Version 4
SHEET 1 980 680
WIRE -256 -48 -336 -48
WIRE 128 -48 -256 -48
WIRE 240 -48 128 -48
WIRE 528 -48 240 -48
WIRE 128 0 128 -48
WIRE 240 0 240 -48
WIRE 240 112 240 80
WIRE 352 112 240 112
WIRE 464 112 352 112
WIRE -336 128 -336 -48
WIRE -256 128 -256 -48
WIRE 240 128 240 112
WIRE 352 144 352 112
WIRE 32 176 -48 176
WIRE 128 176 128 80
WIRE 128 176 32 176
WIRE 176 176 128 176
WIRE 352 224 352 208
WIRE 352 224 240 224
WIRE 32 240 32 176
WIRE 240 256 240 224
WIRE 352 256 352 224
WIRE 128 272 128 176
WIRE -336 352 -336 208
WIRE -256 352 -256 192
WIRE 32 352 32 320
WIRE 128 352 128 336
WIRE 240 352 240 336
WIRE 352 352 352 320
FLAG 240 352 0
FLAG 352 352 0
FLAG -336 352 0
FLAG 128 352 0
FLAG -256 352 0
FLAG 32 352 0
SYMBOL npn 176 128 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL ind 224 -16 R0
SYMATTR InstName L1
SYMATTR Value .1µ
SYMBOL cap 336 144 R0
SYMATTR InstName C1
SYMATTR Value 25p
SYMBOL cap 336 256 R0
SYMATTR InstName C2
SYMATTR Value 100p
SYMBOL res 224 240 R0
SYMATTR InstName R1
SYMATTR Value 330
SYMBOL res 112 -16 R0
SYMATTR InstName R2
SYMATTR Value 47k
SYMBOL voltage -336 112 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 10
SYMBOL cap 112 272 R0
SYMATTR InstName C3
SYMATTR Value 1n
SYMBOL cap -272 128 R0
SYMATTR InstName C4
SYMATTR Value 22n
SYMBOL res 16 224 R0
SYMATTR InstName R3
SYMATTR Value 22k
SYMBOL npn 528 160 R0
SYMATTR InstName Q2
TEXT -224 448 Left 2 !.tran 1ms
TEXT -72 448 Left 2 !.ic I(L1)=5mA