----- Original Message ----- From: "Mike Stein" <[email protected]> To: "Model 100 Discussion" <[email protected]> Sent: Thursday, June 02, 2016 8:45 PM Subject: Re: [M100] Main rom using 28C256 plcc
----- Original Message ----- From: Brian White To: Model 100 Discussion Sent: Thursday, June 02, 2016 7:26 PM Subject: Re: [M100] Main rom using 28C256 plcc On Jun 2, 2016 1:41 PM, "Mike Stein" <[email protected]> wrote: > Yes, the option ROM presents some different challenges which I'll leave you > with. A pity that we can't get those funky flexible ROMBO adapters any > longer... I think the 28C256 SOIC board is essentially the same as ROMBO/MOMBO. Adam ("FigTroniX") made it from me showing him pictures of the ROMBO/MOMBO. Ideally I'd like to get a removable eeprom option working, and get onto a package that will be more readily available longer than soic, but until then the soic board works and you can still buy new soic 28c256 from Mouser at least today. ------------ I think the MOMBOs were indeed similar to what you're talking about, but the earlier ROMBOs used a funky dual-sided flexible PCB that wrapped around the .6 DIP EPROM (or the RAM in this picture of a RAM option ROM):
