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The high-??, low-noise dual-triode compact nine-pin tube is used in audio amplification circuits for voltage amplification as well as for inverting drive in push-pull amplifiers. The 12AX7B, 7025 and 12AX7, ECC83 have identical functions and electrical parameters; the latter are improved versions with lower noise levels, making them suitable for use as the first stage…
2026 NEW Shuguang Tube 12AT7-TA(ECC81)Amplifier HIFI Audio Vacuum Tubes the price is for one piece This product features a large electronic glass enclosure, whose inner surface is coated with single-crystal carbon; this coating enables fast electron transmission, rapid heat dissipation, and clear sound transmission. It helps to absorb the temperature inside the tube quickly and…
2026 NEW Shuguang Tube 12AT7(ECC81)Amplifier HIFI Audio Vacuum Tubes the price is for one piece The high-μ dual-triode compact nine-pin tube is used in amplification circuits for voltage amplification and as a driver in push-pull amplifiers. The 12AT7 is similar to the ECC81, 6201, and GT-12AT7, and can be used interchangeably with them. Heating by…
This product features a large electronic glass enclosure, whose inner surface is coated with single-crystal carbon; this coating enables fast electron transmission, rapid heat dissipation, and clear sound transmission. It helps to absorb the temperature inside the tube quickly and dissipate it outside, while also preventing external noise signals from affecting the sound quality. To…
2026 NEW Shuguang Tube 12AU7(ECC82)Amplifier HIFI Audio Vacuum Tubes the price is for one piece The 12AU7 is a small nine-pin dual-tripole tube used in amplification circuits for inverted drive push-pull amplification; it is similar to the ECC82 and 6189 tubes, and can be used interchangeably with them. Heating by a hot wire Uh…………………………………………….. 6.3…
2026 NEW Shuguang Tube 12AX7-TA(ECC83)Amplifier HIFI Audio Vacuum Tubes the price is for one piece This product features a large electronic glass enclosure, whose inner surface is coated with single-crystal carbon; this coating enables fast electron transmission, rapid heat dissipation, and clear sound transmission. It helps to absorb the temperature inside the tube quickly and…
2026 NEW Shuguang Tube 12AX7B(ECC83)Amplifier HIFI Audio Vacuum Tubes the price is for one piece The high-μ, low-noise dual-triode compact nine-pin tube is used in audio amplification circuits for voltage amplification as well as for inverting drive in push-pull amplifiers. The 12AX7B, 7025 and 12AX7, ECC83 have identical functions and electrical parameters; the latter are…
2026 NEW Shuguang Tube 12BH7(E182CC)Amplifier HIFI Audio Vacuum Tubes the price is for one piece Heating by a hot wire Uh…………………………………………………………… 6.3 (in parallel)  12.6 (in series)   V Ih………………………………………………………………0.60     0.3      A Inter-electrode capacitance No.1      No.2 Gate–screen capacitance………………………………………………………..2.6  …
2026 NEW Shuguang Tube 274B(5U4G,5Z3P)Amplifier HIFI Audio Vacuum Tubes the price is for one piece Filament voltage Uf…………………………………………………………….5     V Current through the filament If……………………………………………………………..2     A Maximum allowable values Peak reverse voltage at the anode………………………………1550    V Peak current at the anode………………………………………750    mA…
The 2A3B is an improved version of the 2A3, introduced by Shuguang Tube Factory in 2004; it belongs to the category of directly-heated triode power tubes and was designed specifically for HIFI amplifiers, allowing it to be used as a direct replacement for the traditional 2A3/2A3C tubes. The vocal sound is sweet and smooth, with…
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