Version 4
SHEET 1 880 680
WIRE 192 48 -32 48
WIRE 240 48 192 48
WIRE 368 48 320 48
WIRE 528 48 368 48
WIRE 480 128 416 128
WIRE 528 128 528 48
WIRE 528 128 480 128
WIRE -32 144 -32 48
WIRE 32 144 -32 144
WIRE 176 144 112 144
WIRE 176 160 176 144
WIRE 416 160 416 128
WIRE 528 160 528 128
WIRE -32 176 -32 144
WIRE -32 288 -32 256
WIRE 16 288 -32 288
WIRE 176 288 176 240
WIRE 176 288 16 288
WIRE 416 288 416 240
WIRE 416 288 176 288
WIRE 528 288 528 240
WIRE 528 288 416 288
FLAG 480 128 2
FLAG 192 48 a
FLAG 368 48 b
FLAG 16 288 0
SYMBOL ind2 160 256 M180
WINDOW 0 36 80 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName L1
SYMATTR Value {1k*30*30}
SYMATTR Type ind
SYMBOL ind2 432 256 R180
WINDOW 0 36 80 Left 2
WINDOW 3 36 40 Left 2
SYMATTR InstName L2
SYMATTR Value 1k
SYMATTR Type ind
SYMBOL voltage -32 160 R0
WINDOW 3 -336 54 Left 2
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value SINE(0 117 {500/2/PI})
SYMBOL res 128 128 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R1
SYMATTR Value 1
SYMBOL res 512 144 R0
SYMATTR InstName R2
SYMATTR Value 4
SYMBOL res 336 32 R90
WINDOW 0 0 56 VBottom 2
WINDOW 3 32 56 VTop 2
SYMATTR InstName R3
SYMATTR Value {Rab}
TEXT 464 0 Left 2 !.step param Rab list 1Meg 1n 2
TEXT -370 312 Left 2 !.tran 0 2 1.9 uic
TEXT 248 312 Left 2 !K L1 L2 1