Version 4
SHEET 1 880 680
WIRE 80 0 -48 0
WIRE 224 0 80 0
WIRE 80 32 80 0
WIRE -48 96 -48 0
WIRE 80 128 80 112
WIRE 160 128 80 128
WIRE 16 176 16 128
WIRE -48 256 -48 176
WIRE 16 256 -48 256
WIRE 224 256 224 176
WIRE 224 256 16 256
WIRE 16 272 16 256
FLAG 16 272 0
SYMBOL npn 160 80 R0
SYMATTR InstName Q1
SYMBOL res 64 16 R0
SYMATTR InstName R1
SYMATTR Value 47k
SYMBOL res 208 -16 R0
SYMATTR InstName R2
SYMATTR Value 100
SYMBOL voltage -48 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 6
SYMBOL cap 80 112 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C1
SYMATTR Value 2.2µ
SYMBOL voltage 16 160 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V2
SYMATTR Value SINE(0 0.005 1000 0 0 0 10)
SYMBOL cap 288 64 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 2.2µ
TEXT -82 296 Left 2 !.tran 0 0.01 0 0.00001