On the lookout for an AB amp, I recently came across an ad for a Palomar FET250 Class AB1 Amp. From my understanding, Palomar was a company from way back, and the Palomar name is being carried on by some other mob. But I digress. Going by their description, this thing is powered by 2 x MOSFET ERF 7520 Transistors. Doing a search for ERF 7520 (and IRF 7520) specs returned no results. Anyone heard of these MOSFETs or know anything about them? Thanks.