开云体育

Is it possible to upgrade a 370A to 370B by changing the firmware?
(except from floppy drive)
Any information welcome...
thanks, Fred

No, and not sure why you would want to, the topology and function are virtually identical. The 370 would be a different story.
I work on these models regularly, these are the differences that I know of:
The B CPU board and floppy controller are completely different. Likely due to part obsolescence. The B boots much faster than the A. The A will run without the floppy controller, the B won't.
The step amp board looks a bit different.
The B models I have seen were assembled in Beaverton, all others built in Japan.
No schematics for the B, so difficult to know all the changes, but other than the CPU and floppy, I don't think many.
Tek has almost no parts left for these including the CRT.

Hi Bob, thanks for the information.
The only reason for a upgrade was:
"Allows saving screen images to the floppy in .bmp format.........shift/hardcopy
Allows saving curve files to the floppy in .csv format.............local/hardcopy".
But in the meantime i have a tool to convert the curve.cxx files in a bitmap curve.cxx.png or .bmp and also in a csv file.
Also using the plotter emulator software from KE5FX succesful.