TUBE ARE TESTED ON AMPLITREX AT1000 TUBETESTER FOR IP AND GM VALUE.LOOK AT THE PICTURE FOR TEST VALUE.
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Matched QUAD NOS RCA 12AU7-WA vacuum tubes, also known as 6189 or ECC802S. See attached photo. 6189 = ECC802S. Here is a great opportunity to own a fantastic pair or quad selected from 100 new in the box RCA 12AU7WA.
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ECC802S long plate valve for Hi-Fi amplifiers. About the JJ Electronics ECC802S valve. The JJ ECC802S is a long plate version of the ECC82 (12AU7). ECC802S Preamp Tubes for sale. Its design produces extra cooling, making it ideal for long service life.
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eBay
These valves that are well matched and giving good results and spec on an AVO VCM mkIV. Ia2 = 11 mA | S2 = 2.4 mA/V. Ia1 = 10.5 mA | S1 = 2.4 mA/V.
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4x TESLA ECC802S / 12AU7WA. These are industrial-grade tubes made for army or aerospace use, and other demanding applications. Tube 4: Ia1= 3.10mA / Ia2 = 3. 10 mA, S /gm1= 1.05 mA/V / S/gm2= 1.05 mA/V.
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2x TESLA ECC802S / 12AU7WA. of original TESLA ECC802S tubes. These are industrial-grade tubes made for army or aerospace use, and other demanding applications. PROTOTYPE SERIE! Tube 2: Ia1=2.90mA / Ia2 =3.00mA, S/gm1= 1.00 mA/V / S/gm2= 1.05mA/V.
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