Version 4
SHEET 1 880 680
WIRE -144 0 -208 0
WIRE 48 0 -64 0
WIRE 160 0 48 0
WIRE 352 0 240 0
WIRE 480 0 352 0
WIRE 672 0 560 0
WIRE -208 64 -208 0
WIRE 48 64 48 0
WIRE 352 64 352 0
WIRE 672 64 672 0
WIRE -208 224 -208 144
WIRE 48 224 48 144
WIRE 48 224 -208 224
WIRE 176 224 48 224
WIRE 352 224 352 144
WIRE 352 224 176 224
WIRE 672 224 672 144
WIRE 672 224 352 224
WIRE 176 256 176 224
FLAG 176 256 0
SYMBOL res -48 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 2
SYMBOL res 256 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 3
SYMBOL res 576 -16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 2
SYMBOL res 32 48 R0
SYMATTR InstName R4
SYMATTR Value 6
SYMBOL res 336 48 R0
SYMATTR InstName R5
SYMATTR Value 6
SYMBOL res 656 48 R0
SYMATTR InstName R6
SYMATTR Value 4
SYMBOL voltage -208 48 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 15
TEXT -264 280 Left 2 !.tran 1