6L6GC JJ Red Label (former TESLA)
[NN401]

JJ (former Tesla)  very clean and steely! Lots of headroom!  

6L6 GC     A. F. BEAM PENTODE Base: OCTAL Uf = 6,3 V If = ca 0,9 A Typical characteristic: Class A1 Singl tube Push-Pull Ua = 250 V 270 V Ug2 = 250 V 270 V Ug1 = -14 V -17,5 V Ia = 72 mA 134 mA Ig2 = 5 mA 11 mA Ra = 22,5 kOhms Ra-a = - 5 kOhms N = 6,5 W 17,5 W Limiting values: Triode Ua = 450 V Ug2 = 450 V Wa = 30 W Pentode Ua = 500 V Ug2 = 450 V Wa = 30 W Grid No 1 Circuit Resistence Fixed Bias 0,1 MOhms Self Bias 0,5 MOhms Capacitances: cg1 = 12,5 pF ca = 10 pF ca/g1 = 1,5 pF