Version 4
SHEET 1 880 680
WIRE -512 -160 -640 -160
WIRE -400 -160 -512 -160
WIRE -176 -160 -400 -160
WIRE 128 -160 -176 -160
WIRE 160 -160 128 -160
WIRE 304 -160 256 -160
WIRE -176 -144 -176 -160
WIRE 304 -96 304 -160
WIRE -512 -80 -512 -160
WIRE 0 -64 -176 -64
WIRE 208 -64 208 -96
WIRE 208 -64 80 -64
WIRE -80 -16 -448 -16
WIRE 80 -16 -80 -16
WIRE -80 0 -80 -16
WIRE 432 0 0 0
WIRE 416 16 32 16
WIRE 80 32 80 -16
WIRE 304 32 304 -16
WIRE 304 32 80 32
WIRE 128 64 128 -160
WIRE 128 64 64 64
WIRE 304 64 304 32
WIRE 128 80 128 64
WIRE 32 96 32 16
WIRE 96 96 32 96
WIRE -80 112 -80 80
WIRE 16 112 -80 112
WIRE 192 112 160 112
WIRE -80 128 -80 112
WIRE 16 128 16 112
WIRE 96 128 16 128
WIRE 192 128 192 112
WIRE 208 128 192 128
WIRE 304 128 288 128
WIRE 416 128 416 16
WIRE 416 128 304 128
WIRE -640 144 -640 -160
WIRE 128 160 128 144
WIRE 192 160 128 160
WIRE 64 176 64 64
WIRE 128 176 64 176
WIRE -176 192 -176 -64
WIRE 128 192 128 176
WIRE 304 192 288 192
WIRE 432 192 432 0
WIRE 432 192 304 192
WIRE -400 208 -400 -160
WIRE 0 208 0 0
WIRE 96 208 0 208
WIRE 208 208 176 208
WIRE 288 208 288 192
WIRE -448 224 -448 -16
WIRE -432 224 -448 224
WIRE -80 224 -80 208
WIRE 16 224 -80 224
WIRE 176 224 176 208
WIRE 176 224 160 224
WIRE -320 240 -368 240
WIRE 16 240 16 224
WIRE 96 240 16 240
WIRE -512 256 -512 0
WIRE -432 256 -512 256
WIRE -80 256 -80 224
WIRE 304 256 256 256
WIRE 432 256 304 256
WIRE 128 272 128 256
WIRE 192 272 192 160
WIRE 192 272 128 272
WIRE 64 288 64 176
WIRE 128 288 64 288
WIRE 128 304 128 288
WIRE 96 320 48 320
WIRE -512 336 -512 256
WIRE -240 336 -240 240
WIRE 16 336 -80 336
WIRE 256 336 160 336
WIRE 16 352 16 336
WIRE 96 352 16 352
WIRE -80 384 -80 336
WIRE 128 384 128 368
WIRE 192 384 192 272
WIRE 192 384 128 384
WIRE 48 400 48 320
WIRE 432 400 432 256
WIRE 432 400 48 400
WIRE -640 464 -640 224
WIRE -512 464 -512 416
WIRE -512 464 -640 464
WIRE -400 464 -400 272
WIRE -400 464 -512 464
WIRE -240 464 -240 416
WIRE -240 464 -400 464
WIRE -176 464 -176 288
WIRE -176 464 -240 464
WIRE -80 464 -176 464
WIRE 128 464 128 384
WIRE 128 464 -80 464
WIRE 304 464 304 320
WIRE 304 464 128 464
WIRE -640 480 -640 464
FLAG -640 480 0
SYMBOL cap 288 256 R0
SYMATTR InstName C1
SYMATTR Value 102
SYMBOL cap 288 192 R0
SYMATTR InstName C2
SYMATTR Value 99
SYMBOL cap 288 128 R0
SYMATTR InstName C3
SYMATTR Value 100
SYMBOL cap 288 64 R0
SYMATTR InstName C4
SYMATTR Value 101
SYMBOL voltage -640 128 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 19
SYMBOL res -96 368 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL res -96 240 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res -96 112 R0
SYMATTR InstName R3
SYMATTR Value 1k
SYMBOL res -96 -16 R0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL Opamps\\LT1001 128 272 R0
SYMATTR InstName U1
SYMBOL Opamps\\LT1001 128 160 R0
SYMATTR InstName U2
SYMBOL Opamps\\LT1001 128 48 R0
SYMATTR InstName U3
SYMBOL res 192 144 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R5
SYMATTR Value 470
SYMBOL res 192 224 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R6
SYMATTR Value 470
SYMBOL res 272 352 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R7
SYMATTR Value 470
SYMBOL res 288 -112 R0
SYMATTR InstName R8
SYMATTR Value 2
SYMATTR SpiceLine pwr=17
SYMBOL pnp 256 -96 M270
SYMATTR InstName Q2
SYMBOL res 96 -80 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R9
SYMATTR Value 100
SYMBOL npn -240 192 R0
SYMATTR InstName Q1
SYMBOL res -192 -160 R0
SYMATTR InstName R10
SYMATTR Value 1k
SYMBOL Opamps\\LT1001 -400 176 R0
SYMATTR InstName U4
SYMBOL res -528 -96 R0
SYMATTR InstName R11
SYMATTR Value 1k5
SYMBOL res -528 320 R0
SYMATTR InstName R12
SYMATTR Value 4k7
SYMBOL res -256 320 R0
SYMATTR InstName R14
SYMATTR Value 470
SYMBOL res -224 224 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R13
SYMATTR Value 4k7
TEXT -674 504 Left 2 !.tran 100 startup