Version 4
SHEET 1 880 680
WIRE 320 32 96 32
WIRE 464 32 320 32
WIRE 96 64 96 32
WIRE 320 64 320 32
WIRE 464 128 464 32
WIRE 96 176 96 144
WIRE 320 176 320 144
WIRE 400 176 320 176
WIRE 320 208 320 176
WIRE 464 240 464 224
WIRE 256 256 96 256
WIRE 96 288 96 256
WIRE 320 320 320 304
WIRE 464 320 464 304
WIRE 96 400 96 368
WIRE 464 400 464 384
WIRE 320 416 320 400
WIRE 320 496 320 480
WIRE 464 496 464 480
FLAG 96 176 0
FLAG 464 496 0
FLAG 320 496 0
FLAG 96 400 0
SYMBOL voltage 96 48 R0
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMATTR SpiceLine Rser=0.1
SYMBOL pnp 400 224 M180
SYMATTR InstName Q1
SYMATTR Value BC327-40
SYMBOL res 304 48 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res 448 384 R0
SYMATTR InstName R2
SYMATTR Value 27
SYMBOL npn 256 208 R0
SYMATTR InstName Q2
SYMATTR Value BC337-25
SYMBOL res 304 304 R0
SYMATTR InstName R3
SYMATTR Value 47
SYMBOL LED 304 416 R0
WINDOW 3 -113 36 Left 2
SYMATTR InstName D1
SYMATTR Value NSCW100
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL voltage 96 272 R0
WINDOW 3 -60 227 VLeft 2
WINDOW 123 0 0 Left 2
WINDOW 39 24 124 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 1m 20n 20n 1m 2m)
SYMATTR SpiceLine Rser=37
SYMBOL LED 448 320 R0
WINDOW 3 88 34 Left 2
SYMATTR InstName D2
SYMATTR Value NSCW100
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL LED 448 240 R0
WINDOW 3 88 31 Left 2
SYMATTR InstName D3
SYMATTR Value NSCW100
SYMATTR Description Diode
SYMATTR Type diode
TEXT 86 504 Left 2 !.tran 5m