Version 4 SHEET 1 888 1240 WIRE -560 592 -720 592 WIRE -416 592 -560 592 WIRE -176 592 -416 592 WIRE -48 592 -176 592 WIRE -720 624 -720 592 WIRE -416 624 -416 592 WIRE -176 624 -176 592 WIRE -560 640 -560 592 WIRE -48 640 -48 592 WIRE -720 736 -720 704 WIRE -560 736 -560 704 WIRE -416 736 -416 704 WIRE -416 736 -560 736 WIRE -176 736 -176 704 WIRE -48 736 -48 704 WIRE -48 736 -176 736 WIRE -560 768 -560 736 WIRE -48 768 -48 736 WIRE -560 880 -560 848 WIRE -464 880 -560 880 WIRE -336 880 -464 880 WIRE -160 880 -256 880 WIRE -48 880 -48 848 WIRE -48 880 -160 880 WIRE -464 912 -464 880 WIRE -160 912 -160 880 WIRE -560 976 -560 880 WIRE -48 976 -48 880 WIRE -464 1024 -464 992 WIRE -464 1024 -496 1024 WIRE -416 1024 -464 1024 WIRE -336 1024 -256 880 WIRE -336 1024 -352 1024 WIRE -256 1024 -336 880 WIRE -240 1024 -256 1024 WIRE -160 1024 -160 992 WIRE -160 1024 -176 1024 WIRE -112 1024 -160 1024 WIRE -560 1104 -560 1072 WIRE -48 1104 -48 1072 FLAG -48 1104 0 FLAG -560 1104 0 FLAG -720 736 0 SYMBOL VOLTAGE -720 608 R0 SYMATTR InstName V1 SYMATTR Value 9 SYMBOL NPN -112 976 R0 SYMATTR InstName Q1 SYMATTR Value 2N3904 SYMBOL npn -496 976 M0 SYMATTR InstName Q2 SYMATTR Value 2N3904 SYMBOL LED -576 640 R0 SYMATTR InstName D1 SYMATTR Value QTLP690C SYMBOL LED -64 640 R0 SYMATTR InstName D2 SYMATTR Value QTLP690C SYMBOL Misc\\EuropeanResistor -576 752 R0 SYMATTR InstName R1 SYMATTR Value 1k SYMBOL Misc\\EuropeanResistor -64 752 R0 SYMATTR InstName R2 SYMATTR Value 1k SYMBOL Misc\\EuropeanResistor -480 896 R0 SYMATTR InstName R3 SYMATTR Value 22k SYMBOL Misc\\EuropeanResistor -176 896 R0 SYMATTR InstName R4 SYMATTR Value 22k SYMBOL Misc\\EuropeanResistor -432 608 R0 SYMATTR InstName R5 SYMATTR Value 2.21k SYMBOL Misc\\EuropeanResistor -192 608 R0 SYMATTR InstName R6 SYMATTR Value 2.2k SYMBOL polcap -352 1008 R90 WINDOW 0 0 32 VBottom 2 WINDOW 3 32 32 VTop 2 SYMATTR InstName C1 SYMATTR Value 47µ SYMBOL polcap -240 1040 R270 WINDOW 0 32 32 VTop 2 WINDOW 3 0 32 VBottom 2 SYMATTR InstName C2 SYMATTR Value 47µ TEXT -728 504 Left 2 !.tran 10 startup TEXT -296 1152 Top 1 ;This example schematic is supplied for informational/educational purposes only.