Currently the room on the board is still looking decent, so I may change up the memory map slightly so there are more enables for devices. I am only using OR gates for mapping right now and I could always throw in a decoder.

I would be into these boards like crazy. Would want to order two, FYI

Very happy to hear that! They should be right around the same price of the GB programmer boards too, unpopulated of course.

Then we can have a z80 competition between all of the purchasers to see who can do the coolest things with it!

As for the size of run, I was going to aim for 10 boards again. We may have to look into half-shells for the GB programmers. They ended up being heavy to one side because of the cart connector, meaning stand-offs don't help a whole lot. Room to learn I suppose.

Anyhow, keep talking to me people! Start thinking about whether you want a colored PCB, ENIG, or if I should do kit-bundles again. Obviously, many parts are obsolete and harder to source, so kits would only include everything minus CPU/RAM/ROM. A pre-soldered kit would have sockets ready to drop your chips in. Then again, I do have a large handful of 27c64's so maybe a pre-programmed BASIC ROM option too.

if the run on these is super small, i might be able to do them on my printer also.

a (cheaper) option would be to do an acrylic dovetailed box or something.  if so, cm.o's arfink or nbscloset could help out with making those

Resistors will be made Surface Mount to save space and so the ground pour doesn't get chopped up so much. At this point, there are many free headers on either side of the board. Ceramic Caps will remain through-hole so that VCC may be routed on both sides more easily and to offer more coverage of GND.  um...yep. That is all for now.

@Alpine, I am familiar with and attached to Jazzmarazz, so you have a point, although I wouldn't say "A lot of stuff" under it.
Im still just an unknown face on the web.

@rygD, You also have a point, I should come up with it myself but I am having difficulty. I don't want something Super serious, but nothing along the lines of Super-duper-make-cool-stuff Co. either.  lol

As for the board, the bare simple version is coming along well. I have located an ideal regulator in a lovely SOT-233 package, but the thing holding me back seems to be that I have to create a lot of the libraries myself, or modify ones that I already have. The good thing about both drawing a schematic and board layout is that I may choose the packages and parts myself. No one can tell me to go with parts I do not wish to use.

Next I will be changing up the quartz crystal to a larger quartz oscillator in the 014 or 008 package so that users may alter the rate more easily. If I can locate a highly available variable clock IC, I may utilize that but we'll see what happens. After I find these things, I can move on to tracing the rest of the board and then creating a blank "shield" with loads of tie points.

I will be confidant to share photos in a day or two.

EDIT: Got rid of the parallel resonance altogether! DERRR! Why was I messing with a two pin clock at all?!

I would really like a full computer, so I think starting with the dev board for now, and keeping costs down in the short term, may be the best option.  It creates a wider audience in the long run, as people customize their projects.  It would be great if you made both.  It might be difficult to get funding for both projects, although I love that idea (except i so love the old stuff I may use up all my dollars on those).  If you haven't already done so, consider mentioning this on other forums, if you think it might be appropriate.  I will mention it to a few people also.

ps: "Obsolescence" is the direction to go, imo.

Jazzmarazz wrote:

I think I shall start with a bare z80, rom/ram setup. Nothing special, but fully moddable. It will cost much less and can be made to do anything, even as much as the full computer I hope to make soon afterward.

I like this approach.  Even a little perfboard on one side to make additional jumper/headers to solder to would be nice.
As far as the moniker, I'm a little surprised you would ask for advice.  Those types of things are always so personal.
It usually will just click, anyway thanks for all of the effort.

The board so far has USB (power only) and regulated DC input with a Jumper to select between one or the other. So far, that is all I have added aside from the cpu/rom/ram.

I do like it, but it leaves me in the same place. I would like to move away from Jazz altogether. It is the past-me and has no relevance with my goals.