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This kit consists only of a Crystal Filter PCB. Specific Crystal Kits sold separately. Crystal Filter Schematic: ExpressPCB Schematic Source File Crystal Filter PCB both layers: ExpressPCB Board Layout Source File PCB is 3.70 x 0.85 inches Notes: T1 & T2 are optional matching transformers. Typical transformer type will be a BN-43-2402 using 34 gauge magnet wire C3a,C4a,C5a,C6a are optional trimmer capacitors for fine tuning the crystal filter Typical timmer caps are GKG50015 Crystal Filter Educational Links: QER Crystal Filter Designer Crystal Slide Show (pdf) Crystal Bandpass Filters QEX Nov-Dec 2009 Feature (pdf) |
Toroids, Ferrites |