Version 4 SHEET 1 1060 680 WIRE -384 -128 -448 -128 WIRE -288 -128 -320 -128 WIRE -112 -128 -240 -128 WIRE -64 -128 -112 -128 WIRE 64 -128 16 -128 WIRE 240 -128 64 -128 WIRE 400 -128 288 -128 WIRE 464 -128 400 -128 WIRE 496 -128 464 -128 WIRE 624 -128 560 -128 WIRE -240 -96 -240 -128 WIRE -288 -80 -288 -128 WIRE -112 -64 -112 -128 WIRE 64 -64 64 -128 WIRE 288 -64 288 -128 WIRE 400 -64 400 -128 WIRE 240 -48 240 -128 WIRE -288 0 -288 -32 WIRE -240 16 -240 -16 WIRE 240 32 240 0 WIRE 288 32 288 16 WIRE 400 32 400 16 WIRE -112 48 -112 16 WIRE 64 48 64 16 FLAG 64 48 0 FLAG -112 48 0 FLAG -240 16 0 FLAG -288 0 0 FLAG 240 32 0 FLAG 288 32 0 FLAG 400 32 0 FLAG 464 -128 2 FLAG -288 -128 1 SYMBOL ind 48 -80 R0 WINDOW 0 59 45 Bottom 2 WINDOW 3 61 50 Top 2 WINDOW 123 102 107 Bottom 2 SYMATTR InstName L1 SYMATTR Value {L1} SYMATTR Value2 Cpar={C1} SYMBOL g -240 -112 R0 SYMATTR InstName G1 SYMATTR Value {2/R1} SYMBOL res -128 -80 R0 SYMATTR InstName R1 SYMATTR Value {R1/2} SYMBOL res 32 -144 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R2 SYMATTR Value {R1/2} SYMBOL g 288 -80 R0 SYMATTR InstName G2 SYMATTR Value {10*H} SYMBOL res 384 -80 R0 SYMATTR InstName R3 SYMATTR Value .1 SYMBOL Misc\\jumper 528 -192 R0 SYMATTR InstName X1 SYMBOL Misc\\jumper -352 -192 M0 SYMATTR InstName X2 TEXT 408 -256 Left 2 ;.param f0= 1k Q=.5 TEXT 320 112 Left 2 !.param R1=1k TEXT 152 200 Left 2 !.param L1=1/(C1*(2*pi*f0)**2) TEXT -448 -256 Left 2 ;Most efficient LTSPICE implementation for f0 and Q set by parameters >>> TEXT 120 112 Left 2 ;R1 is arbitary >>> TEXT -328 -200 Left 2 ;This version puts 1/2 the R1 resistance in the capacitor TEXT 152 160 Left 2 !.param C1=Q/(R1*2*pi*f0) TEXT 576 -144 Left 2 ;Vout TEXT -400 -144 Right 2 ;Vin