Nice job.
Has everyone forgotten my 8 x 32 patch RAM cartridge I designed and made over a year ago.
It has a rotary switch to select the bank and works just like 8 original RAM4 cartridges.
Admittedly it doesn't hold 4096 patches but is read/write with a write-protect switch.
I made a decent size batch and advertised them on eBay but got very little interest; this was quite expensive and disappointing.
I uploaded pics of the 3D model of the enclosure too.
The original thread is:
