Version 4
SHEET 1 880 680
WIRE 48 96 -80 96
WIRE 144 96 48 96
WIRE 336 96 240 96
WIRE 336 144 336 96
WIRE 192 176 192 160
WIRE 192 176 48 176
WIRE 192 192 192 176
FLAG 192 256 0
FLAG 336 224 0
FLAG -80 176 0
SYMBOL npn 144 160 R270
SYMATTR InstName Q1
SYMATTR Value 2N2222
SYMBOL res 32 80 R0
SYMATTR InstName R1
SYMATTR Value 270
SYMBOL cap 176 192 R0
SYMATTR InstName C1
SYMATTR Value 470u
SYMBOL res 320 128 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL voltage -80 80 R0
WINDOW 123 24 124 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value SINE(5 1)
SYMATTR Value2 AC 1
TEXT -114 280 Left 2 !.ac oct 100 0.1 100k