I have an HP 67 calculator which has developed a gummy wheel which causes the card reader not to work.
Joe Rigdon who helped repair some battery chargers a couple of years ago for me apparently cannot be contacted at his last e-mail address. I've contacted the two companies listed in A Guide to HP Handheld Calculators and Computers and neither repair the HP 67 any longer.
Does anyone know who repairs HP 67 calculators presently?