Version 4
SHEET 1 880 680
WIRE 432 32 208 32
WIRE 432 64 432 32
WIRE 0 80 -32 80
WIRE 80 80 64 80
WIRE 352 80 160 80
WIRE 208 144 208 32
WIRE 176 160 144 160
WIRE 352 176 352 80
WIRE 352 176 240 176
WIRE 528 176 352 176
WIRE 560 176 528 176
WIRE -32 192 -32 80
WIRE 32 192 -32 192
WIRE 176 192 32 192
WIRE 144 272 144 160
WIRE 240 272 144 272
WIRE 352 272 352 176
WIRE 352 272 320 272
WIRE -32 288 -32 192
WIRE 32 288 32 192
WIRE 144 320 144 272
WIRE 208 352 208 208
WIRE 288 352 208 352
WIRE 288 368 288 352
WIRE -32 480 -32 368
WIRE 32 480 32 352
WIRE 32 480 -32 480
WIRE 144 480 144 400
WIRE 144 480 32 480
WIRE 288 480 288 448
WIRE 288 480 144 480
WIRE 432 480 432 144
WIRE 432 480 288 480
WIRE 288 512 288 480
FLAG 288 512 0
FLAG 528 176 out
SYMBOL Opamps\\LT1007 208 112 R0
SYMATTR InstName U1
SYMBOL Misc\\EuropeanResistor 64 96 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R1
SYMATTR Value 10200
SYMBOL Misc\\EuropeanResistor -16 384 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R2
SYMATTR Value 10200
SYMBOL Misc\\EuropeanResistor 160 416 R180
WINDOW 0 31 76 Left 2
WINDOW 3 31 40 Left 2
SYMATTR InstName R3
SYMATTR Value 47k
SYMBOL Misc\\EuropeanResistor 224 288 R270
WINDOW 0 27 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName R4
SYMATTR Value 100k
SYMBOL cap 0 96 R270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 3n
SYMBOL cap 48 352 R180
WINDOW 0 24 56 Left 2
WINDOW 3 24 8 Left 2
SYMATTR InstName C2
SYMATTR Value 3n
SYMBOL voltage 432 48 R0
WINDOW 0 53 51 Bottom 2
WINDOW 3 55 82 Bottom 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL voltage 288 464 R180
WINDOW 0 -60 58 Top 2
WINDOW 3 -60 27 Top 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 12
TEXT -280 104 Left 2 !.tran 0.05 startup