Version 4
SHEET 1 880 680
WIRE 64 32 -48 32
WIRE 160 32 128 32
WIRE 320 32 160 32
WIRE 112 112 -48 112
WIRE 224 112 112 112
WIRE 112 176 112 112
WIRE 224 192 224 112
WIRE 320 192 224 192
FLAG 112 176 0
FLAG -64 -144 we
IOPIN -64 -144 Out
FLAG -64 -64 wy
IOPIN -64 -64 Out
FLAG 128 80 we
IOPIN 128 80 In
FLAG 160 32 wy
IOPIN 160 32 In
SYMBOL Misc\\SCR 64 48 R270
SYMATTR InstName U1
SYMATTR Value S6S3
SYMBOL voltage -48 16 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
WINDOW 3 -79 127 Left 2
SYMATTR Value SINE(0 325 50)
SYMATTR InstName V1
SYMBOL res 304 16 R0
SYMATTR InstName R1
SYMATTR Value 10
SYMBOL voltage -64 -160 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value PULSE(0 5 {az} 1n 1n 1m 20m)
SYMBOL ind 304 96 R0
SYMATTR InstName L1
SYMATTR Value 20mH
TEXT -1344 -136 Left 2 !.SUBCKT S6S3       1  2             3\n*       TERMINALS: A  G             K\nQpnp    6          4  1             Pfor      OFF\nQnpn    4          6  5             Nfor      OFF\nRfor    6          4  5G\nRrev    1          4  5G\nRshort  6          5  1MEG\nRlat    2          6  9.09\nRon     3          5  513.4m\nDfor    6          4  Zbrk\nDrev    1          4  Zbrk\nDgate   6          5  Zgate\n.MODEL  Zbrk       D  (IS=3.2E-16   IBV=100U  BV=600)\n.MODEL  Zgate      D  (IS=1E-16     IBV=100U  BV=10      VJ=0.3)\n.MODEL  Pfor       PNP(IS=5E-15     BF=0.95   CJE=5p     CJC=2p     TF=0.3U)\n.MODEL  Nfor       NPN(IS=1E-12     ISE=1E-9  BF=10.0    RC=0.45    CJE=30p     CJC=2p      TF=0.3U)\n.ENDS
TEXT -592 376 Left 2 !.tran 0.1
TEXT 296 -152 Left 2 !.param az=120*0.02/360