Yes, for ferrites, many (all?) of the Amidon FT-xxx parts are perfectly standard Fair-Rite cores available from full-line distributors like Mouser, Newark, etc.
Iron powder cores are not stocked by any of the standard distributors that I know of, but kitsandparts.com has good prices and quick delivery. Sometimes Amidon is the best or only place for a particular part. Good online source on ferrite transformers with measurements and distributor part numbers: Clifton Labs. e.g. http://www.cliftonlaboratories.com/ferrites,_inductors_and_transformers.htm Tim N3QE On Tue, Jun 23, 2015 at 2:02 PM, Jim Lux <[email protected]> wrote: > On 6/23/15 4:25 AM, Tim Shoppa wrote: > >> "Experimental Methods in RF Design" has a half-dozen pages specifically on >> the choices of powdered iron and ferrite materials, and lots of working >> circuits and designs with measurements. Aka EMRFD. >> http://www.arrl.org/shop/Experimental-Methods-in-RF-Design >> >> Here in the USA, iron powder and ferrite cores of many different >> materials, >> sizes, and a few shapes are available from Amidon and kitsandparts.com. >> Many useful ferrite cores for multi-turn transformers and chokes, are sold >> as "EMI beads" by Mouser and Newark and other mainline distributors. I >> don't know too much about easy availability in EU. >> >> > I don't know that I'd recommend Amidon as a source. Back when mail-order > was king, Amidon did hams a real service by buying in bulk and selling in > small quantities. The price was high, but there was no other source. > > Amidon has gone through a lot of business changes over the last 20-30 > years (making magnetic tape heads and then not, overseas manufacturing, > etc.). > > They're not the same company as Bill Amidon sitting in his garage in the > San Fernando Valley putting cores in little paper or plastic envelopes with > that folded up tissue paper instruction and data sheet with all the handy > design equations and graphs. > > It used to be tough to get databooks from large manufacturers as a > hobbyist. The sales reps would hand them out after qualifying you as a > potential lead. Bill did everyone a great service in essentially redrawing > and republishing all the needed data in a handy form. > > > These days, most of the parts, (e.g. made by Fair-rite,Ferroxcube, > Philips), etc are available from Mouser, DigiKey and other distributors > readily. > > Furthermore, the design information is readily available on the web (e.g. > from Fair-rite) or in various mailing lists. > > > > > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
