> What makes this big difference, the MFJ one does not have a transformer inside? Switching supply Vs Linear. You will also notice that the MFJ is MUCH cooler than the astron. IMHO, neither of these is well made. Astrons have circuitry that's pretty much lifted from National Semi app notes, with a crowbar circuit that is RF sensitive, and can be more trouble than it's worth. MFJ products are frequently rather sloppily assembled, and the company has the moniker "Mighty Fine Junk" among the ham radio community. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist