Version 4
SHEET 1 880 680
WIRE 32 -48 -80 -48
WIRE 160 -48 112 -48
WIRE 368 -48 240 -48
WIRE -80 96 -80 -48
WIRE -16 96 -80 96
WIRE 128 96 64 96
WIRE 192 96 128 96
WIRE 368 96 368 -48
WIRE 368 96 272 96
WIRE 368 144 368 96
WIRE -80 160 -80 96
WIRE 128 160 128 96
WIRE -80 304 -80 240
WIRE 128 304 128 240
WIRE 128 304 -80 304
WIRE 368 304 368 224
WIRE 368 304 128 304
WIRE 128 320 128 304
FLAG 128 320 0
FLAG 128 96 VO
SYMBOL voltage -80 144 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL voltage 16 -48 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 -32 56 VBottom 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 24
SYMBOL current 368 224 R180
WINDOW 0 24 80 Left 2
WINDOW 3 24 0 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName I1
SYMATTR Value 3
SYMBOL res 112 144 R0
SYMATTR InstName R1
SYMATTR Value 3
SYMBOL res 80 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 4
SYMBOL res 288 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 4
SYMBOL res 256 -64 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 8
TEXT -114 344 Left 2 !.tran 1