Hi There was an article in Electronics World of March 1996. Had a module from Galleon Systems. The module was named EM1 and cost 30 pound. The article had the internal description of the chips / logic as well. (That by a quick look - I could be wrong) Hope this helps! -- Eric van Es | Cape Town, South-Africa Mailto:vanes@ilink.nis.za | WWW: http://www.nis.za/~vanes/ TEMPORARY/HOLIDAY ACCOMMODATION? http://www.nis.za/~vanes/accom.htm