Version 4
SHEET 1 948 680
WIRE 576 -256 -16 -256
WIRE 576 -208 576 -256
WIRE 160 -112 112 -112
WIRE 288 -112 240 -112
WIRE 400 -112 352 -112
WIRE 576 -32 576 -128
WIRE 288 16 224 16
WIRE 400 16 400 -112
WIRE 400 16 352 16
WIRE 512 16 400 16
WIRE -16 96 -16 -256
WIRE 112 96 112 -112
WIRE 224 96 224 16
WIRE 576 96 576 64
WIRE 624 96 576 96
WIRE 720 96 688 96
WIRE 784 96 720 96
WIRE 848 96 784 96
WIRE 400 128 400 16
WIRE 576 128 576 96
WIRE 784 144 784 96
WIRE 720 160 720 96
WIRE -16 304 -16 176
WIRE 112 304 112 176
WIRE 224 304 224 176
WIRE 400 304 400 208
WIRE 576 304 576 208
WIRE 720 304 720 224
WIRE 784 304 784 224
FLAG -16 304 0
FLAG 112 304 0
FLAG 224 304 0
FLAG 400 304 0
FLAG 576 304 0
FLAG 848 96 Vam1
FLAG 0 0 Vam1
FLAG 720 304 0
FLAG 784 304 0
SYMBOL voltage -16 80 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 20
SYMBOL voltage 112 80 R0
WINDOW 3 -61 266 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value SINE(0 5 1k)
SYMATTR InstName V2
SYMBOL voltage 224 80 R0
WINDOW 3 10 140 Left 2
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value SINE(0 4 10k)
SYMATTR InstName V3
SYMBOL npn 512 -32 R0
SYMATTR InstName Q1
SYMATTR Value BC546B
SYMBOL res 560 112 R0
SYMATTR InstName R1
SYMATTR Value 2.2k
SYMBOL res 384 112 R0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res 256 -128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value 10k
SYMBOL cap 352 -128 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C2
SYMATTR Value 100n
SYMBOL cap 352 0 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C3
SYMATTR Value 4.7n
SYMBOL res 560 -224 R0
SYMATTR InstName R4
SYMATTR Value 6.8k
SYMBOL cap 704 160 R0
SYMATTR InstName C1
SYMATTR Value 25n
SYMBOL ind 768 128 R0
SYMATTR InstName L1
SYMATTR Value 10m
SYMBOL cap 688 80 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C4
SYMATTR Value 100n
TEXT 824 0 Left 2 !.tran 30m