Description
Platinum Matched Pair (2 tubes) ECC81 12AUT7 Siemens NOS NIB Branded Standard Industrial . Made in famous Siemens & Halske tube plant in 60s, big ring getter. Tested with 250V on anodes and -3V on grids: (7.3/7.5) (7.6/8.1) mA. Surprisingly good sounding tube in hi end audio amplifiers and in guitar amplifiers too!