Version 4
SHEET 1 880 680
WIRE -96 80 -320 80
WIRE 112 80 -16 80
WIRE 160 80 112 80
WIRE 304 80 240 80
WIRE 464 80 304 80
WIRE -320 144 -320 80
WIRE 112 144 112 80
WIRE 304 144 304 80
WIRE 464 144 464 80
WIRE -320 288 -320 224
WIRE 112 288 112 224
WIRE 112 288 -320 288
WIRE 304 288 304 224
WIRE 304 288 112 288
WIRE 464 288 464 224
WIRE 464 288 304 288
WIRE 112 320 112 288
FLAG 112 320 0
FLAG 112 80 V1
FLAG 304 80 V0
SYMBOL voltage -320 128 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 6
SYMBOL res 0 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 5
SYMBOL res 256 64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 3
SYMBOL bi 112 224 R180
WINDOW 0 24 80 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName B1
SYMATTR Value I=1.5*(V(V1)-V(V0))/3
SYMBOL res 288 128 R0
SYMATTR InstName R3
SYMATTR Value 4
SYMBOL res 448 128 R0
SYMATTR InstName R4
SYMATTR Value 999999999
TEXT -354 344 Left 2 !.op