Version 4
SHEET 1 1400 680
WIRE 576 -160 368 -160
WIRE 768 -160 576 -160
WIRE 1136 -160 768 -160
WIRE 368 -112 368 -160
WIRE 576 -112 576 -160
WIRE 768 -112 768 -160
WIRE 208 32 80 32
WIRE 624 32 208 32
WIRE 768 32 768 -32
WIRE 768 32 704 32
WIRE 880 32 768 32
WIRE 960 32 944 32
WIRE 976 32 960 32
WIRE 208 64 208 32
WIRE 80 80 80 32
WIRE 368 96 368 -32
WIRE 448 96 368 96
WIRE 576 96 576 -32
WIRE 656 96 576 96
WIRE 960 112 960 32
WIRE 368 128 368 96
WIRE 576 128 576 96
WIRE 768 128 768 32
WIRE 1136 128 1136 -160
WIRE -48 176 -256 176
WIRE 208 176 208 144
WIRE 208 176 -48 176
WIRE 304 176 208 176
WIRE 448 176 448 96
WIRE 512 176 448 176
WIRE 656 176 656 96
WIRE 704 176 656 176
WIRE -256 208 -256 176
WIRE 80 272 80 144
WIRE 368 272 368 224
WIRE 368 272 80 272
WIRE 576 272 576 224
WIRE 576 272 368 272
WIRE 768 272 768 224
WIRE 768 272 576 272
WIRE 960 272 960 192
WIRE 960 272 768 272
WIRE 1136 272 1136 208
WIRE 1136 272 960 272
WIRE 1136 304 1136 272
WIRE -256 336 -256 288
FLAG 976 32 out
FLAG -48 176 in
FLAG -256 336 0
FLAG 1136 304 0
SYMBOL voltage -256 192 R0
WINDOW 123 24 152 Left 2
WINDOW 39 24 180 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(0 300m 50)
SYMATTR Value2 AC 100m
SYMATTR SpiceLine Rser=100MEG
SYMBOL npn 304 128 R0
SYMATTR InstName Q1
SYMATTR Value BC547B
SYMBOL npn 512 128 R0
SYMATTR InstName Q2
SYMATTR Value BC547B
SYMBOL npn 704 128 R0
SYMATTR InstName Q3
SYMATTR Value BC547B
SYMBOL res 352 -128 R0
SYMATTR InstName R1
SYMATTR Value 100k
SYMBOL res 560 -128 R0
SYMATTR InstName R2
SYMATTR Value 82k
SYMBOL res 752 -128 R0
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL res 192 48 R0
SYMATTR InstName R4
SYMATTR Value 1Meg
SYMBOL res 720 16 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R5
SYMATTR Value 1Meg
SYMBOL cap 64 80 R0
SYMATTR InstName C1
SYMATTR Value 100n
SYMBOL cap 944 16 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 22µ
SYMBOL voltage 1136 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value 9
SYMBOL res 944 96 R0
SYMATTR InstName R6
SYMATTR Value 10k
TEXT -272 432 Left 2 !.tran 300m