4 Mar
2014
4 Mar
'14
11:20 a.m.
I don't think you are going to find enough PDP8 owners for a
kickstarter.
Sounds like an interesting project. However if you include 1 SMT chip,
you could do it with FRAM or MRAM - which are in a way a modern day
equivalent of core memory. A nice link to the past.
Most people I know who restore old machines, including me, have an
irrational disdain for batteries.
On 2014-03-04 08:50, 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/