Version 4
SHEET 1 880 680
WIRE 96 96 -48 96
WIRE 240 96 176 96
WIRE 336 96 240 96
WIRE -48 144 -48 96
WIRE 240 144 240 96
WIRE 336 160 336 96
WIRE -48 272 -48 224
WIRE 240 272 240 224
WIRE 240 272 -48 272
WIRE 336 272 336 224
WIRE 336 272 240 272
WIRE -48 288 -48 272
FLAG -48 288 0
FLAG -48 96 Z
SYMBOL ind 80 112 R270
WINDOW 0 32 56 VTop 2
WINDOW 3 5 56 VBottom 2
SYMATTR InstName L1
SYMATTR Value 0.86718m
SYMBOL cap 320 160 R0
SYMATTR InstName C1
SYMATTR Value 17.344n
SYMBOL Misc\\EuropeanResistor 224 128 R0
SYMATTR InstName R1
SYMATTR Value 1k
SYMBOL current -48 224 M180
WINDOW 0 24 80 Left 2
WINDOW 3 24 0 Left 2
SYMATTR InstName I1
SYMATTR Value AC 1
TEXT -56 -16 Left 2 !.ac lin 2001 30k 50k
TEXT -136 360 Left 2 ;Z0=50Ohm  f0=40kHz R=1kOhm\nC = 1/(w*R) *sqrt(R/Z0-1)\nL = R^2*C/(1+(w*R*C)^2)\n \nZ_ = R/(1+(w*R*C)^2) +jw*L -jw*R*R*C/(1+(w*R*C)^2)