For sale are NOS matched pairs Sylvania JAN CHS 12AT7 ECC81 with aO getter and black plates. Price is for a matched pair.
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Silver Grade tubes are matched within15%, Gold Grade tubes within10% and Platinum Plus Grade1%. You are purchasing a "Platinum Grade" tube. The price listed is for one tube.
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12AT7 CV4024 BLACK PLATE ROUND GETTER VALVE TUBE AVO VCM163 TESTED La 12/12 gm 6.2/6 100% avo book is la 10 gm 5.5.
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Original Genalex Gold Lion ECC81/12AT7 tubes are considered among the best 12AT7 types ever made. They are hard to find and when they are available, they are expensive. Tested on a Hi End Maxi-Preamp II tester for Gain (Mu), Transconductance (Gm), and Noise (dB), a gain of <50> is the expected result for NOS in this instance,Price is for one matched pair tubes ( 2 Tubes ).
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Mullard CV4024 12AT7WA ECC81. All parcels with value ofGBP20 and over. one or more item from.
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2x GE 6201 12AT7WA. Dual Triode USA Tube Valve NOS Special Quality ECC81 12AT7.
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QUALITY AMPEREX HOLLAND. ALL ARE ACTUAL Pictures of this AMPEREX BUGLE-BOY "MADE IN HOLLAND.". ECC83 = 12AX7. NOS 1960 ECC83 / 12AX7. LOW NOISE ECC83."This is the one you want, the BUGLE-BOY ECC83 / 12AX7 version from 1960 with the HUGE HALO GETTER RING'". the MOST beautiful sounding tube with liquid midrange and etherial highs. if there is one tube you want this is it.".
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Reference tube is tested first then the tube listed for sale. Test procedure.
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