Replicating an vintage unit is not easy. It takes time and patience and a lot of knowlegde on the unit your going to replicate. I spend a lot of time with the Dimension D replica. The entire schematic was recalculated and then put into VSIG. And the Dim D is fairly simple because there is so much information you can get out of the schematics.
With digital machines it is even harder, because you need to get information on the algorithms used. And without that information it is almost imposible. I used a lot of time searching thru patents to get more information on the tricks compagnies used and there is a lot of info on the internet. It is tough work, but fun to do when you have the time.
After that break the rules and make it all different 😉
……. still spending some spare time on the EMT-250 replica….