Version 4 SHEET 1 1128 680 WIRE -512 320 -512 288 WIRE -512 208 -512 176 WIRE -512 176 -368 176 WIRE -368 176 -368 208 WIRE -368 288 -368 320 FLAG -512 320 0 FLAG -368 320 0 SYMBOL current -512 288 R180 WINDOW 0 24 88 Left 0 WINDOW 3 24 0 Left 0 SYMATTR InstName I1 SYMATTR Value 1 SYMBOL res -384 192 R0 SYMATTR InstName R1 SYMATTR Value {vary} TEXT -736 208 Left 0 !.tran 1u TEXT -752 120 Left 0 ;.step param vary list 100 120 150 180 220 270 330 390 470 560 680 820 TEXT -744 80 Left 0 !.step dec param vary 100 1000 12