ECC803S-JJ

AF twin triode with separate cathodes (non microphonic). Uf = 6.3 / 12.6V, If = ca.300 / 150mA. Characteristic: Ua = 250V, Rk = 1kOhm, Ia = 1.2mA, S = 1.6mA / V, Ri = 62.5kOhm, μ = 100. Limits: Ua = 330V, Wa = 1.2W, Ik = 9mA, Ug = -55V, Rg = 2.2MOhm, Uk / f = 200V. Capacitance (system I): Cg / k = 1.6 pF, Ca = 0.46pF Cg / a = 1.7pF. Capacitance (system II): Cg / k = 1.6pF, Ca = 0.34pF, Cg / a = 1.7pF. Operating characteristics (resistance - coupled gain): Ub = 250/250 / 250V, Ra = 47/100 / 220kOhm, Ia = 1.18 / 0.86 / 0.48mA, Rg = 1/1 / 1MOhm, Rk = 1, 2 / 1.5 / 2.7 / kOhm. Dimensions (H / H with pins x diam.): 49.2 / 56.3 x 22.2 mm