Still got my original "Anorak's UK" version of this - amazing how they work to suck-in weak signals and null-out interference. In 80's used this to listen to Nova Dublin virtually perfect in Buckinghamshire, and then later in London used it to null-out Spectrum so I could still listen to Caroline 558! I also modified it with an extra inductor so it worked on Long Wave to beef up my reception of Atlantic 252.