--===============1211360945== Content-Type: text/plain; charset=GB2312 Content-Transfer-Encoding: 7bit gardenyu wrote: > > Recently I'm purchasing some power supplies. What surprises me is that for some very similar power supplies, MFJ-4225MV > > http://www.mfjenterprises.com/Product.php?productid=MFJ-4225MV > > and VS35M > > http://www.astroncorp.com/linear.shtml > > > The latter one has an adjustable current limiting function while the previous one has not. The rest are quite similar. The latter one is a 29 lb and the previous one is only 3.7 lb! The dimension is also doubled. > > What makes this big difference, the MFJ one does not have a transformer inside? That handles the weight issue, yes. as for the current limit, it is a cheaper product. It could be current-limited as well. --Bob A --===============1211360945== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --===============1211360945==--