RadioReference.com Forums

It's rather rare anymore to find kits (you build 'em), but this one kinda caught my eye - it's pretty inexpensive, and apart from two toroids to wind, it looks like most anyone should be able to build it...(there is a prebuilt version, for more money, of course...)

Emtech - ZM-2 ATU (Antenna Tuning Unit)

It looks to be quite small, and I've seen at least one report that it works well with the Tecsun 880...Mike