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 kΩ - Ra-a = - 5 kΩ 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 MΩ 0,1 MΩ Self Bias 0,5 MΩ 0,5 MΩ Capacitances: cg1 = 12,5 pF ca = 10 pF ca/g1 = 1,5 pF
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