> -----Original Message-----
>
> All the items are available on eBay at much lower prices.
>
> I bought enough parts for 10 Rex units and 5 Quads in May and the total
> cost for the parts was around USD $70. Here are the links (some of the
> prices have increased since I bought), hope you find them useful:
The link to the Toshiba SRAM was VERY useful, thank you! Part of the problem I
have trying to source this stuff (on ebay or even on other electronics
retailers' sites) without having a BOM in-hand to refer to is that I don't know
which parts are equivalent. The SRAM is *mostly* the same part number but I
have no idea whether the differences in the last four letters mean there is
something different about it that will make it unsuitable for use in QUAD, you
know?
I didn't end up ordering the Xilinx chips from ebay though because the per-chip
cost after shipping and currency conversion was only slightly lower than
Digikey's price...
> Some of the items originate from China however they arrived well before
> the boards from OSHpark which took about 14days for my order, however
> YMMV. At least for the US there were no import charges.
Yeah, that's unlikely for me - most of the stuff I get from China (especially
anything with free shipping) is usually four weeks or more.
> I would not recommend programming the boards in your beloved Model T so
> many things can go wrong. Just tack on power wires and use a bench
> supply set to 5V.
I think the suggestion of putting it in the model T to power it was for those
of us who don't have a bench supply. :( What sort of things might go wrong?
> The other issue was grinding down the edges of the REX board, watch for
> the through hole plating it has a tendency to fold into the hole and can
> cause problems. I cleaned that out with a small needle file. if you
Good tip - I wonder if it would work better sanding in a perpendicular motion
rather than along the length of the board edge? I was also wondering if this
could be improved upon (for those who have one) by use of a finer-grit paper in
an orbital pad sander?
> As they say Slow is Pro! Above all have fun building them, nothing like
> seeing your efforts come alive on the Model T.
Keeping my fingers crossed. :)
jim
