Version 4 SHEET 1 880 680 WIRE -304 -32 -400 -32 WIRE -240 -32 -304 -32 WIRE -144 -32 -240 -32 WIRE -32 -32 -144 -32 WIRE 32 -32 -32 -32 WIRE 128 -32 32 -32 WIRE 240 -32 128 -32 WIRE 304 -32 240 -32 WIRE 400 -32 304 -32 WIRE 512 -32 400 -32 WIRE 576 -32 512 -32 WIRE 704 -32 576 -32 WIRE -304 -16 -304 -32 WIRE -240 -16 -240 -32 WIRE -32 -16 -32 -32 WIRE 32 -16 32 -32 WIRE 240 -16 240 -32 WIRE 304 -16 304 -32 WIRE 512 -16 512 -32 WIRE 576 -16 576 -32 WIRE -400 16 -400 -32 WIRE -144 16 -144 -32 WIRE 128 16 128 -32 WIRE 400 16 400 -32 WIRE -496 80 -576 80 WIRE -304 80 -304 64 WIRE -240 80 -240 48 WIRE -240 80 -304 80 WIRE -32 80 -32 64 WIRE 32 80 32 48 WIRE 32 80 -32 80 WIRE 240 80 240 64 WIRE 304 80 304 48 WIRE 304 80 240 80 WIRE 512 80 512 64 WIRE 576 80 576 48 WIRE 576 80 512 80 WIRE -304 112 -304 80 WIRE -32 112 -32 80 WIRE 240 112 240 80 WIRE 512 112 512 80 WIRE -576 128 -576 80 WIRE 704 128 704 -32 WIRE -496 160 -496 80 WIRE -480 160 -496 160 WIRE -400 160 -400 96 WIRE -400 160 -416 160 WIRE -368 160 -400 160 WIRE -240 160 -240 80 WIRE -224 160 -240 160 WIRE -144 160 -144 96 WIRE -144 160 -160 160 WIRE -96 160 -144 160 WIRE 32 160 32 80 WIRE 48 160 32 160 WIRE 128 160 128 96 WIRE 128 160 112 160 WIRE 176 160 128 160 WIRE 304 160 304 80 WIRE 320 160 304 160 WIRE 400 160 400 96 WIRE 400 160 384 160 WIRE 448 160 400 160 WIRE -576 224 -576 208 WIRE -304 224 -304 208 WIRE -32 224 -32 208 WIRE 240 224 240 208 WIRE 512 224 512 208 WIRE 704 224 704 208 FLAG -576 224 0 FLAG -304 224 0 FLAG -32 224 0 FLAG 240 224 0 FLAG 512 224 0 FLAG 704 224 0 SYMBOL voltage -576 112 R0 WINDOW 3 -107 -208 Left 0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value SINE(0V 1V 10000000 0 0 0 100) SYMATTR InstName V1 SYMBOL voltage 704 112 R0 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR InstName V2 SYMATTR Value 12V SYMBOL npn -368 112 R0 SYMATTR InstName Q1 SYMBOL npn -96 112 R0 SYMATTR InstName Q2 SYMBOL npn 176 112 R0 SYMATTR InstName Q3 SYMBOL npn 448 112 R0 SYMATTR InstName Q4 SYMBOL res -416 0 R0 SYMATTR InstName R1 SYMATTR Value 470k SYMBOL res -160 0 R0 SYMATTR InstName R2 SYMATTR Value 470k SYMBOL res 112 0 R0 SYMATTR InstName R3 SYMATTR Value 470k SYMBOL res 384 0 R0 SYMATTR InstName R4 SYMATTR Value 470k SYMBOL ind -320 -32 R0 WINDOW 0 1 -62 Left 0 WINDOW 3 -16 -25 Left 0 SYMATTR InstName L1 SYMATTR Value 100nH SYMBOL ind -48 -32 R0 WINDOW 0 2 -58 Left 0 WINDOW 3 9 -25 Left 0 SYMATTR InstName L2 SYMATTR Value 18nH SYMBOL ind 224 -32 R0 WINDOW 0 0 -56 Left 0 WINDOW 3 8 -26 Left 0 SYMATTR InstName L3 SYMATTR Value 10nH SYMBOL ind 496 -32 R0 WINDOW 0 3 -52 Left 0 WINDOW 3 8 -24 Left 0 SYMATTR InstName L4 SYMATTR Value 5.6nH SYMBOL cap -256 -16 R0 SYMATTR InstName C1 SYMATTR Value 100pF SYMBOL cap 16 -16 R0 SYMATTR InstName C2 SYMATTR Value 22pF SYMBOL cap 288 -16 R0 SYMATTR InstName C3 SYMATTR Value 10pF SYMBOL cap 560 -16 R0 SYMATTR InstName C4 SYMATTR Value 4.7pF SYMBOL cap -416 144 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C5 SYMATTR Value 47pF SYMBOL cap -160 144 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C6 SYMATTR Value 10pF SYMBOL cap 112 144 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C7 SYMATTR Value 2.2pF SYMBOL cap 384 144 R90 WINDOW 0 0 32 VBottom 0 WINDOW 3 32 32 VTop 0 SYMATTR InstName C8 SYMATTR Value 1pF TEXT -608 248 Left 0 !.tran 0 200ns 100ns 10ps