This part is a kind of semiconductor called 12AU7.

Function of this product has Double Triode.

Manufacturers : Ei-RC

Image and pinout :

Some of the text within the PDF file :

"Ei-RC" - Electronic tubes factory ECC82/12AU7 ECC82 is A.F. Double Triode Data Sheet Page 1 of 4 Quick reference data • Anode current Ia=10,5mA • Transcoductance S=2,2mA/V • Amplification µ=17 Heating Heating is indirect by AC od DC, with serial or parallel supply. Heater voltage Heater current pins Vf 6,3 12,6 (V) If 300 150 (mA) 9-(4+5) 4-5 Telephone: FAX: Postal address: Electronic mail: Web site: +381 18 550 741 +381 18 550 806 Bul. Sv. Cara Konstantina 80-86, 18000 Nis, Yugoslavia eirc@eierc.com http://www.eierc.com/rc/default.htm "Ei-RC" - Electronic tubes factory ECC82/12AU7 Dimensions and connections Base: Noval Data Sheet Page 2 of 4 Typical characteristics and operating conditions Anode voltage Grid voltage Anode current Transconductance Amplification Interna [ ... ]

12AU7 PDF Datasheet Download