These are re-tested excellent on my digital Maxi Matcher tube tester. These are NOS from 1998, comes with white boxes. Tube 1: Ip (plate current) = 8.45, Transconductance = 6.02 Tube 2: Ip (plate current) = 8.43, Transconductance = 6.07 thank you for looking !.
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Type : 300B. Two 300B ( Matched Pair ).
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300B Cossor logo made by Lin Lai in China NOS. Y ou will receive 1 piece of 300B Cossor. Our usual tube tester is the AVO VCM163. One of the best testers in the world. Made in China, and supplied in original box.
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Type: ST type vacuum tube. Model: Direct heating triode tube.
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Its compatibility with a wide range of devices and systems ensures that it can work seamlessly with your existing setup.
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Type: ST type vacuum tube. Maximum plate current: 100mA. The base is also remade from the mold, and the design is renewed to black. Maximum plate loss: 40W.
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Grid Current ………………………………………………………… …………0.05 μ A. Plate current ………………………………………………………………… 34mA. Maximum plate current …………………………………………………… 10 watts.
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