Thanks to Clark Gilbert I have re-generated the entire pdf file replacing page 13 with a new pdf page made from Clark's jpg file. You should be able to get it here:
http://www.angelfire.com/mech/indyfi...ics_Manual.zip (1.8 Mb zipped)
Unfortunately due to the multiple "translations" of pg 13, it is not quite as sharp as the original, but it now works fine (viewing and printing) for me.