Version 4
SHEET 1 1684 1208
WIRE 64 192 -368 192
WIRE 352 192 64 192
WIRE 496 192 352 192
WIRE 896 192 496 192
WIRE 1184 192 896 192
WIRE 896 208 896 192
WIRE 64 272 64 192
WIRE 1184 272 1184 192
WIRE 896 288 896 272
WIRE 64 368 64 352
WIRE 288 368 64 368
WIRE 64 400 64 368
WIRE 896 400 896 368
WIRE 1184 400 1184 336
WIRE 352 416 352 192
WIRE 288 432 288 368
WIRE 320 432 288 432
WIRE 512 448 384 448
WIRE 832 448 592 448
WIRE 320 464 288 464
WIRE 64 544 64 480
WIRE 352 544 352 480
WIRE 896 544 896 496
WIRE 496 592 496 192
WIRE 496 592 352 592
WIRE 288 608 288 464
WIRE 288 608 -272 608
WIRE 1184 640 1184 480
WIRE 352 656 352 592
WIRE 288 672 288 608
WIRE 320 672 288 672
WIRE 752 688 384 688
WIRE 1120 688 832 688
WIRE 320 704 288 704
WIRE -272 720 -272 688
WIRE -368 800 -368 192
WIRE 80 800 -368 800
WIRE 80 864 80 800
WIRE -368 912 -368 800
WIRE 80 976 80 944
WIRE 288 976 288 704
WIRE 288 976 80 976
WIRE 80 1008 80 976
WIRE -368 1168 -368 992
WIRE 80 1168 80 1088
WIRE 352 1168 352 720
WIRE 1184 1168 1184 736
FLAG -272 720 0
FLAG 64 544 0
FLAG 80 1168 0
FLAG 352 1168 0
FLAG 352 544 0
FLAG 1184 1168 0
FLAG -368 1168 0
FLAG 896 544 0
SYMBOL npn 832 400 R0
SYMATTR InstName Q1
SYMATTR Value BC337-40
SYMBOL Opamps\\LT1006 352 384 R0
SYMATTR InstName U2
SYMBOL LED 880 208 R0
SYMATTR InstName D1
SYMATTR Value NSCW100
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL voltage -272 592 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName LM35
SYMATTR Value PULSE(0 3 0 5 5 0 10)
SYMBOL res 48 256 R0
SYMATTR InstName R1
SYMATTR Value 500
SYMBOL res 48 384 R0
SYMATTR InstName R2
SYMATTR Value 49500
SYMBOL res 64 848 R0
SYMATTR InstName R3
SYMATTR Value 500
SYMBOL res 64 992 R0
SYMATTR InstName R4
SYMATTR Value 332833
SYMBOL voltage -368 896 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL LED 1168 272 R0
SYMATTR InstName D2
SYMBOL OpAmps\\LT1006 352 624 R0
SYMATTR InstName U3
SYMBOL npn 1120 640 R0
SYMATTR InstName Q2
SYMBOL res 880 272 R0
SYMATTR InstName R6
SYMATTR Value 550
SYMBOL res 1168 384 R0
SYMATTR InstName R7
SYMATTR Value 550
SYMBOL res 848 672 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R8
SYMATTR Value 22000
SYMBOL res 608 432 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 22000
TEXT -402 1192 Left 2 !.tran 10