From: Steve Malikoff via cctalk: Tuesday, January 02, 2018 6:24 PM
I'm in need of some feet for my H960s and am intending to make a few pairs, so
I thought I might
as well try and make them look close to the originals.
I have some questions-
Does the (optional?) sheetmetal kickplate play any
On Wed, Jan 3, 2018 at 10:28 AM, Vincent Slyngstad via cctalk
wrote:
> From: Steve Malikoff via cctalk: Tuesday, January 02, 2018 6:24 PM
>>
>> I'm in need of some feet for my H960s and am intending to make a few
>> pairs, so I thought I might as well try and make them look close to the
>> origin
> From: Ethan Dicks
> The rod is also smaller by quite a bit, but I don't have one in front
> of me to measure.
The two feet are quite different. The smaller one on the extender is 5/16"-18
(i.e. UNC Coarse thread); the larger one under the cabinet is 1/2"-13.
Replacements can easily
I am beginning to wonder if the problem might be the ULA.
The reason I say this is that when I set up the logic analyser to *stop* on a
zero ROM address, it didn't. Which means it isn't resetting in the way I
thought it was. When I traced the instruction addresses during boot up I could
see lot
I would be interested in a few dozen of the cabinet feet and maybe 18 for
the stabilizer feet.
I seem to recall looking at a few of the stabilizer feet a few months ago
and noticing there were a few different versions. I will try to find my
cabinet handbook and see what it says, and supply DEC par
Hello PDP-11 crowd:
I’m thinking of starting a project that will interface to a DR11-C, which has
the usual 40-pin Berg ribbon cable connectors. I thought I’d ping the
collected wisdom here to see if other folks had already sourced an available
modern cable connector for this that they partic
Greetings from the piles!
I've created a new thread on the VCFed forums for listing manuals, books,
magazines and general computer related documentation.
The thread is here:
http://www.vcfed.org/forum/showthread.php?61380-Sellam-s-Manual-Book-Magazine-and-General-Documentation-Sales-Thread
Than
Most IDC connectors will fit just fine. I've use old 40-pin IDE cables
before. Beware that the keying boss may be too short for the old blue Berg
housings, allowing the cable to be inserted upside-down (don't depend on
the keying boss!).
There are wire housing type connectors you can get, as well,
Excellent, that's a great start.
Vince - thanks for the measurements, I will redraw a better 3-view using those.
Not sure about how the extra bolt goes though.
Ethan - thanks for confirming the different leg pad to frame pad.
Noel - that is extremely useful info on the pads, I've now found them a
On 2018-01-01 13:42, David Bridgham via cctalk wrote:
I'd rather not get diverted by yet another substantial development
project so I'm looking for a decent little FPGA implementation of a
PDP-11 that I could just pick up use for this purpose. Something that's
already debugged. I'm thinking cl
On 01/03/2018 03:03 PM, systems_glitch via cctalk wrote:
> Most IDC connectors will fit just fine. I've use old 40-pin IDE cables
> before. Beware that the keying boss may be too short for the old blue Berg
> housings, allowing the cable to be inserted upside-down (don't depend on
> the keying boss
On Wed, 3 Jan 2018, Rob Jarratt via cctalk wrote:
> The reason I say this is that when I set up the logic analyser to *stop*
> on a zero ROM address, it didn't. Which means it isn't resetting in the
> way I thought it was. When I traced the instruction addresses during
> boot up I could see lot
Chuck is right on about having the right tools. I use a Paladin (now
Greenlee) PA1645 for most of my wire housing crimp terminal needs. I've got
an older Weidmuller Mini Stripax wire stripper that works excellent, bought
it after having used one in a job in college.
I don't use the "official" tool
From: Steve Malikoff via cctalk: Wednesday, January 03, 2018 3:26 PM
Vince - thanks for the measurements, I will redraw a better 3-view using
those. Not sure about how the extra bolt goes though.
You're welcome, and thanks for your work on the drawing.
One thing I forgot to mention -- on mine,
good timing to ask. i ordered a similar connector that should do the job
off digikey. i am still waiting for it to get here in the mail. It was $20
or so after ordering the pins and the shipping. the particular connector i
ordered has a key on it that will need to be filed off to fit. once it gets
> As I recall with the ZX Spectrum there wasn't any "snow" on TV with a
> subsequent reset (as when pressing the reset button on the Plus
variation).
>
> Moreover DRAM refresh continued to work (presumably being driven by the R
> register of the Z80 CPU according to its machine cycles, although
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