Version 4
SHEET 1 880 680
WIRE 176 32 0 32
WIRE 0 96 0 32
WIRE 176 160 176 112
WIRE 0 240 0 176
WIRE 176 240 0 240
WIRE 0 272 0 240
FLAG 0 272 0
SYMBOL res 160 16 R0
SYMATTR InstName R1
SYMATTR Value 5
SYMBOL voltage 0 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL res 192 256 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R2
SYMATTR Value 7
TEXT 296 232 Left 2 !.op