1 difpair ckt - simple differential pair
2 * modified from Spice-3 examples
4 *>.opt rstray outwidth=80
6 vin 1 0 sin(0 0.1 5meg) ac 1 dc 0
18 .model qnl npn(bf=80 rb=100 va=50)
22 *>.print op v(1,2,3,4,5,6,7,8,9)
76 *>.print tran v(4) v(5)
78 *>.plot tran v(4)(-4,12) v(5)(-4,12)
81 *>.plot ac vm(5)(0,100) vp(5)(-180,180)
85 *>.plot ac vm(5)(0,100) vp(5)(-180,180)