Version 4
SHEET 1 1052 680
WIRE 752 -32 480 -32
WIRE 896 -32 848 -32
WIRE 336 112 256 112
WIRE 480 112 480 -32
WIRE 480 112 416 112
WIRE 560 112 480 112
WIRE 800 112 800 32
WIRE 800 112 640 112
WIRE 896 112 896 -32
WIRE 256 176 256 112
WIRE 800 176 800 112
WIRE 480 224 480 112
WIRE 736 224 480 224
WIRE 256 304 256 256
WIRE 800 352 800 272
WIRE 336 400 256 400
WIRE 480 400 480 224
WIRE 480 400 416 400
WIRE 688 400 656 400
WIRE 256 432 256 400
WIRE 656 432 656 400
WIRE 256 544 256 496
WIRE 656 544 656 512
FLAG 800 352 0
FLAG 256 304 0
FLAG 256 544 0
FLAG 896 112 0
FLAG 256 400 V
FLAG 656 544 0
FLAG 688 400 V_delay
SYMBOL ind 544 128 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L2
SYMATTR Value 0.1H
SYMATTR SpiceLine Rser=5 Cpar=10p
SYMBOL ind 320 416 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 0.1H
SYMATTR SpiceLine Rser=5 Cpar=10p
SYMBOL cap 240 432 R0
SYMATTR InstName C
SYMATTR Value 0.1uF
SYMBOL voltage 256 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName Vs
SYMATTR Value 5V
SYMBOL res 432 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R
SYMATTR Value 679
SYMBOL npn 752 32 R270
SYMATTR InstName Q2
SYMATTR Value 2N3904
SYMBOL npn 736 176 R0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL bv 656 416 R0
SYMATTR InstName B
SYMATTR Value V=delay(V(V),0.15m)
TEXT 400 -88 Left 2 !.tran 0 2 1.5 0.01