willyboy - could you elaborate? - I too have one of his battery-operated units.
it's the best of the units I have at my disposal (probably not saying much by the standards here, tbh, but I think it sounds pretty good), and has loading plugs sockets and both MM/MC gain incorporated ... but I've not been too sure about the battery part of it (doesn't seem to hold it's charge brilliantly) - and the power supplies (I'm on my second, which was supposedly an improved 'linear' job).