musical instruments

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Jet City Amplification Retrovalve Amber #8043wj

Jet City Amplification Retrovalve AmberRetroValves are 100% analog vacuum tube replacement devices offering the warm, fat, punchy sound traditionally associated with only glass vacuum tubes. AMBER RetroValves are nominally the same gain as a standard 12AX7 and perform as you would expect a 12AX7 would. RED RetroValves are very high gain, allowing the preamp to achieve gain characteristics not possible with standard vacuum tubes. BLUE RetroValves are significantly lower gain, effectively “cooling off” the preamp gain.Choose the tube color that fits your sound best.
Jet City Amplification J25063.002 – Jet City Amplification Retrovalve Amber – Jet City Amplification, Preamp Tubes

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