Version 4 SHEET 1 880 680 WIRE 32 -272 -144 -272 WIRE 304 -272 96 -272 WIRE -144 -208 -144 -272 WIRE 32 -208 32 -272 WIRE 96 -208 96 -272 WIRE 304 -208 304 -272 WIRE -144 -48 -144 -128 WIRE -16 -48 -144 -48 WIRE 32 -48 32 -128 WIRE 32 -48 -16 -48 WIRE 96 -48 96 -128 WIRE 96 -48 32 -48 WIRE 304 -48 304 -128 WIRE 304 -48 96 -48 WIRE -16 -16 -16 -48 FLAG -16 -16 0 FLAG 32 -272 a FLAG 96 -272 b SYMBOL voltage -144 -224 R0 WINDOW 3 -206 99 Left 2 WINDOW 123 0 0 Left 2 WINDOW 39 -173 159 Left 2 SYMATTR Value SINE(0 311 50) SYMATTR SpiceLine Rser=1n SYMATTR InstName V1 SYMBOL ind2 16 -224 R0 WINDOW 0 -32 26 Left 2 WINDOW 3 -24 102 Left 2 SYMATTR InstName L1 SYMATTR Value 1µ SYMATTR Type ind SYMBOL ind2 112 -224 M0 WINDOW 0 -28 24 Left 2 WINDOW 3 -24 103 Left 2 SYMATTR InstName L2 SYMATTR Value 9µ SYMATTR Type ind SYMBOL res 288 -224 R0 SYMATTR InstName R1 SYMATTR Value 50k TEXT 160 0 Left 2 !.tran 0.1 TEXT 8 -328 Left 2 !K L1 L2 0.5 TEXT 152 -328 Left 2 ;(Mutual coupling can be set to [-1,1]. This case, we try 1. TEXT 16 -24 Left 2 ;1:3 Turns