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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FOR SALE 4 RFT ECC81 NEW NOS TUBES.
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📦 Overview: GE 12AT7 (Communications Grade). Type: Dual triode. Transconductance (Gm): ~5500–6000 µmhos per triode. These are very special COMMUNICATIONS GRADE 12AT7 twin triodes. THESE TUBES ARE COMMUNICATION GRADE.
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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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Matched Pair ECC81 12AT7 Valves Tubes. Toshiba, Made in Japan. Fully Tested & Electrically Matched.
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Brimar, Made in England. Supplied in Brimar Box. ECC81 12AT7 Valve Tube.
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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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Made in December 1965 in Blackburn England. Made in England. ____ ______. Date Code: Tk3 B5L2. where minimum good value is 2500.
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