-------------Original Message:
Date: Fri, 20 Mar 2009 16:36:28 -0700 (PDT)
From: Michael Hart <imsaicollector at yahoo.com>
Subject: Re: CompuPro CPU-68000
You know the hiring managers I normally talk to have no knowledge of hardware design.
So even if I am showing off my electrical engineering prowest by implementing a IEEE-696 memory board.
I have the Protel product (www.protel.com), a $4500 piece of software back in 1999/2000 which became Altium (http://www.altium.com/) used to design the most sophisticated hardware. The manufacturing of the boards I understand have become quite cheap. Anyway thank for URL.
But remember I am primarily as very senior software developer with lots of hardware know how. So how would that hardware know how be exploited in getting me contracts?
At least that has not been the interest when people look at me. But still it is a skill I would one day like to exploite in getting a contract
Michael
------------Snarky Comment:
Cleaning up your spelling and grammar couldn't hurt in getting those
contracts; some people do still care...
another michael
I've just started the rebuild of one of my PDP-8/Ms. This is an early
machine with the power supply mounted on the left of the chassis.
One potential problem I am slightly concerned about is that the front
two power transistors have been desoldered and removed. Does anyone know
if these are a vital part of the PSU and if so what the part numbers are
so I can try to source replacements?
You can see a picture here http://www.pdp8.co.uk/ (enlarged view here
http://www.pdp8.co.uk/files/2009/03/00016.jpg)
If anyone else has a PSU of this type, could they take the opportunity
to take a few pictures for me. Would be really useful to have another
reference source for the rebuild.
All the best,
Toby
--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.
Does anyone know of any list, group or museum for vintage (1970s) professional Audio/Video equipment enthusiasts? Of course vintage computers were a part of some of this A/V equipment, especially for control systems.
If this is off topic, any replies can be sent to my email directly ics65 at sbcglobal.net
,George
>
> Date: Mon, 30 Mar 2009 19:05:08 +0100 (BST)
> From: ard at p850ug1.demon.co.uk (Tony Duell)
> I don;t understnad this. How come if I put in my high bid several days
> before the end of the auction does it make others bid higher?
Because many of the buyers on Ebay are not rational--or at least, not what
you and I would consider rational. Rather than deciding ahead of time on
their maximum bid, they check the item over an over again during the
auction and if they've been outbid, they enter a higher bid--usually $2 at
a time, until theirs is the highest bid.
If you come along and outbid them, they will do this again. If there are
two of them, they'll do it to each other in a rather comical fashion (not
so comical if you want the item in question).
The only way to defeat these jokers is to not bid until the last moment,
depriving them of the chance to come nickel and dime you to death.
Even if they don't outbid you, several of their little increments will
drive your price up. Remember, you don't pay your bid amount, you pay a
fixed increment higher than the second highest bid amount.
Of course, from a seller's point of view, these folks are (maybe) useful.
Jeff Walther
Saw this on another forum. I don't know what the prices actually are,
but if you're in California maybe you can get to this person:
--begin--
title: IBM Clicky Keyboards 30+ and MORE XT AT Style KBs & Apple ADB
The title says it. We are shutting our business and have to be out of
the warehouse by April 13.
We have at 30 plus vintage IBM clicky keyboards and many many more AT XT
style keyboards, all with the big round DIN connector.
I'm asking $200 for all of IBM clickies and as many more as you can take
out for $50 more. We literally have hundreds of keyboards. Mostly
vintage, but some are newer PS/2 keyboards if you need them.
$250 and you can haul every keyboard we have --- well leave me half a
dozen newer "old" PS/2 and a couple Clickies I have at my work bench.
THE CATCH. We will not ship. You must come pick them up at our warehouse
in Oxnard Calif, on the coast about an hour north of Los Angeles.
APPLE? Did you say Apple ADB keyboards.?. We have those too. They all go
for that same $250.
Call Bob 805 486-0087 before we shut off the phone
How serious is this? We just got rid of over 6000 -- 3 tons of computer
monitors. We have to be out by the 13th of April.
---end---
--
Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
Help our electronic games project: http://www.mobygames.com/
Or check out some trippy MindCandy at http://www.mindcandydvd.com/
A child borne of the home computer wars: http://trixter.wordpress.com/
A while back there was a funny thread about a person who was making C64
power supplies by putting wall warts in an enclosure and selling them as
professional grade.
I came across my own questionable homemade power suppy recently. The
picture is here:
http://brutman.com/2009_0329_161949.jpg
This is supposed to feed an expanded PCjr that has two power inputs. It
looks like somebody broke open two PCjr power bricks and wired them in
parallel to one line cord, then glued the bottom of the exposed bricks
to keep them from bouncing around in the metal enclosure.
To me, this looks really ugly, and I'm suprised that somebody went to
this depth. The frames of the transformers were grounded, but the box
itself was not grounded.
I like the concept, I just don't like the way it was executed. It will
never look pretty, but is there a way to make it safe? Is it enough to
secure the transformers to the box in a more robust way, and then
connect the box to the ground, or should I just be thinking about
recycling the components?
Mike
----- Original Message ----- From: "Jim Battle" <frustum at pacbell.net>
To: "Jay West"
Sent: Saturday, March 28, 2009 7:23 PM
Subject: archive
> Jay,
>
> There has been a spate of cctalk emails about the archive not being
> online "for weeks." Perhaps it is because of the server migration you
> are doing, but I thought I'd mention it to you in case it is not
> expected.
>
> Thanks
Yep, archives are down temporarily because I'm having trouble with the
mailing list move. They have a choice - either the mailing list is down
for a while or the archives are. Nice to know they appreciate my work.
"For weeks"? Let the loudest complainer have the root password and do it
himself.
From: "Barry Watzman" <Watzman at neo.rr.com>
> First, re: "I hate [ebay] because it defrauded me in 2005", that is, in all
> probability, BS. E-Bay didn't defraud you, the other party (buyer or
> seller) did. E-Bay is not a principal to the transaction; it is merely a
> venue for bringing buyers and sellers together.
>
> Second, IF YOU KNOW HOW TO USE E-BAY, it is EXTREMELY safe.
> There are a surprising number of people with an aversion to E-Bay. That's
> their loss, because it's one of the greatest things that the Internet has
> brought us, both as buyers and as sellers.
First, my comments are being made as a FORMER small seller, and a very
rare buyer. oBay is the point of last resort when I need to buy
something. They USED to be one of the greatest things the Internet has
brought us, and it is their *past* reputation that continues to attract
people.
After about starting on ebay in 1997, I quit using them for several
reasons. The main reason is they put in quite a number of what *I*
consider to be unreasonable seller demands with absolutely no
accountability on their part.
Ebay is NOT, I repeat NOT just a venue!!!! To think it is "just" a venue
is absurd. And just to make it clear, I'm not attacking you, but rather
your comment.
I've heard too many stories of fraudulent transactions with the ebay
position being that it is not their problem. Just one example would be a
friend of mine (president of an amateur radio club at the time) had a
mint condition CD donated to their club. It was sold on oBay with
PayPal, a SNAD dispute was files, the box was returned and the buyer got
their money back. The box contained a junker and not the original radio.
Both oBay and PayPal said it was not their problem.
I really don't like gambling, and consider the use of that site for
selling nothing more than a crap shoot. The changes will continue, and
the small seller has no place on the site except as a scavanger.
It should also be pointed out that my comments refer to small sellers.
The larger sellers will absorb any problems which probably aren't even a
blip on their radar screens.
BTW, money orders are fine with most sellers, but the (mis)management
team prohibits sellers from letting buyers know. But that same
(mis)management tracks paper payments, and will sanction sellers that
take too many paper payments.
Yup, you did hit a hot button with your comments :).
Does anyone have a spare 8 bit ISA hard-disk controller,
something that would work in a IBM XT.
The current controller is damaged, and always reports
'1701' when the XT boots. I've tried known good hard-drives
without success so I'm pretty sure its the controller.
Please contact me of list.
Thanks
Ian.
