[Elecraft] Source for Type 31 Toroids

[Jim Brown]

On 2/10/2012 10:23 AM, Ken Alexander wrote:
> However, Fair-Rite's online catalog does not list them in
> their toroid section, nor are they shown in their downloadable PDF catalog.

They are there -- you have to look under the EMC products, not inductive 
products. Same thing, but the inductive parts are tested for inductance 
at low frequencies while the EMC parts are tested for impedance at 
higher frequencies.  See Appendix One of the RFI tutorial for Fair-Rite 
part numbers and a list of known good sources.  Off the top of my head, 
Allied, Newark, Digikey, Kreiger, Lodestone Pacific come to mind.  It 
pays to shop around, and to buy in quantity, combining quantities with 
your ham neighbors and clubs.

73, Jim K9YC