Version 4
SHEET 1 2244 1160
WIRE 144 -144 128 -144
WIRE 368 -144 352 -144
WIRE 592 -144 576 -144
WIRE 816 -144 800 -144
WIRE 1024 -144 1008 -144
WIRE 1248 -144 1232 -144
WIRE 128 -128 128 -144
WIRE 352 -64 352 -144
WIRE 576 -64 576 -144
WIRE 800 -64 800 -144
WIRE 1008 -64 1008 -144
WIRE 1232 -64 1232 -144
WIRE 128 -16 128 -48
WIRE 128 128 128 64
WIRE 240 128 128 128
WIRE 448 128 240 128
WIRE 672 128 448 128
WIRE 880 128 672 128
WIRE 1104 128 880 128
WIRE 128 160 128 128
WIRE 352 160 352 0
WIRE 576 160 576 0
WIRE 800 160 800 0
WIRE 1008 160 1008 0
WIRE 1232 160 1232 0
WIRE 240 208 240 128
WIRE 240 208 192 208
WIRE 288 208 240 208
WIRE 448 208 448 128
WIRE 512 208 448 208
WIRE 672 208 672 128
WIRE 736 208 672 208
WIRE 880 208 880 128
WIRE 944 208 880 208
WIRE 1104 208 1104 128
WIRE 1168 208 1104 208
WIRE 128 288 128 256
WIRE 352 288 352 256
WIRE 576 288 576 256
WIRE 800 288 800 256
WIRE 1008 288 1008 256
WIRE 1232 288 1232 256
WIRE 128 384 128 368
WIRE 352 384 352 368
WIRE 576 384 576 368
WIRE 800 384 800 368
WIRE 1008 384 1008 368
WIRE 1232 384 1232 368
WIRE 592 464 576 464
WIRE 816 464 800 464
WIRE 1024 464 1008 464
WIRE 1248 464 1232 464
WIRE 576 544 576 464
WIRE 800 544 800 464
WIRE 1008 544 1008 464
WIRE 1232 544 1232 464
WIRE 448 736 448 208
WIRE 672 736 448 736
WIRE 880 736 672 736
WIRE 1104 736 880 736
WIRE 576 768 576 608
WIRE 800 768 800 608
WIRE 1008 768 1008 608
WIRE 1232 768 1232 608
WIRE 448 816 448 736
WIRE 512 816 448 816
WIRE 672 816 672 736
WIRE 736 816 672 816
WIRE 880 816 880 736
WIRE 944 816 880 816
WIRE 1104 816 1104 736
WIRE 1168 816 1104 816
WIRE 144 832 128 832
WIRE 128 848 128 832
WIRE 576 896 576 864
WIRE 800 896 800 864
WIRE 1008 896 1008 864
WIRE 1232 896 1232 864
WIRE 576 992 576 976
WIRE 800 992 800 976
WIRE 1008 992 1008 976
WIRE 1232 992 1232 976
FLAG 128 -144 VCC
FLAG 352 -144 VCC
FLAG 128 384 0
FLAG 352 384 0
FLAG 128 928 0
FLAG 128 832 VCC
FLAG 576 -144 VCC
FLAG 576 384 0
FLAG 800 -144 VCC
FLAG 800 384 0
FLAG 1008 -144 VCC
FLAG 1008 384 0
FLAG 1232 -144 VCC
FLAG 1232 384 0
FLAG 576 464 VCC
FLAG 576 992 0
FLAG 800 464 VCC
FLAG 800 992 0
FLAG 1008 464 VCC
FLAG 1008 992 0
FLAG 1232 464 VCC
FLAG 1232 992 0
SYMBOL npn 192 160 M0
SYMATTR InstName Q1
SYMATTR Value 2N3904
SYMBOL res 112 -144 R0
SYMATTR InstName R1
SYMATTR Value 150
SYMBOL res 112 -32 R0
SYMATTR InstName R2
SYMATTR Value {R}
SYMBOL res 112 272 R0
SYMATTR InstName R3
SYMATTR Value 51
SYMBOL res 336 272 R0
SYMATTR InstName R4
SYMATTR Value 51
SYMBOL npn 288 160 R0
SYMATTR InstName Q2
SYMATTR Value 2N3904
SYMBOL LED 336 -64 R0
SYMATTR InstName D1
SYMATTR Value QTLP690C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL voltage 128 832 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5V
SYMBOL res 560 272 R0
SYMATTR InstName R5
SYMATTR Value 51
SYMBOL npn 512 160 R0
SYMATTR InstName Q3
SYMATTR Value 2N3904
SYMBOL LED 560 -64 R0
SYMATTR InstName D2
SYMATTR Value QTLP690C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 784 272 R0
SYMATTR InstName R6
SYMATTR Value 51
SYMBOL npn 736 160 R0
SYMATTR InstName Q4
SYMATTR Value 2N3904
SYMBOL LED 784 -64 R0
SYMATTR InstName D3
SYMATTR Value QTLP690C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 992 272 R0
SYMATTR InstName R7
SYMATTR Value 51
SYMBOL npn 944 160 R0
SYMATTR InstName Q5
SYMATTR Value 2N3904
SYMBOL LED 992 -64 R0
SYMATTR InstName D4
SYMATTR Value QTLP690C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 1216 272 R0
SYMATTR InstName R8
SYMATTR Value 51
SYMBOL npn 1168 160 R0
SYMATTR InstName Q6
SYMATTR Value 2N3904
SYMBOL LED 1216 -64 R0
SYMATTR InstName D5
SYMATTR Value QTLP690C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 560 880 R0
SYMATTR InstName R9
SYMATTR Value 51
SYMBOL npn 512 768 R0
SYMATTR InstName Q7
SYMATTR Value 2N3904
SYMBOL LED 560 544 R0
SYMATTR InstName D6
SYMATTR Value QTLP690C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 784 880 R0
SYMATTR InstName R10
SYMATTR Value 51
SYMBOL npn 736 768 R0
SYMATTR InstName Q8
SYMATTR Value 2N3904
SYMBOL LED 784 544 R0
SYMATTR InstName D7
SYMATTR Value QTLP690C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 992 880 R0
SYMATTR InstName R11
SYMATTR Value 51
SYMBOL npn 944 768 R0
SYMATTR InstName Q9
SYMATTR Value 2N3904
SYMBOL LED 992 544 R0
SYMATTR InstName D8
SYMATTR Value QTLP690C
SYMATTR Description Diode
SYMATTR Type diode
SYMBOL res 1216 880 R0
SYMATTR InstName R12
SYMATTR Value 51
SYMBOL npn 1168 768 R0
SYMATTR InstName Q10
SYMATTR Value 2N3904
SYMBOL LED 1216 544 R0
SYMATTR InstName D9
SYMATTR Value QTLP690C
SYMATTR Description Diode
SYMATTR Type diode
TEXT 104 976 Left 0 !.op
TEXT 104 1000 Left 0 !.step param R 10 2k 10