Hi, i'm building a 6502 system with a 5 volt supply. The 6502s I have are all specified to run at 5 volts like usual, but then I have these unusual M27V512 EPROM memory chips that run at 3.3 volts. I have not yet built the circuitry, so I'm wondering if the EPROMs I have (M27V512) are able to ...

Hello to you all,

I'm building a new computersystem, based on OHIO-DOS (DOS65), which
has a 65816 CPU card. It's based on a older design from the Elektor magazine.

Can someone sell me some 65816, or point me in some direction where I can buy/find these IC's?

Tanks,

Best Regards,

Edzard Kolks ...

what laptop model is it?

Hey hey hey i'm making a video card and i'm going to be using the VGA interface for a 65816 computer. Question though

Standard 640*480 resolution at 60hz requires a 25.175 mhz crystal. Around my area, these crystals are highly uncomon. I could go scrap some oldskool vga isa cards for these crystals ...