SRAM for C64 (and maybe 600XL)
I made a compact PCB which replaces DRAM with SRAM and fixes the VSP bug. It fits 466 & 469 motherboards. I'll place some for sale after I receive the correct SRAM chips. I ordered wide SOIJ case by accident. It did fit the PCB anyway and I could test the protype. This should also work with 600XL. My 600XL is dead at the moment so can't test.
Yes. This is my 65XE below which I practically rebuilt ( if you're wondering about the sockets ).
Atari did use the 130XE PCB in later 65XE models, presumably to save costs and just use the same PCB layout for both. As you can see the 2 other rams and EMMU are missing.
And a 130XE with 4 x 4464 dram.