Version 4
SHEET 1 880 680
WIRE 176 80 48 80
WIRE 368 80 256 80
WIRE 48 128 48 80
WIRE 368 128 368 80
WIRE 48 272 48 208
WIRE 176 272 48 272
WIRE 368 272 368 208
WIRE 368 272 256 272
WIRE 48 288 48 272
FLAG 48 288 0
SYMBOL voltage 48 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL voltage 368 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 4
SYMBOL res 160 96 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 5
SYMBOL res 160 288 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 2
TEXT 14 324 Left 2 !.op