NOS HF pentode from russian production, good to use for NF (the E180F was used for example in the V72b studio amplifier).
Compare to: E180F
Pinout: 1=K, 2=g1, 3=K, 4=H, 5=H, 6=LEER, 7=A, 8=g3, 9=g2
Typical operating values:
Filament 6,3V/0,3A, Ua=150V, Ug1=-1,1V, Ug2=150V, Ug3=0V, Ia=15,5mA, Ig2=5mA, S=17,5mA/V, Ri=150KOhm
Maximal operating values:
Ua=250V, Ug2=160V, Pa=3W, Pg2=0,75W, Ik=35mA, Ukh=100V, Rg1=1MOhm