Version 4
SHEET 1 880 680
WIRE 128 240 176 240
WIRE 240 240 240 256
WIRE 96 192 96 144
WIRE 96 144 176 144
WIRE 96 288 96 352
WIRE 96 352 176 352
WIRE 176 144 208 144
WIRE 176 224 176 240
WIRE 176 240 240 240
WIRE 176 256 176 240
WIRE 176 336 176 352
WIRE 176 352 208 352
WIRE 448 256 496 256
WIRE 560 256 560 272
WIRE 416 208 416 160
WIRE 416 160 496 160
WIRE 416 304 416 368
WIRE 416 368 496 368
WIRE 496 160 528 160
WIRE 496 240 496 256
WIRE 496 256 560 256
WIRE 496 272 496 256
WIRE 496 352 496 368
WIRE 496 368 528 368
FLAG 240 256 0
FLAG 208 144 out+
FLAG 208 352 out-
FLAG 560 272 0
FLAG 528 160 out2+
FLAG 528 368 out2-
SYMBOL C:\\Program\ Files\\LTC\\SwCADIII\\My\ circuits\\+-Vsource\\v+&- 96 224 R0
SYMATTR InstName U1
SYMATTR Value VNP=15
SYMBOL res 160 128 R0
SYMATTR InstName R1
SYMATTR Value 100R
SYMBOL res 160 240 R0
SYMATTR InstName R2
SYMATTR Value 100R
SYMBOL C:\\Program\ Files\\LTC\\SwCADIII\\My\ circuits\\+-Vsource\\v+&- 416 240 R0
SYMATTR InstName U2
SYMBOL res 480 144 R0
SYMATTR InstName R3
SYMATTR Value 100R
SYMBOL res 480 256 R0
SYMATTR InstName R4
SYMATTR Value 100R
TEXT -2 506 Left 0 !.tran 0 1m 0
TEXT 16 88 Left 0 !.lib v+&-.sub