Future Electronics have just sent me some blurb on the Vicor 'VI BRICK'=20 bus converters. Input between 36 - 55Vdc (depends on model), with output of 9v6 -> 12Vdc @= =20 70A with input to output isolation. http://littleurl.info/nx4 Colin -- cdb, 17/10/2011 =20 -- colin@btech-online.co.uk --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .