Version 4
SHEET 1 880 680
WIRE 80 -96 -48 -96
WIRE 272 -96 80 -96
WIRE -48 -80 -48 -96
WIRE 80 -64 80 -96
WIRE 272 -64 272 -96
WIRE -48 32 -48 0
WIRE 272 80 272 16
WIRE 384 80 272 80
WIRE 480 80 448 80
WIRE 512 80 480 80
WIRE 624 80 512 80
WIRE 272 112 272 80
WIRE 512 112 512 80
WIRE 624 112 624 80
WIRE -112 160 -176 160
WIRE -80 160 -112 160
WIRE 80 160 80 16
WIRE 80 160 -16 160
WIRE 208 160 80 160
WIRE 272 224 272 208
WIRE 336 224 272 224
WIRE 416 224 400 224
WIRE 512 224 512 192
WIRE 624 224 624 176
WIRE -176 256 -176 160
WIRE 80 288 80 160
WIRE 272 288 272 224
WIRE 416 304 416 224
WIRE -176 400 -176 336
WIRE 80 400 80 368
WIRE 272 400 272 368
WIRE 416 400 416 384
FLAG 80 400 0
FLAG 272 400 0
FLAG -176 400 0
FLAG 512 224 0
FLAG -48 32 0
FLAG -112 160 in
FLAG 480 80 out
FLAG 624 224 0
FLAG 416 400 0
SYMBOL Misc\\EuropeanResistor 64 -80 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL Misc\\EuropeanResistor 64 272 R0
SYMATTR InstName R2
SYMATTR Value 4.7k
SYMBOL Misc\\EuropeanResistor 256 -80 R0
SYMATTR InstName R3
SYMATTR Value 470
SYMBOL Misc\\EuropeanResistor 256 272 R0
SYMATTR InstName R4
SYMATTR Value 150
SYMBOL npn 208 112 R0
SYMATTR InstName Q1
SYMATTR Value BC547B
SYMBOL voltage -176 240 R0
WINDOW 3 24 188 Left 0
WINDOW 123 24 132 Left 0
WINDOW 39 24 160 Left 0
SYMATTR InstName V1
SYMATTR Value SINE(0 50m 1meg)
SYMATTR Value2 AC 1
SYMATTR SpiceLine Rser=50
SYMBOL cap 384 96 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C1
SYMATTR Value 0.1µ
SYMBOL cap -80 176 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C2
SYMATTR Value 0.1µ
SYMBOL Misc\\EuropeanResistor 496 96 R0
SYMATTR InstName RL
SYMATTR Value 2.2k
SYMBOL voltage -48 -96 R0
SYMATTR InstName V2
SYMATTR Value 5
SYMBOL cap 608 112 R0
SYMATTR InstName CL
SYMATTR Value 10p
SYMBOL Misc\\EuropeanResistor 400 288 R0
SYMATTR InstName R5
SYMATTR Value 100
SYMBOL cap 336 240 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C3
SYMATTR Value 0.1µ
TEXT -272 -152 Left 0 !.ac dec 100 10k 10meg
TEXT -272 -112 Left 0 !.op
TEXT -272 -72 Left 0 ;.tran 10u