That was my thought. To have a module that inserted into the existing "sidecar" or bus slot and then got secured for a permanent 3rd bank that sits inside. Not much more than one 32k SRAM chip and a latch IC to decode the I/O address pins. But I'm certainly a complete hardware novice when it comes to these things so take all that for what it's worth. I asked because many times there are those who have already done this kind of a thing and there may already be a solution. Sounds like Steve looked into it and decided it wasn't a road worth going down. I trust his knowledge on these things far more than mine.
I've got a SideCar with 96k but it isn't the most portable of units. Having the extra 32k inside would be nice. Kurt On Tue, Apr 16, 2019, at 1:50 PM, John Gardner wrote: > I meant the "sidecar" expansion connector. > > ... > > > On 4/16/19, John R. Hogerhuis <[email protected]> wrote: > > On Tue, Apr 16, 2019 at 1:27 PM John Gardner <[email protected]> wrote: > > > >> Yeah. Especially if you don't mind splitting the case > >> > >> to plug your board in... > >> > >> > > The NECs have a screw down panel that covers the socketed RAM. > > > > -- John. > > >
