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)	 	
EL152	6.3	1.55	300 	-24	250	130	3.2	50000	4.0	2000	18	40
EL156	6.3	1.9	450	(90ohm)	280	112	17	25000	10.0	3800	25	50