$ 1 32 0.00390625 0 5 50 Black 2048 1184 true

a 256 288 384 288 8 15 -15 1000000
> U1
r 384 96 224 96 0 15000
> R1
r 512 512 512 352 0 10000
> R3
r 512 800 512 640 0 10000
> R4
c 128 416 128 480 0 3E-05
> C1
g 128 480 128 544 0
w 128 96 128 256 0
w 512 352 512 288 0
w 512 96 384 96 0
w 512 512 512 576 0
g 512 800 512 864 0
w 512 288 512 96 0
w 384 288 512 288 0
w 512 576 512 640 0
w 256 320 224 320 0
w 224 320 224 576 0
w 224 576 512 576 0
r 704 288 544 288 0 1000
> R2
z 736 480 736 352 1 0.805904783 5 0.005 5E-06
> D1
g 736 480 736 544 0
R 320 224 320 160 0 0 1 15 0 0 0.5 
R 320 352 320 416 0 0 1 -15 0 0 0.5 
w 544 288 512 288 0
w 736 288 736 352 0
w 736 288 704 288 0
156 1056 288 1056 352 0
> U2
156 1056 480 1056 544 0
> U3
156 1056 672 1056 736 0
> U4
156 1056 864 1056 928 0
> U5
R 960 992 960 1056 0 0 1 5 0 0 0.5 
w 960 992 960 928 0
w 960 928 1056 928 0
w 1056 736 960 736 0
w 960 736 960 928 0
w 1056 544 960 544 0
w 960 544 960 736 0
w 1056 352 960 352 0
w 960 352 960 544 0
w 1056 320 1024 320 0
w 1024 320 1024 288 0
w 1024 288 736 288 0
w 1056 512 1024 512 0
w 1024 512 1024 320 0
w 1056 704 1024 704 0
w 1024 704 1024 512 0
w 1056 896 1024 896 0
w 1024 896 1024 704 0
w 1152 352 1184 352 0
w 1184 352 1184 224 0
w 1184 224 1056 224 0
w 1056 224 1056 288 0
w 1152 544 1184 544 0
w 1184 544 1184 416 0
w 1184 416 1056 416 0
w 1056 416 1056 480 0
w 1152 736 1184 736 0
w 1184 736 1184 608 0
w 1184 608 1056 608 0
w 1056 608 1056 672 0
w 1152 928 1184 928 0
w 1184 928 1184 800 0
w 1184 800 1056 800 0
w 1056 800 1056 864 0
I 1312 288 1408 288 0 2 5
> U6
I 1312 672 1408 672 0 2 5
> U7
w 1152 288 1312 288 0
w 1152 672 1312 672 0
162 1536 288 1632 288 1 2.1024259 1 1 0.1
162 1536 672 1632 672 1 2.1024259 1 1 0.1
162 1536 480 1632 480 1 2.1024259 1 0.1 0.1
162 1536 864 1632 864 1 2.1024259 1 0.1 0.1
g 1824 960 1824 1024 0
w 1824 960 1824 864 0
r 1760 288 1632 288 0 100
r 1760 480 1632 480 0 100
r 1760 672 1632 672 0 100
r 1760 864 1632 864 0 100
w 1760 288 1824 288 0
w 1824 480 1824 288 0
w 1760 480 1824 480 0
w 1824 672 1824 480 0
w 1760 672 1824 672 0
w 1824 864 1824 672 0
w 1760 864 1824 864 0
w 1536 288 1408 288 0
w 1536 672 1408 672 0
w 1536 480 1152 480 0
w 1536 864 1152 864 0
x 128 640 160 640 9 20 Op-Amp%20Astable%20Vibrator%20circuit
x 1568 928 1760 928 9 20 LEDs%20
x 128 704 160 704 9 20 Generates%201.0%20Hz%20clock%20signal
w 128 96 224 96 0
w 128 256 256 256 0
w 128 256 128 416 0
x 576 224 608 224 9 20 R2%20and%20D1%20limits%20the%20voltage%20output%20to%205v.%20