Version 4 SHEET 1 3656 2392 WIRE 2128 912 1968 912 WIRE 2384 912 2208 912 WIRE 2608 912 2448 912 WIRE 3344 912 3088 912 WIRE 3584 912 3408 912 WIRE 2608 928 2608 912 WIRE 3088 928 3088 912 WIRE 1968 944 1968 912 WIRE 2384 976 2384 912 WIRE 2448 976 2448 912 WIRE 3344 976 3344 912 WIRE 3408 976 3408 912 WIRE 3584 976 3584 912 WIRE 2608 1008 2608 992 WIRE 2800 1008 2608 1008 WIRE 3088 1008 3088 992 WIRE 3088 1008 2944 1008 WIRE 2608 1024 2608 1008 WIRE 2800 1024 2800 1008 WIRE 2944 1024 2944 1008 WIRE 3088 1024 3088 1008 WIRE 1968 1072 1968 1024 WIRE 2384 1120 2384 1056 WIRE 2448 1120 2448 1056 WIRE 2608 1120 2608 1088 WIRE 3088 1120 3088 1088 WIRE 3344 1120 3344 1056 WIRE 3408 1120 3408 1056 WIRE 3584 1120 3584 1056 WIRE 2800 1152 2800 1104 WIRE 2880 1152 2800 1152 WIRE 2944 1152 2944 1104 WIRE 2944 1152 2880 1152 WIRE 2880 1184 2880 1152 WIRE 2880 1280 2880 1264 FLAG 1968 1072 0 FLAG 2608 1120 0 FLAG 2448 1120 0 FLAG 3088 1120 0 FLAG 3344 1120 0 FLAG 2384 1120 0 FLAG 3408 1120 0 FLAG 3584 1120 0 FLAG 2880 1280 0 FLAG 3584 912 OUT SYMBOL voltage 1968 928 R0 SYMATTR InstName V2 SYMATTR Value sine(10 .01 10MEG) ac 1 SYMBOL varactor 2592 1088 M180 WINDOW 0 28 55 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D1 SYMATTR Value MV2201 SYMBOL varactor 2592 928 R0 WINDOW 3 24 59 Left 2 SYMATTR Value MV2201 SYMATTR InstName D2 SYMBOL ind2 2464 1072 R180 WINDOW 0 -2 77 Right 2 WINDOW 3 -2 38 Right 2 SYMATTR InstName L2 SYMATTR Value {Lpri} SYMBOL res 2784 1008 R0 SYMATTR InstName R1 SYMATTR Value 1Meg SYMBOL varactor 3072 1088 M180 WINDOW 0 24 64 Left 2 WINDOW 3 24 0 Left 2 SYMATTR InstName D3 SYMATTR Value MV2201 SYMBOL varactor 3072 928 R0 SYMATTR InstName D4 SYMATTR Value MV2201 SYMBOL ind2 3328 1072 M180 WINDOW 0 -3 70 Right 2 WINDOW 3 -1 39 Right 2 SYMATTR InstName L3 SYMATTR Value {Lpri} SYMBOL res 2928 1008 R0 SYMATTR InstName R2 SYMATTR Value 1Meg SYMBOL ind2 3424 960 M0 WINDOW 0 -4 42 Right 2 WINDOW 3 -3 76 Right 2 SYMATTR InstName L4 SYMATTR Value {Lsec} SYMBOL ind2 2368 1072 M180 WINDOW 0 -9 79 Right 2 WINDOW 3 -7 37 Right 2 SYMATTR InstName L1 SYMATTR Value {Lsec} SYMBOL res 3568 960 R0 SYMATTR InstName R3 SYMATTR Value {Z} SYMBOL res 2224 896 R90 WINDOW 0 0 56 VBottom 2 WINDOW 3 32 56 VTop 2 SYMATTR InstName R4 SYMATTR Value {Z} SYMBOL voltage 2880 1168 R0 SYMATTR InstName V1 SYMATTR Value {Vtune} TEXT 3160 1232 Left 2 !.ac oct 100 1Meg 100Meg TEXT 2416 912 Bottom 2 !K3 L1 L2 .95 TEXT 3376 888 Center 2 !K4 L3 L4 .95 TEXT 2336 1184 Left 2 !.params Z=75 TEXT 2336 1216 Left 2 !.params Kcup=.08 TEXT 2336 1248 Left 2 !.params Lpri=100µ Lsec=.1µ TEXT 2880 968 Center 2 !Kcup1 L2 L3 {Kcup} TEXT 2864 1344 Top 1 ;This example schematic is supplied for informational/educational purposes only. TEXT 3160 1272 Left 2 !.step param Vtune list 0 5 20