Version 4
SHEET 1 880 680
WIRE 400 0 32 0
WIRE 32 16 32 0
WIRE 352 64 144 64
WIRE 80 112 -16 112
WIRE 176 160 144 160
WIRE 288 160 256 160
WIRE -176 208 -192 208
WIRE -80 208 -96 208
WIRE 560 208 448 208
WIRE -192 224 -192 208
WIRE -80 224 -80 208
WIRE 448 224 448 208
WIRE 560 224 560 208
WIRE -16 256 -16 192
WIRE 32 256 32 96
WIRE 32 256 -16 256
WIRE 288 256 288 240
WIRE 320 256 288 256
WIRE 352 256 352 144
WIRE 400 256 400 0
WIRE 400 256 352 256
WIRE 288 288 288 256
WIRE 320 288 320 256
WIRE -192 320 -192 304
WIRE -80 320 -80 304
WIRE 448 320 448 304
WIRE 560 320 560 304
WIRE -16 336 -16 256
WIRE 176 368 144 368
WIRE 288 368 256 368
WIRE 352 384 352 256
WIRE 80 416 -16 416
WIRE 32 448 32 256
WIRE 400 448 400 256
WIRE 352 464 144 464
WIRE 32 544 32 528
WIRE 400 544 400 528
FLAG -80 320 0
FLAG 448 320 0
FLAG 560 320 0
FLAG 32 544 0
FLAG 400 544 0
FLAG -192 320 0
FLAG 320 288 0
SYMBOL npn 80 64 R0
WINDOW 3 39 59 Left 0
SYMATTR Value 2N2222
SYMATTR InstName Q1
SYMBOL npn 80 464 M180
WINDOW 0 62 71 Left 0
WINDOW 3 32 42 Left 0
SYMATTR InstName Q2
SYMATTR Value 2N2222
SYMBOL ind2 -64 320 R180
WINDOW 0 45 45 Left 0
WINDOW 3 35 16 Left 0
SYMATTR InstName L1
SYMATTR Value 10µH
SYMBOL ind2 0 208 R180
WINDOW 0 -71 63 Left 0
WINDOW 3 -107 33 Left 0
SYMATTR InstName L2
SYMATTR Value 100µH
SYMBOL ind2 0 432 R180
WINDOW 0 -68 96 Left 0
WINDOW 3 -106 68 Left 0
SYMATTR InstName L3
SYMATTR Value 100µH
SYMBOL ind2 336 48 R0
WINDOW 0 -29 50 Left 0
WINDOW 3 -69 82 Left 0
SYMATTR InstName L4
SYMATTR Value 100µH
SYMBOL ind2 336 368 R0
WINDOW 0 -31 50 Left 0
WINDOW 3 -69 75 Left 0
SYMATTR InstName L5
SYMATTR Value 100µH
SYMBOL ind2 432 320 M180
WINDOW 0 36 80 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName L6
SYMATTR Value 100µH
SYMBOL res 576 320 R180
WINDOW 0 -3 -37 Left 0
WINDOW 3 -8 -62 Left 0
SYMATTR InstName R1
SYMATTR Value 50R
SYMBOL res -80 192 R90
WINDOW 0 -6 80 VBottom 0
WINDOW 3 -33 36 VTop 0
SYMATTR InstName R2
SYMATTR Value 50R
SYMBOL res 272 144 R90
WINDOW 0 63 72 VBottom 0
WINDOW 3 35 25 VTop 0
SYMATTR InstName R3
SYMATTR Value 47R
SYMBOL res 272 352 R90
WINDOW 0 -4 77 VBottom 0
WINDOW 3 -30 24 VTop 0
SYMATTR InstName R4
SYMATTR Value 47R
SYMBOL res 16 0 R0
WINDOW 0 38 26 Left 0
WINDOW 3 37 54 Left 0
SYMATTR InstName R5
SYMATTR Value 470R
SYMBOL res 16 432 R0
SYMATTR InstName R6
SYMATTR Value 100R
SYMBOL voltage -192 208 R0
WINDOW 0 -15 59 Left 0
WINDOW 3 -58 155 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value SINE(0 1 1000kHz)
SYMBOL voltage 400 432 R0
WINDOW 0 -15 60 Left 0
WINDOW 3 18 99 Left 0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V2
SYMATTR Value 12V
SYMBOL ind2 272 256 M180
WINDOW 0 -91 28 Left 0
WINDOW 3 -53 28 Left 0
SYMATTR InstName L7
SYMATTR Value 25µH
SYMBOL ind2 272 384 M180
WINDOW 0 -88 92 Left 0
WINDOW 3 -53 89 Left 0
SYMATTR InstName L8
SYMATTR Value 25µH
TEXT -152 80 Left 0 !K1 L1 L2 L3 1
TEXT 408 104 Left 0 !K2 L4 L5 L6 L7 L8 1
TEXT -224 440 Left 0 !.tran 0 10us 0 1ns