Ok, I could, probably on a future, produce a copy of Saint's Ram expansion... May be some user would need it, but not John Fante, who already owns a SF3.
On the other side, I don't think that the internal memory shown on the picture(Hungarian SMD type) had place for the EXOS.Rom.
I don't see the point on putting the EXOS Rom on the internal expansion memory. Once you open the EP, it is very easy to remove the original Rom(It always comes in socket) and plug a 64KB EPROM. It only needs to solder an additional address bus cable to expand the addressing range from 00-01 segments to 00-03 segments. There is a thread on how to do it.
Zozo or I, both can provide the necessary 64KB programmed EPROM, but it is a lot easier: a) buy blank 64KB EPROMS on a components shop, that probably has a programming service once the Rom file is provided, or b) buy the blank EPROMS and order on China a cheap chip programmer.
About adding (a lot of) memory to your Enterprise with a SF3, please read the thread "
Questions about SymbiFace3". Also, it is the perfect place to solve your SF3 doubts.
It is also possible, with the SF3, to inject the EXOS Rom on an Enterprise without the internal Rom on its socket. It needs to enable the ROMEXOS_ENA=ON command on the INI file. This option is intended more for hardware fixing purposes, not for a daily use, because then the Enterprise can't start without the SF3 connected.
John, can you show the damage on your internal memory expansion?, maybe it could be fixed.
