Version 4
SHEET 1 880 680
WIRE 288 32 112 32
WIRE 288 48 288 32
WIRE 288 48 208 48
WIRE 368 48 288 48
WIRE 112 64 112 32
WIRE 208 64 208 48
WIRE 368 64 368 48
WIRE 208 160 208 144
WIRE 272 160 208 160
WIRE 368 160 368 144
WIRE 368 160 352 160
WIRE 208 176 208 160
WIRE 368 176 368 160
WIRE 208 272 208 256
WIRE 288 272 208 272
WIRE 368 272 368 256
WIRE 368 272 288 272
WIRE 288 288 288 272
FLAG 112 144 0
FLAG 288 288 0
SYMBOL voltage 112 48 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 1V
SYMBOL res 192 48 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 352 48 R0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res 192 160 R0
SYMATTR InstName R3
SYMATTR Value 4.7k
SYMBOL res 352 160 R0
SYMATTR InstName R4
SYMATTR Value {R}
SYMBOL voltage 256 160 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 -32 56 VBottom 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 0V
TEXT 136 328 Left 0 !.step param R 4k 5k 10
TEXT 136 304 Left 0 !.op