Version 4
SHEET 1 1716 1236
WIRE -288 0 -288 -32
WIRE -288 32 -288 0
WIRE -288 144 -288 112
WIRE -288 176 -288 144
WIRE -288 288 -288 240
WIRE -240 0 -288 0
WIRE -224 144 -288 144
WIRE -224 176 -224 144
WIRE -224 288 -224 240
WIRE -160 0 -176 0
WIRE -160 32 -160 0
WIRE -112 144 -224 144
WIRE -96 272 -96 192
WIRE -96 400 -96 352
WIRE -48 208 -48 192
WIRE 32 144 -32 144
WIRE 32 240 32 144
WIRE 32 400 32 320
WIRE 112 288 80 288
WIRE 224 288 192 288
WIRE 336 240 272 240
WIRE 336 288 304 288
WIRE 336 288 336 240
WIRE 400 64 400 -32
WIRE 400 160 400 64
WIRE 400 288 336 288
WIRE 400 288 400 160
WIRE 400 368 400 320
WIRE 448 -32 400 -32
WIRE 448 160 400 160
WIRE 448 288 400 288
WIRE 448 320 400 320
WIRE 464 64 400 64
WIRE 576 -32 528 -32
WIRE 576 64 528 64
WIRE 576 64 576 -32
WIRE 576 160 512 160
WIRE 576 160 576 64
WIRE 576 304 512 304
WIRE 576 304 576 160
WIRE 624 304 576 304
WIRE 624 640 624 592
WIRE 624 752 624 720
WIRE 624 896 624 832
WIRE 672 304 624 304
WIRE 672 592 624 592
WIRE 752 32 752 16
WIRE 752 144 752 112
WIRE 800 304 752 304
WIRE 800 432 800 304
WIRE 800 592 752 592
WIRE 800 592 800 464
WIRE 848 304 800 304
WIRE 848 592 800 592
WIRE 864 432 800 432
WIRE 864 464 800 464
WIRE 912 32 912 16
WIRE 912 144 912 112
WIRE 976 304 928 304
WIRE 976 448 928 448
WIRE 976 448 976 304
WIRE 976 528 976 448
WIRE 976 592 928 592
WIRE 976 592 976 528
WIRE 1040 528 976 528
WIRE 1072 304 1072 256
WIRE 1072 336 1072 304
WIRE 1072 432 1072 400
WIRE 1120 304 1072 304
WIRE 1152 528 1120 528
WIRE 1216 480 1216 416
WIRE 1216 624 1216 576
WIRE 1216 768 1216 704
WIRE 1312 304 1200 304
WIRE 1312 320 1312 304
WIRE 1312 416 1216 416
WIRE 1312 416 1312 384
FLAG -288 288 0
FLAG -48 208 0
FLAG 400 368 0
FLAG -96 400 0
FLAG 624 304 vdelay
FLAG -160 32 0
FLAG -224 288 0
FLAG 32 400 0
FLAG 752 144 0
FLAG 912 144 0
FLAG 752 16 VCC
FLAG 912 16 VEE
FLAG 480 272 VCC
FLAG 480 336 VEE
FLAG 896 416 VCC
FLAG 896 480 VEE
FLAG 1216 768 0
FLAG -288 -32 VCC
FLAG 1072 432 0
FLAG 1072 256 VCC
FLAG 624 896 0
SYMBOL res -304 16 R0
SYMATTR InstName R1
SYMATTR Value 120
SYMBOL zener -272 240 R180
WINDOW 0 47 65 Left 0
WINDOW 3 45 33 Left 0
SYMATTR InstName D1
SYMATTR Value BZX84C8V2L
SYMBOL sw -16 144 M270
WINDOW 0 74 70 VLeft 0
WINDOW 3 52 69 VLeft 0
SYMATTR InstName S1
SYMATTR Value powersw
SYMBOL voltage -96 256 R0
WINDOW 0 -75 61 Left 0
WINDOW 3 -408 95 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 50ms 0.125ms 0.125ms)
SYMBOL res 208 272 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 42 71 VTop 0
SYMATTR InstName R2
SYMATTR Value 560K
SYMBOL cap 512 144 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C1
SYMATTR Value {Capx}
SYMBOL diode 528 48 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName D2
SYMATTR Value 1N914
SYMBOL cap -176 -16 R90
WINDOW 0 -22 -2 VBottom 0
WINDOW 3 -23 -24 VTop 0
SYMATTR InstName C2
SYMATTR Value 0.01µF
SYMBOL cap -240 176 R0
WINDOW 0 49 12 Left 0
WINDOW 3 49 37 Left 0
SYMATTR InstName C3
SYMATTR Value 0.082µF
SYMBOL potentiometer_standard 16 224 R0
WINDOW 0 31 132 Left 0
WINDOW 3 30 158 Left 0
WINDOW 39 83 138 Invisible 0
WINDOW 38 84 90 Invisible 0
SYMATTR InstName U2
SYMATTR Value Rtot=1MEG wiper=.15
SYMBOL potentiometer_standard 208 304 R270
WINDOW 0 132 -113 VRight 0
WINDOW 3 104 -109 VRight 0
WINDOW 39 141 3 Invisible 0
WINDOW 38 172 2 Invisible 0
SYMATTR InstName U3
SYMATTR Value Rtot=100K wiper=.125
SYMBOL res 432 -16 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R3
SYMATTR Value 560K
SYMBOL voltage 752 16 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V3
SYMATTR Value +12VDC
SYMBOL voltage 912 16 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V4
SYMATTR Value -12VDC
SYMBOL xopamph 480 240 R0
WINDOW 0 36 86 Left 0
WINDOW 3 34 113 Left 0
SYMATTR InstName U4
SYMATTR Value LF357/NS
SYMBOL res 656 320 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R4
SYMATTR Value 1K
SYMBOL res 832 320 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R5
SYMATTR Value 1K
SYMBOL res 832 608 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R6
SYMATTR Value 1K
SYMBOL res 656 608 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R7
SYMATTR Value 330
SYMBOL xopamph 896 384 R0
WINDOW 0 -221 7 Left 0
WINDOW 3 -220 37 Left 0
SYMATTR InstName U1
SYMATTR Value LF357/NS
SYMBOL voltage 624 624 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 0 38 27 Left 0
WINDOW 3 38 71 Left 0
SYMATTR InstName V5
SYMATTR Value 0.5
SYMBOL res 1136 512 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R8
SYMATTR Value 1K
SYMBOL npn 1152 480 R0
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL res 1200 608 R0
SYMATTR InstName R9
SYMATTR Value 8.2
SYMBOL res 1104 320 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R10
SYMATTR Value 33
SYMBOL zener 1088 400 R180
WINDOW 0 -35 29 Left 0
WINDOW 3 -147 2 Left 0
SYMATTR InstName D3
SYMATTR Value BZX84C8V2L
SYMBOL LED 1296 320 R0
SYMATTR InstName D4
SYMATTR Value LXHL-BW02
SYMBOL bv 624 736 R0
WINDOW 123 44 93 Left 0
WINDOW 3 46 64 Left 0
SYMATTR Value2 COS(2*PI*white(time*0.93e9+0.5))
SYMATTR Value V=0.25*SQRT(-2*LN(0.999997*white(time*1.07*ft)+0.50001))*
SYMATTR InstName B1
TEXT -312 512 Left 0 !.include potentiometer_standard.lib
TEXT -312 464 Left 0 !.tran 0 50us 0 1us
TEXT -312 536 Left 0 !.model powersw sw (ron=0.1 roff=10meg vt=0.5 vh=-0.4)
TEXT -312 488 Left 0 !.param Capx=0.01uF
TEXT -312 560 Left 0 !.include LF357.mod
TEXT 712 656 Left 0 ;*set threshold current
TEXT 584 192 Left 0 ;*set time to turn on
TEXT 704 752 Left 0 ;AWGN
TEXT -312 584 Left 0 !.params ft=1e9