Version 4
SHEET 1 880 680
WIRE 192 32 96 32
WIRE 256 32 192 32
WIRE 336 32 256 32
WIRE 496 32 400 32
WIRE 576 32 496 32
WIRE 496 64 496 32
WIRE 96 96 96 32
WIRE 576 96 576 32
WIRE 192 112 192 96
WIRE 256 112 192 112
WIRE 320 112 256 112
WIRE 432 112 400 112
WIRE 256 160 256 112
WIRE 496 192 496 160
FLAG 96 176 0
FLAG 496 272 0
FLAG 256 224 0
FLAG 576 160 0
SYMBOL voltage 96 80 R0
WINDOW 3 -45 193 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value PULSE(0 9 0.1 0.1 0.1 12 1 1)
SYMBOL res 240 16 R0
WINDOW 3 -5 -11 Left 2
SYMATTR InstName R1
SYMATTR Value 1000k
SYMBOL res 416 96 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 47k
SYMBOL res 512 288 R180
WINDOW 0 36 76 Left 2
WINDOW 3 76 70 Left 2
SYMATTR InstName R3
SYMATTR Value 47k
SYMBOL cap 240 160 R0
WINDOW 3 39 40 Left 2
SYMATTR InstName C1
SYMATTR Value 22u
SYMBOL pnp 432 160 M180
WINDOW 0 58 28 Left 2
WINDOW 3 53 60 Left 2
SYMATTR InstName Q1
SYMATTR Value 2N2907
SYMBOL diode 336 48 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName D1
SYMBOL diode 208 96 R180
WINDOW 0 1 -37 Left 2
WINDOW 3 5 -71 Left 2
SYMATTR InstName D2
SYMBOL cap 560 96 R0
WINDOW 0 4 140 Left 2
WINDOW 3 -2 109 Left 2
SYMATTR InstName C2
SYMATTR Value 470u
TEXT 54 216 Left 2 !.tran 30 startup