Version 4
SHEET 1 880 680
WIRE 224 32 96 32
WIRE 224 48 224 32
WIRE 96 128 96 32
WIRE 224 160 224 128
WIRE 304 160 224 160
WIRE 416 160 384 160
WIRE 224 192 224 160
WIRE 96 288 96 208
WIRE 224 288 224 272
WIRE 224 288 96 288
WIRE 416 288 224 288
FLAG 416 160 A
FLAG 416 288 B
SYMBOL voltage 96 112 R0
WINDOW 0 24 16 Invisible 0
WINDOW 3 -82 59 Left 0
SYMATTR InstName V1
SYMATTR Value 10V
SYMBOL res 208 32 R0
WINDOW 0 36 40 Invisible 0
WINDOW 3 36 57 Left 0
SYMATTR InstName R1
SYMATTR Value 20K
SYMBOL res 208 176 R0
WINDOW 0 36 40 Invisible 0
WINDOW 3 36 56 Left 0
SYMATTR InstName R2
SYMATTR Value 30K
SYMBOL res 400 144 R90
WINDOW 0 0 56 Invisible 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 1K