Siemens
Siemens E81CC ECC801S 6201 ECC81 Matched pair triple mica W. Germany USED TESTED
Siemens E81CC ECC801S 6201 ECC81 Matched pair triple mica W. Germany USED TESTED
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Matched pair (two tubes) of rare Siemens & Halske E81CC ECC801S 6201
They are premium, triple mica, copper grid posts, dual getter support, long life version of ECC81 / 12AT7.
This is true E81CC by Siemens & Halske, great sounding tube. The tubes are slightly USED, pull outs from professional military devices!
They are carefully tested and matched on calibrated Metrix U61B tester. They are tested with 250V on plates and -3.0V on grids, 100% at these voltages is 5.3mA, these tubes measure 90-115% of NOS values.
They are made in Munich Siemens&Halske tube plant and # logo is visible on photos.
They are used, but please pay attention, that they are premium long life tubes with totally different cathode coating and 10000 hours of use within specs, so they will have few decades of use in some well designed preamp. No returns please on this item!
