Recent content by Kai Robinson

Because it's a 1:1 clone.

1oz copper should suffice, 28v DC is what the ADC uses - https://www.digikey.co.uk/en/resources/conversion-calculators/conversion-calculator-pcb-trace-width Use that calculator to find out if the trace widths will carry the current load.

The latest revision of the board has an extra address linenfir the ROM so people could test using the Classic ROM, as they're identical in almost every way bar the floppy disk select.

Why do I have a sneaking suspicion this would be of use to @geerlingguy ?

Might be worth posting this as a banner notification too?

Awesome! How come you went with the '881 instead of the '882?

The A vs B is merely an erratum fix, it may have just partially died, as the A version can still address 4MB.

Just checking, you don't have the ram jumper set, do you?

If you need to though, you can still buy the 180c's Sharp panel as it was often also used as an industrial display.

It only affects monochrome panels.

The only part number that matters is the apple one - 344S1018 - the others are the internal designation for the part, as they were made by Philips, VLSI - whoever had capacity, there were multiple sources.

*sigh* I wish we had things like this here... One day, I will make it to one in the US, when the swollen satsuma is long gone.

Nice to know, it's the part number beginning with 343 that's the apple part number.

Gonna sticky this!

Just stepping in here to close this thread off - we're not really here to act as downdetector.com for another forum.