Version 4
SHEET 1 880 680
WIRE 160 -64 32 -64
WIRE 288 -64 160 -64
WIRE 288 -48 288 -64
WIRE 32 -32 32 -64
WIRE -80 64 -128 64
WIRE 112 64 0 64
WIRE 288 64 288 32
WIRE 160 112 160 -64
WIRE 112 128 112 64
WIRE 128 128 112 128
WIRE 272 144 192 144
WIRE 288 144 272 144
WIRE 384 144 368 144
WIRE 464 144 384 144
WIRE -288 160 -288 64
WIRE -80 160 -288 160
WIRE 32 160 32 48
WIRE 32 160 0 160
WIRE 128 160 32 160
WIRE -208 208 -208 64
WIRE 272 208 272 144
WIRE 272 208 -208 208
WIRE 32 224 32 160
WIRE 384 224 384 144
WIRE 112 240 112 128
WIRE 32 320 32 304
WIRE 112 320 112 304
WIRE 112 320 32 320
WIRE 160 320 160 176
WIRE 160 320 112 320
WIRE 384 320 384 304
WIRE 384 320 160 320
WIRE 384 336 384 320
FLAG 288 64 0
FLAG 384 336 0
FLAG 464 144 PulseOut
IOPIN 464 144 Out
SYMBOL Opamps\\LT1014 160 80 R0
WINDOW 3 29 112 Left 0
SYMATTR InstName U1
SYMBOL voltage 288 -64 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 12V
SYMBOL res 16 48 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 16 -48 R0
SYMATTR InstName R2
SYMATTR Value 100k
SYMBOL res 16 208 R0
SYMATTR InstName R3
SYMATTR Value 100k
SYMBOL res 368 208 R0
SYMATTR InstName R4
SYMATTR Value 10k
SYMBOL res 384 128 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R5
SYMATTR Value 12k
SYMBOL res 16 144 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R6
SYMATTR Value 10k
SYMBOL res -192 48 R90
WINDOW 0 -4 16 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName POT1
SYMATTR Value 500k
SYMBOL res -112 48 R90
WINDOW 0 0 56 Invisible 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R8
SYMATTR Value 500k
SYMBOL cap 96 240 R0
SYMATTR InstName C1
SYMATTR Value 33n
TEXT -268 344 Left 0 !.tran 1
TEXT 192 168 Left 0 ;LM324
TEXT -248 0 Left 0 ;1 MOhm