ECC81 / 12AT7. TESTED GOOD. Made in Great Britain. Blackburn factory.
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ECC81 MULLARD NOS. OLD MULLARD SHIELD LOGO.
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12AT7WA ECC81 CV4024. MADE BY MULLARD UK. MATCHED PAIR (2 TUBES). 1980’s DATE CODE. AS SHOWN ABOVE.
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ECC81 MULLARD 10M SERIES. 10M IEC TOOK THESE VALVES FROM MULLARD, TESTED THEM AND GOLD PLATED THE PINS AND ENSURED RELIABILITY FOR 10,000 HOURS. MULLARD CONSTRUCTION MAY VARY FROM TUBE TO TUBE. THE TUBE WE OPENED TESTED 110% AND WAS A SQUARE GETTER MULLARD FROM THE 60’S.
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Mullard CV4024 (12AT7 / ECC81) Valve Tube. AVO Tested.
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12AT7 ECC81 CV455 Valve Tube. Mullard British Made. Modern Logo Print.
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It has a very smooth and warm sound as well as having very low microphonics. Good for phase inverters or reverb drivers.
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Mullard ECC81 (12AT7) D Getter Valve Tube Tests Good Made in England Tk1 B6K See photos for condition. Tests good on Taylor Model 45C valve tester. Triode 1 mutual conductance reading Gm 7.1 Triode 2 mutual conductance reading Gm 6.6 100% factory data in Taylor manual at Gm 5.5 UK shipping with MyHermes Tracked or Royal Mail. International shipping with Royal Mail International Tracked.
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