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thanks

Any progress on your Beta guys?

I'm still gathering components and hope to start building mine soon.

I had to move to a new a couple of months ago and hadn't time to put myself into it.

Excellent work John. What's the best way of building this? Use a broken donor Dragon or buy all individual components? Does the board fit the Dragon case or is this totally different?

It's a completely different beast. You'll need to research it, and it will cost you a lot to make it.

Has a complete BOM been shared' for the Beta board?

unumlapis wrote: ↑Sat Jul 29, 2023 11:30 pm Has a complete BOM been shared' for the Beta board?

No, but you can generate one from the KiCad schematic.

John

I'm half way through the Beta board soldering, and would like to know if I can use 4164 ram chips instead of the MK4564N ones.

Other than that, I have almost everything I need including the 93L422A chips.

Oh, how do I order the tree expansion connector in the middle of the board?

Looking good Rob!

I think the two DRAM types are nearly equivalent, or at least I'm sure I've had both types in my Dragons.

I found this handy reference the other day. Might be of use: https://minuszerodegrees.net/memory/4164.htm

Those 3 connectors look like DIN41612 type B 64 way to me, probably sockets, but you'll need to double-check to be sure.

Thanks a lot!

I'm 22 14-pin sockets away of having all sockets installed...