Model 12AT7WA. Double Triode. Designed as a grounded grid radio frequency amplifier or as a combined oscillator and mixer at frequencies below appr. 300 mC, mostly used in guitar amplifiers.Found in many high fidelity applications, as each triode section in normal use operates as a class A amplifier.
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They are suitable for ECC81, ECC82, ECC83, ECC85, ECC88, ECC801S, ECC802S, ECC803S, 6BQ5, 6922, 12AX7, 12AT7, E88CC, E188CC, EL84, EL86, PL84, EZ81, EZ80, EC900, PC900, 6HM5, EF95, EF92 and many other types.
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12AXY, 12AT7, and 12AU7, can still be confusing to differentiate and understand which is used for what purpose and whether one can be substituted for another. Below we will try to clarify the most common differences between the 12AXY, 12AT7, and 12AU7, and in what circumstances they can be interchangeable.
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Reference tube is tested first then the tube listed for sale. Test procedure.
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ECC81 Mullard. Valve / Tube. If you buy more than 1 item from. Fully Tested.
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Has slightly lower gain which may not even be noticed. In most cases will replace the hard to find and expensive 12AX7/ECC83.
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12AXY, 12AT7, and 12AU7, can still be confusing to differentiate and understand which is used for what purpose and whether one can be substituted for another. Below we will try to clarify the most common differences between the 12AXY, 12AT7, and 12AU7, and in what circumstances they can be interchangeable.
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12AXY, 12AT7, and 12AU7, can still be confusing to differentiate and understand which is used for what purpose and whether one can be substituted for another. Below we will try to clarify the most common differences between the 12AXY, 12AT7, and 12AU7, and in what circumstances they can be interchangeable.
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