Version 4
SHEET 1 4432 680
WIRE 1440 -304 1152 -304
WIRE 1440 -288 1440 -304
WIRE 1152 -256 1152 -304
WIRE 1440 -128 1440 -208
WIRE 1504 -128 1440 -128
WIRE 1520 -128 1504 -128
WIRE 1584 -128 1520 -128
WIRE 1520 -112 1520 -128
WIRE 1952 -80 1952 -96
WIRE 2016 -80 1952 -80
WIRE 1952 -64 1952 -80
WIRE 1520 -32 1520 -48
WIRE 1440 48 1440 -128
WIRE 1440 48 1408 48
WIRE 1344 96 1264 96
WIRE 1264 112 1264 96
WIRE 1440 144 1408 144
WIRE 1440 176 1440 144
WIRE 1600 176 1440 176
WIRE 1696 176 1600 176
WIRE 1728 176 1696 176
WIRE 1600 192 1600 176
WIRE 1488 272 1376 272
WIRE 1600 272 1568 272
WIRE 1376 304 1376 272
FLAG 1376 304 0
FLAG 1152 -176 0
FLAG 1520 -32 0
FLAG 1696 176 Out
FLAG 1504 -128 C
FLAG 1952 -96 OSC
FLAG 1952 16 0
FLAG 2016 -16 0
FLAG 1728 256 0
FLAG 1264 192 0
SYMBOL res 1424 -304 R0
SYMATTR InstName R2
SYMATTR Value 1000k
SYMBOL voltage 1152 -272 R0
WINDOW 123 0 0 Left 2
WINDOW 39 0 0 Left 2
SYMATTR InstName V1
SYMATTR Value 130
SYMBOL res 1584 176 R0
SYMATTR InstName R3
SYMATTR Value 50
SYMBOL cap 1504 -112 R0
SYMATTR InstName C1
SYMATTR Value {c} ic=0
SYMATTR SpiceLine Lser=5n
SYMBOL bi 1952 16 R180
WINDOW 0 24 80 Left 2
WINDOW 3 -37 -39 Left 2
SYMATTR InstName B1
SYMATTR Value I=V(c) Rpar=1
SYMBOL cap 2000 -80 R0
SYMATTR InstName C2
SYMATTR Value 531p
SYMBOL ind 1584 256 R90
WINDOW 0 5 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName L1
SYMATTR Value 5n
SYMBOL res 1248 96 R0
SYMATTR InstName R1
SYMATTR Value 10k
SYMBOL res 1712 160 R0
SYMATTR InstName R4
SYMATTR Value 50
SYMBOL mmbt2369Avalanche 1376 96 R0
SYMATTR InstName X1
TEXT 936 352 Left 2 !.tran 0 20u 0 10n uic
TEXT 936 400 Left 4 !.options reltol=0.01m
TEXT 1312 120 Left 4 ;*
TEXT 1472 8 Left 2 !.step param c list   100p 18p 8p 2p
TEXT 1576 -32 Left 2 !.param c=100p