VIC4 Cores, Bobbin STLs
Amazon link to cores: Ferrite U Cores
Bobbin half pieces: VIC4 Half Bobbin_.stl
Bobbin Half Pieces:
Bobbins will need to be super glued together. There is a 0.040" larger diameter on purpose to accommodate discrepancies with ferrite cores not aligning perfectly. These bobbins will except up to 3000 turns of #30 gauge wire if winding principles are adhered to,.