Version 4
SHEET 1 880 680
WIRE 256 16 48 16
WIRE 256 32 256 16
WIRE 48 96 48 16
WIRE 256 144 256 112
WIRE 48 224 48 176
WIRE 256 224 48 224
WIRE 48 256 48 224
FLAG 48 256 0
SYMBOL res 240 16 R0
SYMATTR InstName R1
SYMATTR Value 12
SYMBOL voltage 48 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 20
SYMBOL res 240 128 R0
SYMATTR InstName R2
SYMATTR Value 8
TEXT 360 240 Left 2 !.op