My heathkit H-89, which used SSHS mounted vertically, had a note in the
manual that using "flippy" diskettes was not recommended, as dirt and
suchlike (which collects on the liner during normal operation) was likely
to fall out if the disk were flipped, and thus run backwards.
S'pose that was so they could sell you more disks, or was there some truth
to that?
I can think of very few home units which had vertically mounted drives...
Trash-80's are all that come to mind.
P Manney
>"Flippy": The second side can often be used in a single sided drive by
>flipping the disk over. In the case of Apple ][ and Commodore, it
>requires punching a write enable notch. (Which does NOT need to be square.)
>On TRS-80, IBM, etc, it is necessary to also punch an additional
>(symmetric) access hole for the index hole. (jigs for marking and
>punching used to be available.)
At 10:01 AM 1/21/99 -0800, you wrote:
>One thing I find interesting is that I rarely find anyone talking about
>their finds on ebay; why not?
okay, I was waiting until I was able to do more research, but...
For $5 and shipping, I got (on eBay!) a Sharp PC-5000 laptop. No biggie
you think? Well, for starters, from what I can tell, it beats the Gavilan
out for second place in the Clamshell laptop race (GRiD Compass was first).
On top of that, it beats the Gavilan for: removeable program/data
cartridges (uses Bubble Memory carts) clamshell with a built-in portable
printer, and something else I forget at the moment.
It's pretty cool, and a lot cheaper than some of the commoner stuff I've
gotten. Other eBay scores: V-Marc 88a portable computer, NEC PC-8201 (not
the 8201A), I'm sure there are more, but I have to go pick up my dad.
eBay can be useful, but it's takes time to look for old computers. Try
doing a search on "Donald Duck" (with the quotes) -- that's a piece of
cake. Look for computer and you get a lot of junk. Look for "vintage" and
you miss a lot.
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.sinasohn.com/
>unattended outside my house! Anyway, yes I've a
>second line and what happens is that it does ring
>but when I answer it (feeling rather besides myself)
>there is dead air. What I'm dialing, other than myself, is a
If you really want to feel funny, sometimes you can whistle
into the phone, experiment with the pitch and trick the
calling modem enough to get *IT* to start squealing. Of
course, the ultimate test would be to set up a modem to
answer on your 2nd line and troubleshoot from there.
Chuck
cswiger(a)widomaker.com
On Wed, 20 Jan 1999, Tony Duell wrote:
> Current machines aren't like that at all. So I am wondering if there will
> be any '10 year old' machines in 2009 or whenever. I bet some of us are
> still discussing PDP11s and PDP8s and PERQs and CDCs and.... in that year :-)
If someone has an honest question about a 10-year-old computer, by all
means, let them ask. But, there isn't too much traffic on this list about
PC hardware, and that's not going to grow as the PC market share declines
(it can hardly increase). And the thing is, as you say, little can be done
for PC hardware. If it's dead, it's dead.
> Personally, I'd include the IBM PC (5150) and maybe the XT (5160),
> portable (5155) and AT (5170). Like it or not, they had a significant
> impact on computing. But I don't think I'll ever think of a generic
> PC-clone, no matter how old, as a 'classic'.
'Classic' carries some connotation of class or of being nostalgic, etc.
Hardly any PC clones do that. Also, a generic ISA machine is hardly a
collectible item, so, again, I doubt they will generate much traffic as
time goes on.
In a message dated 1/22/99 9:19:59 AM Pacific Standard Time,
george(a)racsys.rt.rain.com writes:
<< Made sense to me... In my meager days (while going to school) I turned
over and used Apple ][ floppy's. I wouldn't say they didn't hold up but I
did have enough disk errors on diskettes I did this with to decide to quit
the practice.
And yes I do wish I had not ever done this. >>
i made many disks flippies so i didnt have to carry so many around and never
had a disk failure. Of course, i always bought double sided disks instead of
single side disks since supposedly both sides were certified error free rather
than just one side.
david
At 12:57 AM 1/13/99 -0600, you wrote:
>>Gag? Mechanical computers are serious stuff, Hans. Like Danny Hillis'
>>tinker-toy tic-tic-toe machine:
>There was another one, but I can't seem to find the page now.
Found it... Dunno if it still exists (can't access the web at the moment)
but here's the URL:
http://legowww.homepages.com/projects/adding/project2.html
--------------------------------------------------------------------- O-
Uncle Roger "There is pleasure pure in being mad
roger(a)sinasohn.com that none but madmen know."
Roger Louis Sinasohn & Associates
San Francisco, California http://www.sinasohn.com/
Panasonic 200U with 32K memory, Instruction book, box (pretty beat up).
Nothing happens on the screen when it's turned on, and beeps each time a key
is pressed. The unit is on fine shape (cosmetically), though. It;s a flat
CoCo-looking thing, with rubber chicklet keys. I can send a pic to anyone
interested.
Following the current practice, I guess I'll ask $8,500 on eBay, but I
thought I'd offer it for a discount (say, $8,499.95) to the group. Anyone
interested for the price of shipping and a few bucks?
manney(a)hmcltd.net
(please note address change)
> I don't know if it's on topic but I got back my bid report from Berman
and
> some folks have asked me to record the prices so here they are: (Berman
==
> www.berman.com)
>
> A pallet of four NeXT cubes w/Monitors and drives $325
> A pallet of Tektronix plugins $297
> An SGI Crimson Server $210
> A Sun 4/330 (Dual CPU) Server $60
> A set of three SparcStation IIs $501
> A complete Mac IIci (printer, monitor the works) $70
Any Idea what the Tek plugins were and how many?
Philip.
Yes, I know, this is way off-topic, but the board I recently
obtained is unique... I was hoping someone on this list might
be able to give me an off-line pointer to info...
I obtained a PCI board produced by Evans and Sutherland which
is labelled 'RealImage 1000' and appears to be VGA compatible.
In an Alpha 600au, it identifies as Eclipse 4D30T... it has
an angled slot for a DIMM module, and I know the board comes
in 20 Mb and 32 Mb configurations.
I apparently supports (or is supported by) OpenGL...
I'd like to get as much bits 'n bytes (tm) level programming
info on this board, as well as information on what sort of
DIMM I need. The 32 Mb Dimm I have doesn't look anything like
the one I see in a picture of the board, so maybe some of the
32 Mb is already on-board.
Anyway, anyone with any information on this board, please
contact me, I'd like to see if I can get it running on
my Linux box.
Thanks in advance...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
Prime 2455 - free to good home - collect from Cardiff
Introduced 1987, 1.2 Mips.
Cabinet, CPU, 8Mb memory, SCSI controller, internal cables, PSU
No disk drive; no tape drive; PSU does not work - PSU fault light
remains on - it broke when I turned my washing machine on!
A few hardware and software documents
Approx dimensions 75H x 30W x 77D cm. Feels more than 50kg or maybe
I'm just getting old.
I'm more into DEC so havn't the time or space for this one. If
nobody wants it, its off to the recycling depot.
Doug.
