ITEM Vf(V) If(A) Va(V) Vg1(V) Vg2(V) Ia(mA) Ig2(mA) Ri(ohm) Gm(mA/V Ra(ohm) Po(W) Pa(W) 4654 6.3 1.35 250 175ohm 275 72 8 22000 8.5 3500 8.8 18 375 470ohm --- 50 --- 3000 4.5 3結 KT55 52 0.3 200 -22 200 110*2 7.5*2 5000 19.0 2000 25 25 PP