Version 4
SHEET 1 1316 776
WIRE 192 0 96 0
WIRE 352 0 272 0
WIRE 560 0 352 0
WIRE 976 0 560 0
WIRE 1152 0 976 0
WIRE 976 48 976 0
WIRE 96 80 96 0
WIRE 352 160 352 0
WIRE 704 208 416 208
WIRE 896 208 800 208
WIRE 976 208 976 112
WIRE 1152 208 1152 0
WIRE 560 448 560 0
WIRE 688 448 560 448
WIRE 752 448 752 272
WIRE 976 464 976 208
WIRE 752 576 752 448
WIRE 96 704 96 160
WIRE 352 704 352 256
WIRE 352 704 96 704
WIRE 576 704 352 704
WIRE 752 704 752 656
WIRE 752 704 576 704
WIRE 976 704 976 528
WIRE 976 704 752 704
WIRE 1152 704 1152 272
WIRE 1152 704 976 704
FLAG 576 704 0
SYMBOL voltage 96 64 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 1
SYMBOL ind 176 16 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 100µ
SYMBOL npn 416 160 M0
SYMATTR InstName Q1
SYMATTR Value BC337-25
SYMBOL pnp 704 272 R270
SYMATTR InstName Q2
SYMATTR Value 2N3906
SYMBOL cap 752 432 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 450p
SYMBOL res 736 560 R0
SYMATTR InstName R1
SYMATTR Value 75k
SYMBOL res 992 192 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 82
SYMBOL diode 960 48 R0
SYMATTR InstName D1
SYMATTR Value 1N4148
SYMBOL LED 1136 208 R0
SYMATTR InstName D2
SYMATTR Value NSCW100
SYMBOL cap 960 464 R0
SYMATTR InstName C2
SYMATTR Value 100n
TEXT 88 760 Left 2 !.tran 0 5.5m 5m 50µ