Hello, All,
Many thanks to those who offered assistance in my attempt to change my address on the list. I was successful. Apparently, the sixth time is the charm.
Previous to writing, I followed the methods listed in the suggestions, including changing my current account, and adding a new account. Nothing worked. I went in through the main page of classiccmp.org. But, when I followed the links given in the suggestion messages, it worked. I don't understand it, but, I accept the results. <Grin> Again, thank you to all who responded, publicly and privately... This is a good crowd.
Sincerely,
Warren Wolfe
Now that my VT220 is working again after I replaced the defective
LK201 keyboard, the 11/23+ (4 Mb, two RL02's) it's attached to has
died!!
Last week, although the keyboard was dead, it would come up as far
as the prompt:
2048. KW
START?
to which I couldn't enter the usual "Y", of course.
Now nothing comes up at all and the RUN lamp lights for about 3
seconds, then goes out. About 6-8 seconds later it flashes
briefly. Entering various things from the keyboard e.g. Y<CR>,
773000G<CR> etc. has no apparent effect. Installing the "Field
Service Test Jumper" (console port loopback) causes characters to
echo to the screen, so the VT220 and port are ok.
I pulled all the boards except the CPU - no change.
+5 and +12 supplies (measured on the board) are spot-on according
to my Fluke DVM.
LED's lit on the KDF-11BA board are: green (Power), and D4 and D5
(the two LSB red ones). If the HALT front panel switch is down,
then all four red LED's stay on after flipping the restart switch.
Can someone point me to a table of the diagnostic LED meanings?
The KDF-11BA User Manual mentions them but I can't find a list of
just what they indicate.
thanks for any helpful hints
-Charles
Ft Walton Beach / Crestview - well, you can sit around and watch the grass grow.....
Seriously - ain't "nuttin' fer miles around."
If you're driving, you can check around local thrift shops and mom -n- pop computer shops.
Check to see where the Gov't/military surplus depots are...
other than that, you're kinda' stuck - that's the bush... not to mention the area is relatively barren,
as that is sort of a military area, and most of the troops are deployed, so some areas are ghost towns.
Friend of mine just moved back down here to Miami from Crestview, as he had to close up shop on his
computer store, as there was just not enough business - everyone's gone.
Sean - mebbe we need to get together and see if we can swap stuff :)
Ping me offline.
Tony
-----Original Message-----
From: Sean Conner spc at conman.org
Sent 10/16/2008 8:29:43 PM
To: General Discussion: On-Topic and Off-Topic Posts cctalk at classiccmp.org
Subject: Re: Things to do in Florida panhandle?
It was thus said that the Great Evan Koblentz once stated:
I'm making plans to be in the Florida panhandle on May 2nd next year. (a
relative's college graduation). I will be staying in Fort Walton Beach,
although I can get a rental car. Anything to do there for a vintage
computer geek like me? Or, anyone have a big collection there and just want
to hang out?
I have a collection, but I'm way down the peninsula in Boca Raton, home of
the IBM PC (and just around the corner from the former home of IBM Boca
Raton). And aside from that, I'm not aware of anything else classic
computer related in Florida.
-spc (Blue Lake ... um, T-Rex (as it's now known) is quite impressive)
Emulith, my ETH / Diser Lilith emulator is nearly complete.
However I would really appriciate if someone with a good grasp
of X11/xlib programming could have a look at the sourcecode.
I am looking at tips to speed up the program, currently it
runs, on my AMD64 2 GHz, at somewhat the speed of the real thing (7 MHz).
There must be ways to speed it up...
Any takers ?
Jos
Now that the current Sun keyboards are USB and don't feel like mush (like
the Type 6 does), I'm pondering getting a Type 7. Furthermore, I'm
thinking that perhaps other vendors of Linux machines should start
offering Type 7 keyboards. If you think about it, such a keyboard would
be perfect for getting people to use [lu]n[iu]x given the action keys
along the left side.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
After my last batch of Altos machines I managed to acquire a nice Alto's 580. I believe it is the HD model because there is only a single floppy in it. It came with some software most of it originals (MPM, Diags, etc) and about 10 or so original manuals. It powers up fine but I don't have the cable to hook it up to my terminal. The terminal I have is an ADDs model with keyboard/CRT that I am also considering selling (have the manual for this too).
I have maintenance kits, toner kits, font cartridges, RAM font
cartridges (LN03X), and a LN03 Programmer Reference Manual.
Any interest ?
Make an offer on any item (toner kit, maintenance kit, font
cartridges, the manual, etc)....
-- Curt
Hi, all,
>From the amount of traffic my questions spawned, I thought it only fair
to post a follow-up. I built the 74LS02 circuit nearly as described,
but with no cap between the PET and the horizontal sync inverter. I
wasn't surprised when I got nothing on an LCD with composite input, so
I dragged out the 9" mono security monitor and was instantly rewarded
with a PET BASIC prompt - the only problem was that I couldn't lock
in the horizontal. I could get close, so that it was mostly stable,
but over time, it would roll faster and faster, no matter how I
tweaked the monitor.
I tried the "PET Revealed" trick of a pot on the hsync pull-down, but
that didn't seem to make much of an impact, and neither did removing
it entirely.
So I was able to see the PET work, but from a use standpoint, don't
quite have the right tweaks on the basic circuit. I'm out of time
for the season, or I'd keep fiddling with it (we could get new folks
in here in as little as a week, if all the early-season plans go
well, and weather permitting, as always).
Thanks for all the feedback. I understand things a lot better now,
and I'm happy to say that the first time I powered it up, I got
recognizable video, even if it did list to port a bit.
-ethan
--
Ethan Dicks, A-333-S Current South Pole Weather at 16-Oct-2008 at 15:00 Z
South Pole Station
PSC 468 Box 400 Temp -59.3 F (-50.7 C) Windchill -86.4 F (-65.8 C)
APO AP 96598 Wind 7.0 kts Grid 336 Barometer 672.2 mb (10924 ft)
Ethan.Dicks at usap.govhttp://penguincentral.com/penguincentral.html
Was wondering if 3.5" HD floppy drives can be jumpered/used in
a system that only supports 720K, using them as 720K only
drives ?
I only own one 720K floppy drive (wouldn't mind a few more).
If that is possible, and only possible with some drives, anyone know
if it is possible with any of the following:
Panasonic JU-257A827P
Panasonic JU-256A216P
Sony MP-F17W-09 SMM
Samsung SFD-321D/T
Epson SMD-1300
TEAC FD-235HF
Also, anyone know if there if it is possible to slow the spindle speed
so that 1.44M can be done on machines that only have DD data rate ?
(and if so, any of the above drives capable of being slowed ?) Would
that even work ?
-- Curt
>
> >Jeff Erwin said the following on 10/14/2008 1:56 PM:
> >> The Starplex was the NS answer to the MDS, but was much more 'late 70's'
> in
> >> its design. The prom programmer was built into the system, as was the
> >> screen and floppy drives. All very modular. I learned asm80 writing
> the
> >> editor and assembler for that beast.
> ?>>
> >>
> >snip
> >> Version 4 was radically different from the 3.X and prior versions. The
> >> earlier versions used the $X controls, version 4 used the controls that
> were
> >> then used in the PLM86 compiler. Also, the DATA statement was
> eliminated
> >> and other language constructs were changed. PLM80 V3 code would not
> compile
> >> without mods. I remember it being released at about the same time the
> 8086
> >> and PLM86 was was released and the effort was to make PLM80 and PLM86
> >> somewhat similar. The PLM80 3.x docs are pretty much worthless if you
> are
> >> using the 4.0 compiler. 4.0 was also one executable, a big change from
> the
> >> PLM81 and PLM82 2-pass method the earlier versions used.
> >>
> >>
> >
> >I'm confused. I have V4 of the "resident" compiler, that is, the one
> >that runs on an MDS Series II or MDS-800. Those machines had either an
> >8080 or an 8085 cpu. I'm putting in a very small screen shot below of
> >the files. Hopefully this is ok for the list. It shows that there are
> >6 overlay files to this compiler. It is not one monolithic executable.
> >Are you sure you aren't talking about the PL/M-86 compiler that runs on
> >an MDS Series III? That one is 8086-based.
> >
> >If, indeed, you have an 8080-based compiler for PL/M-80 that is one
> >large file, I would like to see that. It is new to me.
I think we are both right, although I am guilt of not being clearer. The
earlier versions required two executables, plm81 and plm82. Version 4 went
to a single executable with 7 overlays, plm80.ov0 to plm80.ov6. I think
this is what you are seeing. It isn't really 'one big executable' so I
misspoke. If you see the overlays, you have version 4.
The source for CPM (2.2 I think) seems to be in the PLM80 v4 format, I am
picking up a lot of the specifics from there, but if you can find the actual
docs...!
Thanks for looking.
By the way, your boss was right to be wary of National Semi in those days,
the management of the group creating Starplex was pretty squirrely. I
stayed a year out of school before I was hired by INtel and moved to
Oregon. Intel was a $300M company when I went there!
Jeff
>
> >
> >snip
> >>
> >> I'd love to get a copy of whatever you have relative to 4.0. Emailing
> the
> >> PDF is probably easiest, I am more than happy to pay any costs
> associated.
> >>
> >>
>
> >I did a quick look for my plm docs and didn't find them. I'll look more
> >tonight. I know they are in my "collection", just have to find them.
>
> snip
> >
> >Let me know more about your PL/M-80 compiler, if you can.
> >
> >Dave
>
>
