This is about a card project by OH1MQK A sync serial card for several uses. Partial fileset available on FTP. (Enough to make PALs though.) The central chip in this design (MC145448) is no longer available in mass quantities, thus there are only a few boards available of this type. Contact designer for updated info if this set gets very old.. (Now the board is in its first tests -- 20-Mar-92)