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I just received a call. He has a KayPro 2 and KayPro 4 that he'd like to
sell.
They are located in Ottawa, Canada.
What's the going price for these?
Earlier tonight I had a cybernex terminal, a wang and a S-100 machine dropped
off, as well as a Hyperion and a Toshiba T5200/100. A Zeus should be
arriving latter on.
- --
Ottawa, Canada
Collector of vintage computers
http://www.ncf.ca/~ba600
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I figure there's pretty much zero chance of this, but thought I'd ask :)
I have an HP 7906 drive that is rackmounted in one of the "newer" style
cream colored rounded edge HP racks. I want to mount it in one of the older
dark grey HP racks. The mounts are completely different. So, I'm looking for
7906 drive rails that go in the older style cabinet. I do have L brackets
that go in the older cabinets, but with 7906 drives it's pretty important to
be able to pull them out a bit and work on the bottom.
Anyone have a set for trade?
Jay West
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[This E-mail scanned for viruses by Declude Virus]
On Mar 8, 11:01, Paul Koning wrote:
> Pete> You can, but I was always told (and read somewhere) there
> Pete> should be two stripes between, not one.
>
> Interesting. Your source is mistaken... Quoting from the Ethernet
> Specification, Version 2 (DEC/Intel/Xerox), section 7.6.2:
Makes sense, I can't think of any reason to require a minimum of two
"intervals" (for want of a better word). See my other post; I bet the
book has simply been misinterpreted a few times, and that's where most
peopel got it from (the standard itself didn't used to be terribly
accessible).
--
Pete Peter Turnbull
Network Manager
University of York
On Mar 8, 16:10, Johnny Billquist wrote:
> I'm pretty sure that the stripes are at 2.5 m.
They are. I'm looking at a length of etherhose right now.
> I'm also pretty sure that the standard says you should have 5 meters
> between transcievers.
That's what I thought, but I don't actually have a copy of the
standard, just my well-thumbed copy of Charles Spurgeon's "Ethernet"
book. It says the stripes are 2.5m apart but transceivers can be
placed at 5m or 7.5m or any multiple of 2.5. Well, 2.5 is a multiple
(in the mathematician's sense of 1 x 2.5) so maybe 2.5 is OK.
> But I have actually never really understood why. Maybe just to not
damage
> the cable to much with vampire taps? There cannot be an electrical or
> signal reason for this, as far as I can tell.
I can't think of one either. The reason for the 2.5m spacing is that
it's an odd fraction (about 1/19th) of a wavelength, so when you put
taps on the cable, the small reflections caused by the discontinuities
are out of phase and don't tend to be additive.
--
Pete Peter Turnbull
Network Manager
University of York
This was too good not to pass on!
Joe
>
> Start with a cage containing five monkeys. Inside the cage, hang a
>banana on a string and place a set of stairs under it. Before long, a
>monkey will go to the stairs and start to climb towards the banana. As
>soon as he touches the stairs, spray all of the other monkeys with cold
>water. After a while, another monkey makes an attempt with the same
>result - all the other monkeys are sprayed with cold water. Pretty
>soon, when another monkey tries to climb the stairs, the other monkeys
>will try to prevent it.
>
> Now, put away the cold water. Remove one monkey from the cage and
>replace it with a new one. The new monkey sees the banana and wants to
>climb the stairs. To his surprise and horror, all of the other monkeys
>attack him. After another attempt and attack, he knows that if he tries
>to climb the stairs, he will be assaulted. Next, remove another of the
>original five monkeys and replace it with a new one. The newcomer goes
>to the stairs and is attacked. The previous newcomer takes part in the
>punishment with enthusiasm!
>
> Likewise, replace a third original monkey with a new one, then a
>fourth, and then the fifth. Every time the newest monkey takes to the
>stairs, he is attacked. Most of the monkeys that are beating him have
>no idea why they were not permitted to climb the stairs or why they are
>participating in the beating of the newest monkey. After replacing all
>the original monkeys, none of the remaining monkeys have ever been
>sprayed with cold water. Nevertheless, no monkey ever again approaches
>the stairs to try for the banana. Why not? Because as far as they know
>that's the way it's always been done around here.
>
> And that, my friends, is how company policy begins.
>
>
At 10:43 AM 3/8/04 -0500, you wrote:
>Not affiliated with seller.
>These don't look like anything I've seen before.
>
>"20 HP Calculator RAM Mod's #5 1818-2805 NEW"
>http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2792071263
>
>The seller here says Calculator. I wouldn't jump so quickly to that
>conclusion. In the slim chance they fit something a lister has...
Idiot! They're OS ROM (R O M) modules for a HP 9835 calculator. They're
totally useless for anything else.
Joe
More:
"The ROMs used in the 9835 are rather unusual. The ROM carriers look
exactly like the ROMs for the HP 9825 but without labels. But instead of
only holding one ROM, each carrier has sockets for four ROMs. The
individual ROMs are small square boxes similar to those used in the HP 85.
The 9835 ROMs come in sets of 1, 2 or 4 individual ROMs and the ROMs can be
mounted in any order in the carrier or in any position in the 9835. The
fourteen operating system ROMs are similarly mounted in a pull out drawer
on the left side of the 9835. Flash! I've just learned that one collector
has a 9835 with ROM drawers that hold six ROMs each instead of four. That's
something that I haven't heard of before. "
See more at <http://www.classiccmp.org/hp/hp9835.htm>
Joe
Not affiliated with seller.
These don't look like anything I've seen before.
"20 HP Calculator RAM Mod's #5 1818-2805 NEW"
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2792071263
The seller here says Calculator. I wouldn't jump so quickly to that
conclusion. In the slim chance they fit something a lister has...
John A.
Hi,
Does anyone know how much 3-phase power (at say 220v) a KL-10 requires?
I just acquired some commercial space to move my collection into and I
noticed today that there are several 220v 3-phase power drops that I
hadn't noticed previously. I'm kind of hoping that I'll have enough
3-phase to be able to start resurecting my KL-10, but I need to know how
much I need.
Thanks.
--
TTFN - Guy
