Seems like someone on list was willing and able to read PAL16L8s and
give a try to some PAL16R4s... Is that person still on list and still
interested? If so, please contact me off-list.
I am trying to restore some C64 carts, and the PAL on my working unit is
protected, so I cannot replicate.
brain at jbrain.comwww.jbrain.com
it has taken a while but I'm now actively planning to shift out another
batch of OmniUSB boards. The last batch is sold out for a long time and
I've been asked for more from time to time.
As some of you might remember, it's a cool device to connect your
pdp8/f/a/m/e to the modern world using lightning fast USB.
The originial board has it's website here:
The new board will do the same, perhaps even more.
- the USB connector will be replaced by a mini (NOT micro!!) USB connector.
- The connector position and cable routing will be improved.
- The board will be shorter. But it will come by default with a laser
cut acrylic extension that makes it full size again.
There will be at least those options to buy:
- Kit (board + all parts)
- Kit+ (board + all parts, SMT already assembled)
- complete version - Everything soldered and tested.
- discount for omitting acrylic extender
I cannot guarantee that I can deliver fully assembled boards
(regulations) and would be able to do that only if there's a reasonable
number of interested buyers.
If have set up a doodle poll to get a realistic picture of the interest
in the board/kit/device:
PLEASE take the minute and fill in your name (ideally that I can
recognise you) and check the options which most precisely match your
PLEASE be as honest as possible as I will base my decisions IF and for
which PRICE I can run the show.
The scientific graphics software package, written By Ian Hirscholn. Later sold to Coumputer Automation.
He ported it to the PC later, with his company ISSCO.
They also made a neat bitslice machine to run it, the Portable Graphics Mainframe, I had one for a bit, I was their rep.
Anybody have anything on this beast, it was amazing.
Looking for documentation on the DATARAM DR-118 16Kx12 core memory for PDP-8/e. I have the documentation on the DR-118A which is for the PDP-8/a. It is probably similar, but would love to find the right version.
Anyone have such thing?
Greetings to all;
All this talk of favourite machines and getting into the hobby has gotten
me amped up to work on my E10k. The E10k was always the "coolest" machine
for me - largely due to the timing of my entry into the industry.
I recently read Tracy Kidder's Soul of a New Machine and was pondering the
history of the E10k and its start in Cray Research Inc and its subsequent
sale to Sun. The asset transfer that must've taken place and then how Sun
turned it around to make it a Sun product and made its impact on the
market has to be a fascinating story too.
I would love to talk to anyone who was involved in the development,
transfer, initial rollout and support of the E10k - from both CRI's and
Sun's perspective. Heck, I'd be fascinated to talk to anyone who purchased
the machines during their lifespan (1997-2001) and could tell me what you
used them for.
If you only know of someone that was involved that you might think would
be interested in talking to me, please pass my eMail address on.
Maybe if I get a big response I could put something together, if there was
suitable interest of course. But at this point, I'm mostly just
fascinated for myself.
Thanks to all!
For those curious about the status of the LGP-30 restoration, I?ve got a
blog up with the latest. http://radar58.com/LGP30/
The power supplies are stable, the blower unit was overhauled and new
bearings installed, all the modules have been recapped. I had a noisy
bearing in the memory drum, thankfully it was one that could be accessed
through the pulley end and I was able to inject fresh grease. There were
burnt contacts in one of the open frame relays in the sequencer unit
leading to intermittents. I found a NOS 3-pole version with fresh contacts
and transferred those over yesterday and we now have correct startup. The
?digital display? chassis has been worked over with fresh resistors and
this has made the controls much more responsive. The Flexowriter is
behaving and the 6 associated FF's in the machine respond to keystrokes.
All-told, I?m at the point of troubleshooting the scope display- I have a
sad, unintelligible, wavy line, but I believe retrace is derived from the
system clock track on the drum, so that?s my next investigation. Both
vertical and horizontal boards have been rebuilt and tubes substituted with
no change. -C
> From: Jon Elson
Dave Bridgham and I have been using KiCAD for our stuff, and we're pretty
happy with it.
Here are a few bits: this is just data, I'm not trying to convince anyone to
use it - the points about 'complex tools one is already very used to' are
very good ones.
> I'm most concerned about the reliability of the design rules check
> If these checks miss errors, I REALLY don't want to use the package.
I'm not quite sure what's covered here, but I have used the checker on my
admittedly-tiny projects, and been happy with it.
> and layout vs. schematic.
Again, Dave has used it to lay out at least one moderately-sized card, and
seems to have been happy with the results.
> (KiCad seems to still require picking operations from a menu, Protel
> has user-configurable keyboard shortcuts that are a big help. Maybe
> KiCad has that and I just need to learn them.)
KiCAD does have keyboard shortcuts. I don't know if they are configurable.
> From: Guy Sotomayor Jr
> In terms of community supplied libraries, Eagle has those too and I've
> found that by and large they are junk (it's easier/quicker for me to
> create a part on my own
> ... While I haven't seen a lot of KiCAD contributed libraries (that's
> part of the problem)
KiCAD came with a fairly large set of user-contributed libraries. For various
reasons (including working with archaic parts), I've wound up adding quite a
few, but i've usally found it pretty easy to modify an exising part from the
libraries, to get what I need. YMMV.