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One thing you guys should keep in mind is that for their black plastic Atari cart shells, Atari Age does indeed use existing Atari carts for parts; they offer to buy the common carts on their page for this reason. The only cases AtariAge makes are the custom ones, which (if I remember right) cost mo...

You should really do something with the address lines, don't leave them floating, especially with CMOS ROMs. Either tie them to GND or VCC to select your 64k window, this will make doubling up the ROM redundant. Is there an issue connecting every pin to where it normally goes on the board after all...

The PRG data is 64k .: 27512 CHR is 16K .: 27128... Most of the time you can just use a larger chip and repeat the data through the unused space. Okay, perfect! So, for example, I pick up two 27c010 (128k), then repeat the prg data (64k) twice in one chip to fill it, and the chr data (16k) eight ti...

awesome, nice quick response! as a side note, is there a good all around reccommended eprom chip anyone can suggest? Like I say, I'm a little new to the nes hardware scene, and I'm looking to see what's going to work best for me (i.e. rom pinouts matching close as possible, low form-factor chips so ...

Hey there, I'm a little new to nes hardware type stuff beyond simple repair, but not new to soldering/modding/repairing electronics in general. So this shouldn't be outside my skill level.. I've searched the boards here, and googled a bunch, but I've come up with a lot of conflicting and/or vague in...