Version 4
SHEET 1 1208 1240
WIRE -80 -64 -208 -64
WIRE 96 -64 0 -64
WIRE 304 -64 96 -64
WIRE 96 -32 96 -64
WIRE 96 64 96 48
WIRE 96 64 -16 64
WIRE 96 96 96 64
WIRE -208 128 -208 -64
WIRE 304 128 304 -64
WIRE -16 144 -16 64
WIRE 96 192 96 176
WIRE 160 192 96 192
WIRE 256 192 224 192
WIRE 96 240 96 192
WIRE -208 336 -208 208
WIRE -80 336 -208 336
WIRE -16 336 -16 208
WIRE -16 336 -80 336
WIRE 96 336 96 304
WIRE 96 336 -16 336
WIRE 304 336 304 192
WIRE 304 336 96 336
WIRE -80 352 -80 336
FLAG -80 352 0
SYMBOL Misc\\DIAC 224 160 R90
WINDOW 0 0 32 VBottom 0
WINDOW 3 64 32 VTop 0
SYMATTR InstName U1
SYMBOL voltage -208 112 R0
WINDOW 3 -170 7 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR Value SINE(0 170 60)
SYMATTR InstName V1
SYMBOL res 80 80 R0
SYMATTR InstName R1
SYMATTR Value 390
SYMBOL cap 80 240 R0
SYMATTR InstName C1
SYMATTR Value .1µ
SYMBOL Misc\\TRIAC 272 128 R0
SYMATTR InstName U2
SYMBOL res 16 -80 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R3
SYMATTR Value 20
SYMBOL cap -32 144 R0
SYMATTR InstName C2
SYMATTR Value .1µ
SYMBOL res 80 -48 R0
SYMATTR InstName R2
SYMATTR Value 2.2k
TEXT -472 384 Left 0 !.SUBCKT DIAC  1    2\nQN1  5 4 2  NOUT; OFF\nQN2  8 6 7  NOUT; OFF\nQP1  6 8 2  POUT; OFF\nQP2  4 5 7  POUT; OFF\nDF  4 3  DZ; OFF\nDR  6 3  DZ; OFF\nRF  4 3  3.6E+03K\nRR  6 3  3.6E+03MEG\nRT2 1 7  3.25\nRH  7 6  13.9\nRH2 4 2  13.9\n.MODEL DZ   D (IS=267F RS=100 N=1.5 IBV=10N BV=36)\n.MODEL POUT PNP (IS=267F BF=10 CJE=797P TF=25.5U)\n.MODEL NOUT NPN (IS=267F BF=20 CJE=797P CJC=159P TF=1.7U)\n.ENDS
TEXT 0 384 Left 0 !.tran 35e-3
TEXT 344 384 Left 0 !.SUBCKT TRIAC   1  2  3\nQN1  5 4 3  NOUT OFF\nQN2 11 6 7  NOUT OFF\nQP1 6 11 3  POUT OFF\nQP2  4 5 7  POUT OFF\nDF  4  5  DZ OFF\nDR  6 11  DZ OFF\nRF  4 6  10MEG\nRT2 1 7  49.3M\nRH  7 6  10.5\nRGP 8 3  12\nRG  2 8  5.8\nRS  8 4  3\nDN  9 2  DIN OFF\nRN  9 3  6.12\nGNN  6 7 9 3 0.277\nGNP  4 5 9 3 0.521\nDP 2 10  DIP OFF\nRP 10 3  3.56\nGP  7 6 10 3 4.29\n.MODEL DIN  D (IS=382F)\n.MODEL DIP  D (IS=382F N=1.19)\n.MODEL DZ   D (IS=382F N=1.5 IBV=50U BV=500)\n.MODEL POUT PNP (IS=382F BF=5 CJE=558P TF=76.5U)\n.MODEL NOUT NPN (IS=382F BF=20 CJE=558P CJC=112P TF=5.1U)\n.ENDS
TEXT 344 272 Left 0 ;Run the simulation and\nprobe the current in R3.