4 Mar
2014
4 Mar
'14
11:09 a.m.
It is tempting at that price point.
With risk of increasing the price, wouldn't be nice to include Philipps
"OmniUSB" in the design? There is plenty of room for it.
Perhaps room for a daughterboard with an FPGA?
What I'm thinking is that if you are doing the effort to manufacture
the PCB and source the bus drivers you might as well plan ahead for
other goodies that can share the bus. Perhaps that is it, a "local"
Omnibus if possible?
/P
On Tue, Mar 04, 2014 at 08:50:24AM -0500, Steve Lafferty wrote:
I've heard from a fellow, Vince S., who has created a PCB layout for the PDP-8/e 32K
RAM design presented in my article on Tronola.com. He's considering a Kickstarter
launch to offer a $95 kit of parts and PCB but is wondering if there is sufficient
interest. If so, please let it be known.
Features include:
- Battery backup with estimated 10-year data retention.
- Inhibit on power fail to prevent memory corruption.
- Most of the full size Omnibus board offers a prototyping layout.
- Cooperation with any mix of core memory boards. Switches disable 4K fields.
- Compatibility with Omnibus specs.
- All through-hole parts, for easy assembly.
I'm not associated with the project, other than having published the article and
encouraging his efforts. Vince has published lots of PDP-8-related and other layouts on
his website and will make this one available as well:
http://so-much-stuff.com/pdp8/cad/cad.php
The article is at:
http://www.tronola.com/html/ram_for_pdp-8e.html
Thanks,
Steve Lafferty
http://www.tronola.com/