Version 4 SymbolType CELL LINE Normal 64 -64 64 192 LINE Normal -32 -64 64 -64 LINE Normal -32 192 64 192 LINE Normal -32 -64 -32 192 WINDOW 0 -32 -80 Left 2 WINDOW 3 -32 208 Left 2 SYMATTR Value TowTom2 SYMATTR Prefix X SYMATTR Description 2nd Order Tow-Thomas Filter building block. Needs .lib TowTom2.sub & .params R=10K C=160p GBW1=10Meg GBW2=15Meg Aol=100K PIN -32 64 LEFT 8 PINATTR PinName V1 PINATTR SpiceOrder 1 PIN -32 -32 LEFT 8 PINATTR PinName V2 PINATTR SpiceOrder 2 PIN -32 160 LEFT 8 PINATTR PinName INV PINATTR SpiceOrder 3