Version 4
SHEET 1 880 680
WIRE 160 160 -16 160
WIRE 400 160 224 160
WIRE 160 192 32 192
WIRE 480 192 224 192
WIRE 32 208 32 192
WIRE 480 208 480 192
WIRE -16 224 -16 160
WIRE 160 224 -16 224
WIRE 368 224 224 224
WIRE -16 288 -16 224
FLAG 32 208 0
FLAG -16 368 0
FLAG 480 288 0
FLAG 368 304 0
FLAG 400 240 0
SYMBOL SpecialFunctions\\Dual_Buffer 192 192 R0
SYMATTR InstName U1
SYMBOL voltage -16 272 R0
WINDOW 3 -347 137 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value PULSE(0 3 0 10E-9 10E-9 20E-6 40E-6)
SYMATTR InstName V1
SYMBOL voltage 480 192 R0
WINDOW 3 24 44 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value 5
SYMATTR InstName V2
SYMBOL res 384 144 R0
SYMATTR InstName R1
SYMBOL res 352 208 R0
WINDOW 0 36 113 Left 0
SYMATTR InstName R2
TEXT -368 432 Left 0 !.tran 60E-6