Version 4
SHEET 1 1368 680
WIRE 112 -64 -256 -64
WIRE 288 -64 112 -64
WIRE 448 -64 288 -64
WIRE 736 -64 448 -64
WIRE 832 -64 736 -64
WIRE 1232 -64 832 -64
WIRE 288 -48 288 -64
WIRE 448 -48 448 -64
WIRE 1232 -48 1232 -64
WIRE 736 -32 736 -64
WIRE 112 -16 112 -64
WIRE 832 0 832 -64
WIRE 448 48 448 32
WIRE 544 48 448 48
WIRE 576 48 544 48
WIRE 736 48 736 32
WIRE 736 48 720 48
WIRE 768 48 736 48
WIRE 1232 48 1232 16
WIRE 288 64 288 32
WIRE 368 64 288 64
WIRE 288 80 288 64
WIRE 448 80 448 48
WIRE -256 96 -256 -64
WIRE 832 112 832 96
WIRE 112 128 112 64
WIRE 128 128 112 128
WIRE 224 128 208 128
WIRE 368 128 368 64
WIRE 384 128 368 128
WIRE 1232 144 1232 128
WIRE 16 160 0 160
WIRE 112 160 112 128
WIRE 112 160 96 160
WIRE 0 192 0 160
WIRE 288 192 288 176
WIRE 448 192 448 176
WIRE 448 192 288 192
WIRE 960 192 944 192
WIRE 1056 192 1040 192
WIRE 1152 192 1120 192
WIRE 1168 192 1152 192
WIRE 112 208 112 160
WIRE 224 208 224 128
WIRE 448 208 448 192
WIRE 832 208 832 192
WIRE 1152 224 1152 192
WIRE -160 240 -176 240
WIRE -64 240 -80 240
WIRE -256 304 -256 176
WIRE 0 304 0 288
WIRE 0 304 -256 304
WIRE 112 304 112 272
WIRE 112 304 0 304
WIRE 224 304 224 288
WIRE 224 304 112 304
WIRE 448 304 448 288
WIRE 448 304 224 304
WIRE 832 304 832 272
WIRE 832 304 448 304
WIRE 1152 304 1152 288
WIRE 1152 304 832 304
WIRE 1232 304 1232 240
WIRE 1232 304 1152 304
WIRE -256 320 -256 304
WIRE -176 336 -176 240
WIRE 544 336 544 48
WIRE 544 336 -176 336
WIRE 944 336 944 192
WIRE 944 336 544 336
FLAG -256 320 0
SYMBOL npn 224 80 R0
SYMATTR InstName Q1
SYMATTR Value BC847B
SYMBOL npn 384 80 R0
SYMATTR InstName Q2
SYMATTR Value BC847B
SYMBOL res 128 -32 M0
SYMATTR InstName R1
SYMATTR Value 430k
SYMBOL res 432 -64 R0
SYMATTR InstName R2
SYMATTR Value 18k
SYMBOL cap 96 272 M180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C1
SYMATTR Value 4µ7
SYMBOL voltage -256 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 5V
SYMBOL res 432 192 R0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res 224 144 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 1000k
SYMBOL cap 720 64 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C3
SYMATTR Value 220n
SYMBOL res 816 96 R0
SYMATTR InstName R6
SYMATTR Value 1k8
SYMBOL LED 848 208 M0
SYMATTR InstName D1
SYMATTR Value QTLP690C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL cap 1056 176 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 150n
SYMBOL res 1216 32 R0
SYMATTR InstName R8
SYMATTR Value 1k8
SYMBOL LED 1216 -48 R0
SYMATTR InstName D2
SYMATTR Value QTLP690C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 1056 176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 68k
SYMBOL res 672 32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R10
SYMATTR Value 68k
SYMBOL diode 1168 288 R180
WINDOW 0 -37 7 Left 2
WINDOW 3 36 9 Left 2
SYMATTR InstName D3
SYMATTR Value 1N4148
SYMBOL pnp 768 96 M180
WINDOW 0 52 65 Left 2
WINDOW 3 42 33 Left 2
SYMATTR InstName Q3
SYMATTR Value BC857B
SYMBOL diode 752 32 R180
WINDOW 0 24 64 Left 2
WINDOW 3 68 63 Left 2
SYMATTR InstName D4
SYMATTR Value 1N4148
SYMBOL res 272 48 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R5
SYMATTR Value 100k
SYMBOL res 112 176 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R7
SYMATTR Value 110k
SYMBOL npn -64 192 R0
SYMATTR InstName Q5
SYMATTR Value BC847B
SYMBOL res -64 256 M270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R11
SYMATTR Value 470k
SYMBOL res 208 304 M180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R12
SYMATTR Value 470k
SYMBOL npn 1168 144 R0
SYMATTR InstName Q4
SYMATTR Value BC847B
TEXT -210 0 Left 2 !.tran 4.5 startup