Version 4
SHEET 1 880 680
WIRE 32 96 -128 96
WIRE 176 96 112 96
WIRE 400 96 176 96
WIRE 400 192 400 96
WIRE -128 224 -128 96
WIRE 176 288 176 96
WIRE 400 336 400 256
WIRE 400 336 320 336
WIRE 432 336 400 336
WIRE 576 336 432 336
WIRE 320 384 320 336
WIRE 432 400 432 336
WIRE -128 512 -128 304
WIRE 176 512 176 352
WIRE 176 512 -128 512
WIRE 320 512 320 464
WIRE 320 512 176 512
WIRE 384 512 320 512
WIRE 432 512 432 464
WIRE 432 512 384 512
WIRE 384 560 384 512
FLAG 384 560 0
SYMBOL res 128 80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL diode 384 192 R0
SYMATTR InstName D1
SYMATTR Value 1N914
SYMBOL cap 416 400 R0
SYMATTR InstName C1
SYMATTR Value 1n
SYMBOL res 304 368 R0
SYMATTR InstName R2
SYMATTR Value 1Meg
SYMBOL voltage -128 208 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value PULSE(0 5 0 0 0 1.2u 2.4u)
SYMBOL cap 160 288 R0
SYMATTR InstName C2
SYMATTR Value 1p
TEXT -162 584 Left 2 !.tran 1m