I have just opened a Mouser account in France and ordered a quantity of, 2631803802 = FT240-3 Fair-Rite.
I hope they're OK. Thanks for the tip on the weight data Ian, I'll check them when they arrive. 73, Deni F5VJC On 10 February 2012 23:55, Ian White GM3SEK <gm3...@ifwtech.co.uk> wrote: > Fred Jensen wrote: >>On 2/10/2012 2:05 PM, Jim Brown wrote: >>> On 2/10/2012 1:39 PM, Ken Alexander wrote: >> >>> Amidon does not make this stuff. They are a distributor of Fair-Rite >>> and some other manufacturers, and NOT a good one. I'd bet there's no >>> one there who has a clue about anything technical. There USED to be a >>> ham there whose name was Amidon, but he's LONG LONG gone, and any >>> technical data there is a leftover from his days. >> >>Many years ago [as in maybe 54], I needed a ferrite core for a 4:1 >>balun. DX Engineering hadn't been invented then. I drove over to >>Amidon [N. Hollywood/Burbank-ish] which turned out to be a suburban >>house. A fellow, who's name was Amidon opened the door, installed me in >>a living room filled to the brim with all sorts of boxes and stuff, >>rummaged around in a bedroom and finally came up with the toroid core. >>He wanted a lot for the core, in fact more than the 16 year old had. He >>finally asked me where I had come from, and when I told him S. Central >>LA, he gave me the core. >> >>The balun didn't work, probably because I wound it wrong. I'm really >>surprised they are still in business. > > > Any company handling anonymous grey toroids needs to have perfect stock > control... and Amidon still don't. I was sold a large number of #31 > toroids which turned out to be #43 material. > > So if you do buy from Amidon, check the weight! > > 2631803802 = "FT240-31": 112-114g [1] > 2643803802 = "FT240-43": 120-122g [1] > 5961003801 = "FT240-61": 104-106g > > Original data from G3TXQ, since verified from dependable suppliers. > > [1] The Fair-Rite data sheet says "118.000g" for both of these cores, > but in fact the weights of #31 and #43 are distinctly different. > > > -- > > 73 from Ian GM3SEK > http://www.ifwtech.co.uk/g3sek > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
