Version 4
SHEET 1 1808 680
WIRE 1120 -32 1120 -48
WIRE 272 -16 272 -48
WIRE 144 0 144 -48
WIRE 912 48 912 -48
WIRE 1120 64 1120 48
WIRE 272 80 272 64
WIRE 368 80 272 80
WIRE 272 112 272 80
WIRE 368 112 368 80
WIRE -304 160 -336 160
WIRE -208 160 -304 160
WIRE -80 160 -128 160
WIRE 48 160 -16 160
WIRE 208 160 48 160
WIRE 480 176 480 -48
WIRE -336 192 -336 160
WIRE 48 192 48 160
WIRE 672 192 656 192
WIRE 784 192 752 192
WIRE 816 192 784 192
WIRE 912 192 912 128
WIRE 912 192 896 192
WIRE 1072 192 912 192
WIRE 272 224 272 208
WIRE 416 224 272 224
WIRE 912 240 912 192
WIRE 48 288 48 272
WIRE 144 288 144 80
WIRE 144 288 48 288
WIRE 176 288 144 288
WIRE 272 288 272 224
WIRE 272 288 240 288
WIRE 368 288 368 176
WIRE 480 288 480 272
WIRE 480 288 368 288
WIRE 560 288 480 288
WIRE 656 288 656 192
WIRE 656 288 624 288
WIRE 848 288 656 288
WIRE 272 304 272 288
WIRE 480 304 480 288
WIRE -336 320 -336 272
WIRE 784 320 784 192
WIRE 272 400 272 384
WIRE 480 400 480 384
WIRE 784 400 784 384
WIRE 912 400 912 336
FLAG 1120 64 0
FLAG 272 400 0
FLAG 1120 -48 5V
FLAG 272 -48 5V
FLAG -336 320 0
FLAG 912 -48 5V
FLAG 912 400 0
FLAG -304 160 fin
FLAG 1072 192 fout
FLAG 144 -48 5V
FLAG 480 -48 5V
FLAG 480 400 0
FLAG 784 400 0
SYMBOL voltage -336 176 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR InstName V1
SYMATTR Value SINE(0 100m 12000k)
SYMBOL res 256 288 R0
SYMATTR InstName R1
SYMATTR Value 4.7k
SYMBOL cap -80 144 M90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 10p
SYMBOL voltage 1120 -48 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL npn 848 240 R0
SYMATTR InstName Q2
SYMATTR Value BFR93A
SYMBOL cap 624 272 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 10n
SYMBOL res 912 176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R4
SYMATTR Value 22k
SYMBOL res 896 32 R0
SYMATTR InstName R5
SYMATTR Value 1k
SYMBOL res -224 144 M90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R6
SYMATTR Value 470k
SYMBOL res 128 -16 R0
SYMATTR InstName R8
SYMATTR Value 47k
SYMBOL npn 208 112 R0
WINDOW 0 73 -3 Left 2
WINDOW 3 32 43 Left 2
SYMATTR InstName Q3
SYMATTR Value BFR93A
SYMBOL res 32 176 R0
SYMATTR InstName R11
SYMATTR Value 47k
SYMBOL cap 240 272 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 10n
SYMBOL npn 416 176 R0
WINDOW 0 73 -3 Left 2
WINDOW 3 32 43 Left 2
SYMATTR InstName Q4
SYMATTR Value BFR93A
SYMBOL res 464 288 R0
SYMATTR InstName R12
SYMATTR Value 470
SYMBOL cap 352 112 R0
SYMATTR InstName C6
SYMATTR Value 10n
SYMBOL res 768 176 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R2
SYMATTR Value 33k
SYMBOL cap 800 320 M0
SYMATTR InstName C2
SYMATTR Value 10n
SYMBOL ind 256 -32 R0
SYMATTR InstName L1
SYMATTR Value 100µ
SYMATTR SpiceLine Rser=1 Rpar=10k Cpar=1p
TEXT -344 0 Left 2 !.tran 0 20u 19u 1n
TEXT -344 32 Left 2 !;ac dec 100 1000k 100000k