On 8/5/2014 11:36 AM, Mike Waters wrote: > FT-240-61 cores. Amidon was $9/ea, Mouser (for the Fair Rite equivalent) > >was $14/ea. The actual manufacturer of a 2.4-in o.d. #61 toroid IS Fair-Rite. It is not an "equivalent," #61 material is Fair-Rite's mix. Other companies may make a "knock-off," but the REAL part is made by Fair-Rite. 73, Jim K9YC