Version 4
SHEET 1 880 680
WIRE 176 -64 128 -64
WIRE 272 -64 240 -64
WIRE 128 16 128 -64
WIRE 160 16 128 16
WIRE 272 16 272 -64
WIRE 272 16 240 16
WIRE 192 112 192 96
WIRE 16 128 -64 128
WIRE 128 128 128 16
WIRE 128 128 96 128
WIRE 160 128 128 128
WIRE -64 144 -64 128
WIRE 272 144 272 16
WIRE 272 144 224 144
WIRE 320 144 272 144
WIRE 160 160 128 160
WIRE 128 192 128 160
WIRE 192 192 192 176
WIRE -64 240 -64 224
WIRE 128 352 128 336
WIRE 256 352 256 336
WIRE 128 448 128 432
WIRE 256 448 256 432
FLAG 128 192 0
FLAG -64 240 0
FLAG 128 448 0
FLAG 256 448 0
FLAG 192 96 V+
FLAG 192 192 V-
FLAG 128 336 V+
FLAG 256 336 V-
SYMBOL Opamps\\UniversalOpamp2 192 144 R0
SYMATTR InstName U1
SYMATTR SpiceLine ilimit=50m rail=0 Vos=0 phimargin=45
SYMBOL voltage 256 336 R0
SYMATTR InstName V1
SYMATTR Value -15
SYMBOL voltage 128 336 R0
SYMATTR InstName V2
SYMATTR Value 15
SYMBOL voltage -64 128 R0
WINDOW 3 22 128 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V3
SYMATTR Value PULSE(0 2 10m 1n 1n 50m 100m)
SYMBOL Misc\\EuropeanResistor 144 32 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 220
SYMBOL Misc\\EuropeanResistor 0 144 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 47
SYMBOL cap 176 -48 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 10µ
TEXT -80 384 Left 2 !.tran 50m