Version 4
SHEET 1 880 680
WIRE 160 128 -80 128
WIRE -80 144 -80 128
WIRE 160 144 32 144
WIRE 160 160 144 160
WIRE 144 176 144 160
WIRE 160 176 144 176
WIRE 144 208 144 176
WIRE 160 208 160 192
WIRE 160 208 144 208
WIRE 176 208 176 192
WIRE 176 208 160 208
WIRE 160 224 160 208
FLAG 160 224 0
FLAG -80 224 0
FLAG 32 224 0
FLAG 368 144 0
SYMBOL voltage -80 128 R0
WINDOW 3 -59 142 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(0 1 5u .1u .1u 10u 30u)
SYMATTR InstName V1
SYMBOL voltage 32 128 R0
WINDOW 3 17 118 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value PULSE(0 1 10u .1u .1u 10u 30u)
SYMATTR InstName V2
SYMBOL res 384 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1k
TEXT -144 288 Left 2 !.tran 0 100u 0 .1u