Version 4
SHEET 1 880 680
WIRE -480 32 -480 16
WIRE -480 32 -592 32
WIRE 16 48 -352 48
WIRE 160 48 16 48
WIRE -592 64 -592 32
WIRE 16 80 16 48
WIRE 160 80 160 48
WIRE 368 128 224 128
WIRE -480 144 -480 32
WIRE 224 144 224 128
WIRE 368 144 368 128
WIRE -592 192 -592 144
WIRE 160 192 160 160
WIRE 160 192 -48 192
WIRE 160 224 160 192
WIRE 224 240 224 224
WIRE 256 240 224 240
WIRE 368 240 368 224
WIRE 368 240 256 240
WIRE 256 256 256 240
WIRE -352 272 -352 48
WIRE -480 320 -480 224
WIRE -400 320 -480 320
WIRE -480 336 -480 320
WIRE -240 336 -304 336
WIRE -192 336 -240 336
WIRE -96 336 -128 336
WIRE 16 336 16 144
WIRE 16 336 -16 336
WIRE 160 336 160 304
WIRE 160 336 16 336
WIRE -240 384 -240 336
WIRE -480 432 -480 400
WIRE -320 448 -320 384
WIRE -240 496 -240 464
FLAG -320 448 0
FLAG -480 432 0
FLAG -240 496 0
FLAG -48 192 +350V
FLAG -480 16 +350V
FLAG -592 192 0
FLAG 256 256 0
SYMBOL ind2 144 64 R0
WINDOW 0 -16 47 Right 0
WINDOW 3 -17 80 Right 0
SYMATTR InstName L1
SYMATTR Value {LPRIM}
SYMATTR Type ind
SYMBOL ind2 144 208 R0
WINDOW 0 -16 49 Right 0
WINDOW 3 -15 81 Right 0
SYMATTR InstName L2
SYMATTR Value {LFBK}
SYMATTR Type ind
SYMBOL cap -464 336 M0
SYMATTR InstName C1
SYMATTR Value 10n
SYMBOL res -256 368 R0
SYMATTR InstName R1
SYMATTR Value 82K
SYMBOL res -112 352 R270
WINDOW 0 32 56 VTop 0
WINDOW 3 0 56 VBottom 0
SYMATTR InstName R2
SYMATTR Value 4K3
SYMBOL cap -192 352 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName C2
SYMATTR Value 4n7
SYMBOL res -496 128 R0
SYMATTR InstName R3
SYMATTR Value 56K
SYMBOL cap 32 80 M0
WINDOW 0 51 19 Left 0
WINDOW 3 55 48 Left 0
SYMATTR InstName C3
SYMATTR Value 5n
SYMBOL Misc\\battery -592 48 M0
WINDOW 0 49 40 Left 0
WINDOW 3 50 71 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 350
SYMBOL ind2 240 128 M0
WINDOW 0 -9 40 Right 0
WINDOW 3 -10 73 Right 0
SYMATTR InstName L3
SYMATTR Value {LFIL}
SYMATTR Type ind
SYMBOL res 352 128 R0
SYMATTR InstName R4
SYMATTR Value 6.25
SYMBOL Valve\\Tetrode -352 320 M0
WINDOW 38 33 94 Center 0
SYMATTR SpiceModel 6AQ5ry
SYMATTR InstName U2
TEXT -656 -224 Left 0 !.param LPRIM=2000u
TEXT -656 -192 Left 0 !.param Npri=40
TEXT -296 -192 Left 0 !.param Nfbk=20
TEXT -656 -160 Left 0 !.param LFBK=(Nfbk/Npri)*(Nfbk/Npri)*LPRIM
TEXT -656 -288 Left 0 !.tran 2m
TEXT 16 -16 Left 0 !K1 L1 L2 L3 .991
TEXT -656 -128 Left 0 !.param LFIL=(Nfil/Npri)*(Nfil/Npri)*LPRIM
TEXT -464 -192 Left 0 !.param Nfil=1