Version 4
SHEET 1 880 680
WIRE 0 -112 -256 -112
WIRE 192 -112 0 -112
WIRE 0 -96 0 -112
WIRE 192 -96 192 -112
WIRE 0 0 0 -16
WIRE 0 0 -80 0
WIRE 192 0 192 -16
WIRE 192 0 112 0
WIRE -80 16 -80 0
WIRE 112 16 112 0
WIRE 0 112 0 0
WIRE 32 112 0 112
WIRE 112 112 112 96
WIRE 112 112 96 112
WIRE 192 112 192 0
WIRE 224 112 192 112
WIRE 304 112 288 112
WIRE 368 112 304 112
WIRE 416 112 368 112
WIRE -256 128 -256 -112
WIRE 0 128 0 112
WIRE 192 128 192 112
WIRE 304 128 304 112
WIRE 368 144 368 112
WIRE -160 176 -176 176
WIRE -80 176 -80 96
WIRE -80 176 -96 176
WIRE -64 176 -80 176
WIRE 112 176 112 112
WIRE 128 176 112 176
WIRE 0 272 0 224
WIRE 192 272 192 224
WIRE -256 368 -256 208
WIRE 0 368 0 352
WIRE 192 368 192 352
WIRE 304 368 304 208
WIRE 368 368 368 208
WIRE -176 400 -176 176
WIRE 416 400 416 112
WIRE 416 400 -176 400
FLAG -256 368 0
FLAG 0 368 0
FLAG 192 368 0
FLAG 304 368 0
FLAG 368 368 0
SYMBOL voltage -256 112 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 24 44 Left 0
SYMATTR InstName V1
SYMATTR Value 15V
SYMBOL res 96 0 R0
SYMATTR InstName R1
SYMATTR Value 680k
SYMBOL res -16 -112 R0
SYMATTR InstName R2
SYMATTR Value 1k
SYMBOL res 176 -112 R0
SYMATTR InstName R4
SYMATTR Value 1k
SYMBOL cap 96 96 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C1
SYMATTR Value 50p
SYMBOL cap 288 96 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C2
SYMATTR Value 1p
SYMBOL ind 288 112 R0
WINDOW 0 3 -67 Left 0
WINDOW 3 -7 -35 Left 0
SYMATTR InstName L1
SYMATTR Value 10µH
SYMATTR SpiceLine Rser=0.5
SYMBOL cap 352 144 R0
WINDOW 0 0 -99 Left 0
WINDOW 3 -8 -69 Left 0
SYMATTR InstName C3
SYMATTR Value 100p
SYMATTR SpiceLine Rser=0.5
SYMBOL npn -64 128 R0
SYMATTR InstName Q1
SYMATTR Value BC547C
SYMBOL npn 128 128 R0
SYMATTR InstName Q2
SYMATTR Value BC547C
SYMBOL cap -96 160 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 32 32 VTop 0
SYMATTR InstName C4
SYMATTR Value 1p
SYMBOL res -96 0 R0
SYMATTR InstName R3
SYMATTR Value 680k
SYMBOL res -16 256 R0
SYMATTR InstName R5
SYMATTR Value 22R
SYMBOL res 176 256 R0
SYMATTR InstName R6
SYMATTR Value 22R
TEXT -40 -144 Left 0 !.tran 0 100us 0 5ns uic