ECC803 A. F. twin triode
ECC 803 A. F. twin triode with separate cathodes, non microphonic Base: NOVAL Uf = 6,3/12,6 V If = ca. 300/150 mA Typical characteristic: Ua = 250 V Rk = 1 k6 Ia = 1,2 mA S = 1,6 mA/V Ri = 62,5 kΩ µ = 100 Limiting values: Ua = 330 V Wa = 1,2 W Ik = 9 mA Ug = -55 V Rg = 2,2 MΩ Uk/f = 200 V Capacitances: system I. cg/k = 1,6 ca = 0,46 cg/a = 1,7 system II. cg/k = 1,6 pF ca = 0,34 pF cg/a = 1,7 pF Operating characteristics: Resistance - coupled amplifier Ub = Ra = Ia = Rg = Rk = 250 47 .
