Model 12AT7. 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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Brimar ecc81 made in England halo getter black rib plates tests strong code 5I1/1565 1961. No gas shorts grid emissions.
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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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4200/4200 umhos gm
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ECC81 12AT7. MULLARD – HOLLAND. D GETTER WITH FOIL STRIP.
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ECC81 CV4024 12AT7 Valve Tube. Mullard, Made in Great Britain.
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For sale are matched pairs NOS Westinghouse = GE 6201 with yellow printed label. Matched @ 10,0 mA and 5000+ uMhos these are very good sounding NOS tubes for replacing ECC81, 12AT7, 5965, E180CC, 6060 etc.
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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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