Version 4
SHEET 1 880 680
WIRE 256 32 160 32
WIRE 336 32 256 32
WIRE 160 80 160 32
WIRE 256 80 256 32
WIRE 336 80 336 32
WIRE 256 208 256 160
WIRE 160 304 160 160
WIRE 256 304 256 288
WIRE 256 304 160 304
WIRE 336 304 336 144
WIRE 336 304 256 304
WIRE 336 320 336 304
FLAG 336 320 0
FLAG 336 32 C
SYMBOL res 176 176 R180
WINDOW 0 36 76 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName R1
SYMATTR Value 100
SYMBOL ind 240 64 R0
SYMATTR InstName L1
SYMATTR Value 200m
SYMBOL cap 320 80 R0
SYMATTR InstName C1
SYMATTR Value 0.5m
SYMBOL voltage 256 192 R0
SYMATTR InstName V1
SYMATTR Value 0
TEXT -48 280 Left 2 !.tran 0 2 0.04
TEXT 408 216 Left 2 !.ic i(L1) = 0.03m v(C) = 0
TEXT -232 16 Left 2 ;try R = 1, 10, 11, ..., 15, 100, 100k
TEXT -240 56 Left 2 ;check period, c.f. 1/ 2 pi sqrt(L C)