KT88

KT88 max 52,0 max 110,0 max 125,0 Base: OCTAL Uf = 6,3 V If = 1,6 A Typical Characteristics: Ua = 250 U = 250 g2 I = 140 a I = max. 7 g2 Ug1 = -15 S = 11,5 V V mA mA V mA/V Ri = µ= -g1-g2 12 kΩ 8 Triode Connected U = a, g2 250 I= a+g2 147 Ug1 = -15 S = 12 Ri = 670 µ= 8 V mA V mA/V Ω Limiting Values: Ua = 800 V U = 600 V g2 U = 600 V a, g2 U = -200 V g1 Wa = 42 W Wg2 = 8W W = a+g2 46 W I = 230 mA k U = 250 V k/f Rg1-k (cathode bias) W ≤35 W 470 kΩ a+g2 W >35 W 270 kΩ a+g2 Rg1-k (fixed bias) W ≤35 W 220 kΩ a+g2 Wa+g2>35 W 100 kΩ Capacitances: cg1 = 16,5 pF ca = 10 pF cg1-a = 2,3 pF Red/Blue versions available www.jj-electronic.com a. f. beam pentode a. f. beam pentode ultra - linear connection - 40% taps () 400 300 200 plate characteristics 2=300V 100 0 0 100 200 300 400 500 0 Ua(V) 255 295 355 375 415 455 Ug2(V) 100 200 300 400 500 Ua(V) ...