Version 4
SHEET 1 880 680
WIRE 80 -128 -16 -128
WIRE 192 -128 80 -128
WIRE 288 -128 192 -128
WIRE 384 -128 288 -128
WIRE 192 -96 192 -128
WIRE -16 -80 -16 -128
WIRE 288 -80 288 -128
WIRE 80 0 80 -128
WIRE 192 16 192 -16
WIRE 288 16 288 -16
WIRE 288 16 192 16
WIRE 384 16 288 16
WIRE -16 48 -16 0
WIRE 192 64 192 16
WIRE -192 112 -288 112
WIRE -128 112 -192 112
WIRE -16 112 -64 112
WIRE 80 112 80 80
WIRE 80 112 -16 112
WIRE 128 112 80 112
WIRE -16 144 -16 112
WIRE 80 144 80 112
WIRE -288 224 -288 112
WIRE -192 224 -192 112
WIRE -16 256 -16 208
WIRE 192 256 192 160
WIRE 192 256 -16 256
WIRE -16 288 -16 256
WIRE 192 288 192 256
WIRE -288 400 -288 288
WIRE -192 400 -192 304
WIRE -192 400 -288 400
WIRE -16 400 -16 352
WIRE -16 400 -192 400
WIRE 80 400 80 224
WIRE 80 400 -16 400
WIRE 192 400 192 368
WIRE 192 400 80 400
WIRE -288 432 -288 400
FLAG -288 432 0
FLAG -16 48 0
SYMBOL npn 128 64 R0
SYMATTR InstName Q1
SYMATTR Value BC847B
SYMBOL res 64 -16 R0
SYMATTR InstName R1
SYMATTR Value 22k
SYMBOL res 64 128 R0
SYMATTR InstName R2
SYMATTR Value 10k
SYMBOL res 176 -112 R0
SYMATTR InstName R3
SYMATTR Value 200
SYMBOL res 176 272 R0
SYMATTR InstName R4
SYMATTR Value 4.7k
SYMBOL cap -304 224 R0
SYMATTR InstName C1
SYMATTR Value 20p
SYMBOL ind -208 208 R0
SYMATTR InstName L1
SYMATTR Value 1µ
SYMBOL cap -32 288 R0
SYMATTR InstName C2
SYMATTR Value 47p
SYMBOL cap -32 144 R0
SYMATTR InstName C3
SYMATTR Value 22p
SYMBOL cap -128 128 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C4
SYMATTR Value 10n
SYMBOL voltage -16 -96 R0
SYMATTR InstName V1
SYMATTR Value 9
SYMBOL cap 272 -80 R0
SYMATTR InstName C5
SYMATTR Value 47p
TEXT -296 -104 Left 0 !.tran 0 200u 0 10n