Version 4
SHEET 1 880 680
WIRE 112 32 96 32
WIRE 208 32 192 32
WIRE 336 32 208 32
WIRE 336 48 336 32
WIRE 208 96 208 32
WIRE -208 144 -304 144
WIRE -112 144 -208 144
WIRE -48 144 -112 144
WIRE 0 144 -48 144
WIRE 96 144 96 32
WIRE 96 144 64 144
WIRE 144 144 96 144
WIRE 336 144 336 128
WIRE -304 176 -304 144
WIRE -208 176 -208 144
WIRE -112 192 -112 144
WIRE -48 192 -48 144
WIRE 208 208 208 192
WIRE -304 272 -304 256
WIRE -208 272 -208 256
WIRE -112 272 -112 256
WIRE -48 304 -48 256
WIRE 208 304 208 288
WIRE 208 304 -48 304
WIRE 256 304 208 304
WIRE 352 304 320 304
WIRE 384 304 352 304
WIRE -48 320 -48 304
WIRE 208 320 208 304
WIRE 384 320 384 304
WIRE -48 400 -48 384
FLAG 208 400 0
FLAG 336 144 0
FLAG -112 272 0
FLAG -208 272 0
FLAG -48 400 0
FLAG -304 272 0
FLAG 352 304 out
FLAG 384 400 0
SYMBOL npn 144 96 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL res 224 304 M0
SYMATTR InstName R1a
SYMATTR Value 3k
SYMATTR SpiceLine ""
SYMBOL res 96 48 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 0 56 VBottom 2
SYMATTR InstName R2
SYMATTR Value 680k
SYMATTR SpiceLine ""
SYMBOL cap 64 160 M270
WINDOW 0 32 32 VTop 2
WINDOW 3 0 32 VBottom 2
SYMATTR InstName C1
SYMATTR Value 100p
SYMATTR SpiceLine ""
SYMBOL cap -64 256 M180
WINDOW 0 36 42 Left 2
WINDOW 3 33 4 Left 2
SYMATTR InstName C2
SYMATTR Value 1n
SYMBOL voltage 336 32 R0
WINDOW 123 24 132 Left 2
WINDOW 39 0 0 Left 2
SYMATTR Value2 AC 1
SYMATTR SpiceLine ""
SYMATTR InstName V1
SYMATTR Value 12
SYMBOL cap -96 256 R180
WINDOW 0 24 57 Left 2
WINDOW 3 18 10 Left 2
SYMATTR InstName C3
SYMATTR Value 500p
SYMATTR SpiceLine ""
SYMBOL ind -192 160 M0
SYMATTR InstName L1
SYMATTR Value 900µ
SYMBOL cap -64 320 R0
WINDOW 0 26 8 Left 2
WINDOW 3 25 52 Left 2
SYMATTR InstName C4
SYMATTR Value 1.5n
SYMATTR SpiceLine ""
SYMBOL res 224 192 M0
SYMATTR InstName R1b
SYMATTR Value 2k
SYMATTR SpiceLine ""
SYMBOL res -288 160 M0
SYMATTR InstName R4
SYMATTR Value 200k
SYMATTR SpiceLine ""
SYMBOL cap 320 288 R90
WINDOW 0 0 32 VBottom 2
WINDOW 3 32 32 VTop 2
SYMATTR InstName C5
SYMATTR Value 1n
SYMATTR SpiceLine ""
SYMBOL res 368 304 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMATTR SpiceLine ""
TEXT -336 24 Left 2 !.tran 0 1m 0 1n startup
TEXT -336 56 Left 2 !;ac oct 1001 100 100Meg