It was pointed out to me over on eevblog that the "writecal" utility
to restore from EXER 02 cal data does not support the later SMD A5
boards.
I've developed a new version that works with the SMB boards and
uploaded it here:
? /g/TekScopes2/files/24xxAB-writecal-1.1.zip
As before, included is a README with instructions and the source.
Special thanks to Chuck for testing on his later model 2465B, and with
many different EPROM types and manufacturers.
-mark