Here’s a picture I posted to my watsonseblog in 2009. It shows several of the toroids I wound on Fair-Rite “suppressor sleeves” I bought from Mouser.com (They cost about 12 cents apiece). The part numbers are 2673002402 (high permeability) and 2643002402 medium-high permeability).
2012-05-25 Toroids Wound on Fair-Rite Cores
