"Like a warm British jacket of the finest tweed, these glorious tubes have an attractive sweet warmth in their midrange and lower regions.". The top end is silky and pleasant and doesn't get rolled off.
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A tube was considered acceptable/new/ passed standards if it tested between the specified minimum and maximum on a tube data sheet or the minimum value specified on the tester (tv7 is minimum is 65%).
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It’s been said that the Mullard sound can be most likened to a warm British jacket of the finest tweed. And I like how Mullard tubes sound, too. Enticingly intimate and warm, almost sweetly so, it’s always a close, handsy dance when listening to a Mullard.
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SLANTED SQUARE D GETTER. AUDIO VACUUM TUBE. reserve the right to assess. MINIMUM GOOD = 60. you encounter any issues with. you encounter any issues. look forward to serving you. (FUN FACT - THE SENCORE MIGHTY MITE IS SAID TO BE ONE OF THE BEST TESTERS EVER MADE FOR GRID LEAKAGE TESTING).
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Very Rare Mullard ECC83 / 12AX7,1600, 1954 Valve/Vacuum Tube - AVO Tested strong and balanced. Blackburn manufacture with D4, 1600 April 1954 date code.Long plate, square getter. Lettering excellent.
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2x BRIMAR 12AX7 Valves. This valve has also been tested in amplifier without any noise. Ia1 = 1.12(mA), gm1 = 2(mA/V). NOS specification: Ia = 1.2(mA), gm = 1.6(mA/V). Ia2 = 1.3(mA), gm2 = 2.1(mA/V).
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I test all tubes thoroughly and with great care. I test to the best of my ability, and I report all results honestly.
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SQUARE D GETTER. AUDIO VACUUM TUBE. reserve the right to assess. MINIMUM GOOD = 60. you encounter any issues with. you encounter any issues. look forward to serving you. (FUN FACT - THE SENCORE MIGHTY MITE IS SAID TO BE ONE OF THE BEST TESTERS EVER MADE FOR GRID LEAKAGE TESTING).
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