--- In ultralightdx@..., D1028Gary@... wrote:

> The "Affordable" 7" Medium Wave FSL design (posted at
> http://www.mediafire.com/i/?lq2ummbunzz5p3s ) has always called for 64
> of the Russian surplus 140mm x 8mm ferrite rods, and this design will
> never change as long as the ferrite supply holds out (although the eBay
> sellers listing these ferrite rods have noticed the increased demand,
> and are trying to get a few more rubles for their rods and/ or their
> shipping). When originally designed, the "Affordable" FSL could be
> built for under $150 (U.S. dollars) including the high quality 660/46
> Litz wire and "N50P" variable cap, but unfortunately the ferrite rod
> prices are something beyond my control. The 7" FSL's weak signal DXing
> performance has been tested against that of a full-sized 4' sided air
> core tuned passive loop here, though (the August 2010 Oregon Beach
> DXpedition portable antenna), and it proved superior in receiving four
> AM fringe daytime DX stations (MP3's on request).
>
> 73 and Good DX,
> Gary DeBock (in Puyallup, WA, USA)