I'm looking at some ceramic filter catalogs from Murata. I'm trying to determine the marking on some filters. They refer to the "EIAJ Monthly Code." Does anyone have documentation on this code? The only thing Google turns up so far is more Murata data saying the same thing with no explanation of how to decode it. THANKS! Harold --=20 FCC Rules Updated Daily at http://www.hallikainen.com Not sent from an iPhone. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .