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Version 4
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SHEET 1 1380 724
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WIRE 512 -496 512 -512
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WIRE 512 -400 512 -432
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WIRE 512 -304 512 -336
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WIRE 16 -224 16 -256
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WIRE 512 -208 512 -240
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WIRE 16 -112 16 -144
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WIRE 240 -112 240 -144
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WIRE 512 -112 512 -144
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WIRE 512 -32 512 -48
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WIRE 160 0 -64 0
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WIRE 320 16 224 16
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WIRE 448 16 400 16
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WIRE 80 32 32 32
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WIRE 160 32 80 32
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WIRE 80 48 80 32
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WIRE 80 160 80 128
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WIRE 512 240 512 64
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WIRE 512 240 112 240
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WIRE -64 256 -64 0
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WIRE 48 256 -64 256
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WIRE 192 272 112 272
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WIRE 512 320 512 240
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WIRE -64 368 -64 256
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WIRE 48 368 -64 368
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WIRE 192 368 192 272
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WIRE 192 368 128 368
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WIRE 192 384 192 368
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WIRE 192 480 192 464
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WIRE 512 480 512 400
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FLAG 16 -112 0
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FLAG 16 -256 V+
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FLAG 192 -16 V+
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FLAG 192 48 0
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FLAG 512 480 0
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FLAG 32 32 VSIG
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FLAG 80 160 0
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FLAG 240 -112 0
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FLAG 240 -224 VSIG
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FLAG 192 480 0
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FLAG 80 288 V+
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FLAG 80 224 0
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FLAG 512 -512 V+
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SYMBOL voltage 16 -240 R0
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WINDOW 123 0 0 Left 2
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WINDOW 39 0 0 Left 2
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SYMATTR InstName V1
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SYMATTR Value 18V
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SYMBOL npn 448 -32 R0
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SYMATTR InstName Q1
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SYMATTR Value 2N3904
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SYMBOL res 496 304 R0
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SYMATTR InstName R1
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SYMATTR Value 10R
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SYMBOL res 96 144 R180
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WINDOW 0 36 76 Left 2
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WINDOW 3 36 40 Left 2
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SYMATTR InstName R2
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SYMATTR Value 10k
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SYMBOL voltage 240 -240 R0
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WINDOW 123 0 0 Left 2
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WINDOW 39 0 0 Left 2
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SYMATTR InstName V2
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SYMATTR Value ""
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SYMBOL Opamps\\opamp2 80 320 R180
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SYMATTR InstName U2
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SYMATTR Value LM324
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SYMBOL res 32 384 R270
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WINDOW 0 32 56 VTop 2
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WINDOW 3 0 56 VBottom 2
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SYMATTR InstName R3
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SYMATTR Value 180k
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SYMBOL res 176 368 R0
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SYMATTR InstName R4
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SYMATTR Value 20k
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SYMBOL Opamps\\opamp2 192 -48 R0
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SYMATTR InstName U1
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SYMATTR Value LM324
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SYMBOL res 416 0 R90
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WINDOW 0 0 56 VBottom 2
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WINDOW 3 32 56 VTop 2
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SYMATTR InstName R5
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SYMATTR Value 10k
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SYMBOL LED 496 -304 R0
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SYMATTR InstName D2
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SYMATTR Value LXHL-BW02
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SYMATTR Description Diode
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SYMATTR Type diode
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SYMBOL LED 496 -208 R0
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SYMATTR InstName D1
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SYMATTR Value LXHL-BW02
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SYMATTR Description Diode
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SYMATTR Type diode
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SYMBOL LED 496 -112 R0
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SYMATTR InstName D3
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SYMATTR Value LXHL-BW02
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SYMATTR Description Diode
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SYMATTR Type diode
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SYMBOL LED 496 -400 R0
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SYMATTR InstName D4
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SYMATTR Value LXHL-BW02
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SYMATTR Description Diode
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SYMATTR Type diode
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SYMBOL LED 496 -496 R0
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SYMATTR InstName D5
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SYMATTR Value LXHL-BW02
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SYMATTR Description Diode
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SYMATTR Type diode
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TEXT 136 112 Left 2 !.include LM324.txt
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TEXT -64 -48 Left 2 !.dc V2 0 3.3V 10mV
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