Version 4
SHEET 1 1084 680
WIRE -16 -304 -208 -304
WIRE 160 -304 -16 -304
WIRE 400 -304 160 -304
WIRE 784 -304 400 -304
WIRE -16 -288 -16 -304
WIRE 160 -288 160 -304
WIRE 400 -288 400 -304
WIRE 784 -288 784 -304
WIRE 400 -192 400 -208
WIRE 784 -192 784 -208
WIRE 784 -112 784 -128
WIRE 400 -64 400 -128
WIRE 496 -64 400 -64
WIRE 592 -64 496 -64
WIRE 720 -64 672 -64
WIRE 160 -16 160 -208
WIRE 336 -16 160 -16
WIRE -16 32 -16 -208
WIRE 48 32 -16 32
WIRE 96 32 48 32
WIRE -208 64 -208 -304
WIRE 48 128 48 32
WIRE 224 128 48 128
WIRE 496 128 496 -64
WIRE 496 128 304 128
WIRE -16 144 -16 32
WIRE -208 272 -208 144
WIRE -16 272 -16 224
WIRE -16 272 -208 272
WIRE 160 272 160 80
WIRE 160 272 -16 272
WIRE 192 272 160 272
WIRE 400 272 400 32
WIRE 400 272 192 272
WIRE 784 272 784 -16
WIRE 784 272 400 272
WIRE 192 288 192 272
FLAG 192 288 0
FLAG -528 144 0
FLAG -528 64 ULDR
SYMBOL Misc\\EuropeanResistor -32 128 R0
SYMATTR InstName R1
SYMATTR Value 15k
SYMBOL Misc\\EuropeanResistor -32 -304 R0
WINDOW 0 -55 51 Left 2
WINDOW 3 -116 -23 Left 2
SYMATTR InstName LDR
SYMATTR Value R=100R+300k*V(ULDR)
SYMBOL Misc\\EuropeanResistor 144 -304 R0
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor 384 -304 R0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL voltage -208 48 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 9
SYMBOL voltage -528 48 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value PULSE(0 1 0 1 1 0 2)
SYMBOL LED 384 -192 R0
SYMATTR InstName D2
SYMATTR Value NSPW500BS
SYMBOL npn 96 -16 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL npn 336 -64 R0
SYMATTR InstName Q2
SYMATTR Value BC547C
SYMBOL Misc\\EuropeanResistor 320 112 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 470k
SYMBOL Misc\\EuropeanResistor 768 -304 R0
SYMATTR InstName R7
SYMATTR Value 1k
SYMBOL npn 720 -112 R0
WINDOW 0 53 42 Left 2
SYMATTR InstName Q3
SYMATTR Value BC547C
SYMBOL LED 768 -192 R0
SYMATTR InstName D3
SYMATTR Value NSPW500BS
SYMBOL Misc\\EuropeanResistor 688 -80 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 27 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 100k
TEXT -240 312 Left 0 !.tran 5