VCFMW13 Talks & Presentations videos are up! Here's a YouTube
playlist with all of them for this year:
https://www.youtube.com/playlist?list=PLE-Iywr9LQERoM2Iy6EeO9ln5SdFnmnsW
I have four 9-track tape drives, and a dirty DEC rack, that I need to
get rid of.
Two of the drives are HP 7970B's. One has the door unattached. Then
there's a Kennedy 9100 800/1600 bpi drive.
Very heavy. As found, none tested by me. Just don't have time to play
with them.
Last is a CDC
> From: Alexandre Souza
> What about a nuclear bomb?
OK, if we're going to start being _really_ silly. drop them into a
singularity! :-)
The best part is that you'll get to watch them being ripped apart and
destroyed by tidal forces _forever_ (since time dilation means that as they
On 2018-Sep-21, at 4:03 PM, Noel Chiappa via cctalk wrote:
>> From: Brent Hilpert
>
>> In typical "down-converters" there are additional current paths in the
>> supply, paralleling the input path, that can provide the 'additional'
>> electron flow rate. ... the whole rationale of a switching
On 2018-Sep-21, at 4:03 PM, Noel Chiappa via cctalk wrote:
>> From: Brent Hilpert
>
>> If the heatsinks seem huge compared to modern day supplies, that's more
>> likely the result of technology improvements - faster devices, and
>> moving from bipolar switching transistors to mosfets. Bipolar
>>
On 2018-Sep-21, at 3:20 PM, Noel Chiappa via cctalk wrote:
>> From: Mattis Lind
>
>> The H744 is a buck converter. You can read about buck converters here:
>> https://en.wikipedia.org/wiki/Buck_converter
>
> Wow, that was incredibly hard to read; no clear and simple explanation of the
> basic
What about a nuclear bomb?
2018-09-21 20:05 GMT-03:00 dwight via cctalk :
> I'd think a nice blast with a oxy-acetylene torch should do what is
> needed. Even if it doesn't melt the disk, it will surely exceed the Currie
> point and all data is gone.
>
> Dwight
>
>
>
I'd think a nice blast with a oxy-acetylene torch should do what is needed.
Even if it doesn't melt the disk, it will surely exceed the Currie point and
all data is gone.
Dwight
From: cctalk on behalf of Jerry Weiss via
cctalk
Sent: Friday, September 21,
> From: Brent Hilpert
> In typical "down-converters" there are additional current paths in the
> supply, paralleling the input path, that can provide the 'additional'
> electron flow rate. ... the whole rationale of a switching supply is to
> use time (varying switching
On 2018-Sep-21, at 1:03 PM, Noel Chiappa via cctalk wrote:
> Oh, one thing I forgot to include:
>
>> a lot of the incoming power in that 30V AC has to be thrown away, in
>> producing +5V.
>
> So, if my understanding is correct, the 'switching' H744 really isn't much
> better than a classic
Noel said
> > From: Eric Smith
>
> > That's way too good for these
> From: Mattis Lind
> The H744 is a buck converter. You can read about buck converters here:
> https://en.wikipedia.org/wiki/Buck_converter
Wow, that was incredibly hard to read; no clear and simple explanation of the
basic concept of how it works, before getting into the details!
On 9/21/18 1:06 PM, Fred Cisin via cctalk wrote:
On Fri, 21 Sep 2018, Eric Smith via cctalk wrote:
That's way too good for these
>
> * If you supply a link & location to a schematic I'll take a look, I don't
> feel like wading around in bitsavers pdfs to try to find it right now.
page 207 of:
http://bitsavers.trailing-edge.com/pdf/dec/pdp11/1140/PDP-1140_System_Engr_Drawings_Rev_P_Jun74.pdf
All the molten lava is done. You could still smash it with a lava rock.
Dwight
From: cctalk on behalf of Chuck Guzis via
cctalk
Sent: Friday, September 21, 2018 11:36:25 AM
To: Fred Cisin via cctalk
Subject: Re: Advice requested on proper disposal of Seagate
On Fri, Sep 21, 2018 at 1:38 PM, Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:
> My understanding is that, without using a transformer (which creates an
> independent circuit loop - more below), there's no way to increase the
> _amperage_ out of circuit over what's fed into it: since
On 2018-Sep-21, at 12:38 PM, Noel Chiappa via cctalk wrote:
> So there's something about the H744 I'm not sure I understand; hopefully those
> with more analog-fu will set me straight if I'm confused.
>
> This supply runs off 20-30V AC. It takes the input AC, rectifies it, and runs
> it
Hi all,
I've got an VME Bus sized CPU or GPU Board out of ebay a while before,
it is equipped with 4 pcs of AM29203 Slices and an AM2910A Sequencer.
It sems to be a german Product.
The Sticker on one of the DIN 96 Connectors states:
GE2149G206 WNr. 10488 Grund- Baugruppe
Does anyone know what
Hi folks,
I am trying to find an out-of-print tech book for a research project I'm
doing. The book is called Porting Macintosh Applications to Windows 95 and
NT by Greg Stone, dated December 1996, ISBN 0471118516, published by Wiley.
It's listed on Amazon but not available; I've searched
5) as a test suite for development of thermite (Does Amazon sell pre-made
thermite?)
On Fri, 21 Sep 2018, Eric Smith via cctalk wrote:
Mostly #6, and a little bit of #5. I'd be delighted to offer "retaliation
in kind for the SS damage of drives of Steve Jackson Games", but I don't
think
The H744 is a buck converter. You can read about buck converters here:
https://en.wikipedia.org/wiki/Buck_converter
You have a good description there.
Den fre 21 sep. 2018 kl 22:03 skrev Noel Chiappa via cctalk <
cctalk@classiccmp.org>:
> Oh, one thing I forgot to include:
>
> > a lot of
Oh, one thing I forgot to include:
> a lot of the incoming power in that 30V AC has to be thrown away, in
> producing +5V.
So, if my understanding is correct, the 'switching' H744 really isn't much
better than a classic linear supply. It still wastes a very large amount of
the input
So there's something about the H744 I'm not sure I understand; hopefully those
with more analog-fu will set me straight if I'm confused.
This supply runs off 20-30V AC. It takes the input AC, rectifies it, and runs
it through a cap to filter out the ripple. What's next is that it's an early
On 09/21/2018 12:19 PM, Eric Smith via cctalk wrote:
> On Fri, Sep 21, 2018 at 6:04 AM, Bill Gunshannon via cctalk <
> cctalk@classiccmp.org> wrote:
>
>> Or just throw it in the garbage.
>
> That's way too good for these
> On Sep 21, 2018, at 11:16 AM, Eric Smith via cctalk
> wrote:
>
> On the other hand,
>
> 1) Reduce the likelihood that they will end up on eBay as "Seller
>> Refurbished" or "New, other".
>> 1b) to put on eBay as "New, other" or "seller refurbished", WITH PICTURES,
>> as a commentary on
> From: Eric Smith
> That's way too good for these
Anyone headed for Hawaii? It'd be interesting to see what some molten
lava would do to one...
--Chuck
Do any of the rifle ranges near Vegas rent use of a Browning 50 caliber
machine gun?
(or artillery?)
Maybe a VERY high powered laser cutter, to cut the letters N F G THROUGH
the drives.
Convince North Korea that there would be special symbolism to attaching
one to the nosecone of each of
On Friday (09/21/2018 at 11:42AM -0600), Eric Smith via cctalk wrote:
> On Fri, Sep 21, 2018 at 11:28 AM, Fred Cisin via cctalk <
> cctalk@classiccmp.org> wrote:
>
> > Put it in a gift-wrapped box next to you on the bus.
> > Whoever steals it will get just what they deserve.
> >
>
> :-)
>
> But
On Fri, Sep 21, 2018 at 12:06 PM, Fred Cisin via cctalk <
cctalk@classiccmp.org> wrote:
> Eric hasn't specified [and shouldn't have to] as to WHY,
> but here are some idle speculations:
>
Mostly #6, and a little bit of #5. I'd be delighted to offer "retaliation
in kind for the SS damage of
On Fri, 21 Sep 2018, Eric Smith via cctalk wrote:
That's way too good for these
On Fri, Sep 21, 2018 at 12:04:39PM +, Bill Gunshannon via cctalk wrote:
> Or just throw it in the garbage. [...]
More satisfying: write "Bitcoins" on it before leaving it lying around
somewhere it's likely to get stolen.
On 2018-09-21 13:42, Eric Smith via cctalk wrote:
> On Fri, Sep 21, 2018 at 11:28 AM, Fred Cisin via cctalk <
> cctalk@classiccmp.org> wrote:
>
>> Put it in a gift-wrapped box next to you on the bus.
>> Whoever steals it will get just what they deserve.
>>
>
> :-)
>
> But actually I wouldn't
On Fri, Sep 21, 2018 at 11:28 AM, Fred Cisin via cctalk <
cctalk@classiccmp.org> wrote:
> Put it in a gift-wrapped box next to you on the bus.
> Whoever steals it will get just what they deserve.
>
:-)
But actually I wouldn't wish ST3000DM001 drives on my worst enemy!
On Fri, Sep 21, 2018 at 07:13:48AM -0700, Donald via cctalk wrote:
> Mr. Hollerith's house is available.
Is it... a house of cards?
Thank you, I'll be here all week.
On Fri, 21 Sep 2018, Bill Gunshannon via cctalk wrote:
Or just throw it in the garbage. Do you really think people are going
thru your stuff looking for data?
Put it in a gift-wrapped box next to you on the bus.
Whoever steals it will get just what they deserve.
yea doing the same here at SMECC at some point we have a 2000
access system but probably needs work and and a disck drive and besides
who wants to power and cool it 24/7?
I need a couple extra front panels I make blink ( do not want to mess
with the ones
If I wanted to reduce a drive to slag, I’d just put it in a propane furnace
(actually the drive would
go into the crucible). They generate up to 2700F (~1500C) and they’re for
melting gold, silver, copper,
etc. So I suspect it would do the job. ;-) Plus you’d a nice molten mess
that you can
On Fri, Sep 21, 2018 at 8:18 AM, Pete Lancashire via cctalk <
cctalk@classiccmp.org> wrote:
> emulate an HP 2000 or even in modern 2100 my goal is nothing serious I'd
> love to be able to do HP basic and find the version of Star Trek I think
>
> If I could have my dream come true the emulator
Hmmm... OK take a giant sledge and beat the living hell out of it
Great physical release and data pretty well toast... and the sound is
glorious!
And besides you get some exercise!
Ed#
In a message dated 9/21/2018 9:20:25 AM US Mountain Standard Time,
On Fri, Sep 21, 2018 at 6:51 AM, systems_glitch via cctalk <
cctalk@classiccmp.org> wrote:
> Burning of potassium permanganate to manganese greensand will often get it
> going. You are on your own for figuring out how to do that.
>
Multiple sources, including Robert on this list, tell me just to
On Fri, Sep 21, 2018 at 6:04 AM, Bill Gunshannon via cctalk <
cctalk@classiccmp.org> wrote:
> Or just throw it in the garbage.
That's way too good for these
That board came out of the instrument it belongs to (a Beckman DU600),
which came out of the trash here. I've put quite a bit of time into
reverse engineering the hardware as well as porting and writing some
software. The most recent thing I've done with it is port an old version
of minix.
I will soon have a teletype model 35 all cleaned up and running
Why like is some suggestions for something I can put in the base and
emulate an HP 2000 or even in modern 2100 my goal is nothing serious I'd
love to be able to do HP basic and find the version of Star Trek I think
that was the name
Mr. Hollerith's house is available.
https://www.wsj.com/articles/forgotten-tech-pioneers-d-c-estate-asks-almost-
19-million-1537456578?emailToken=bb675bfcb9f6274f6e8c1b05ae28f2344xumjbywJXs
AwzIJYvBg3RJlRIZHZMV6ZNib7ahvK98qrcXxNgBADqPZCBCTTSWKSViH7isyQ4Ra78fLGOUMQtm
On 20 September 2018 at 23:20, Eric Smith via cctalk
wrote:
> Anyone have advice on making thermite? Ingredients, sources, proportions?
>
NIST SP 800-88 Rev. 1? There is some milspec about sanding the
platters that actually specified what grit to use but I do not
remember the title.
N.
Take them up to the 'range, around Virginia or Eveleth MN, and pay one of
the demo crews to stick the drives at the bottom of their next borehole.
Ka-blooey! Nothing left but an artificial bauxite deposit.
On Fri, Sep 21, 2018, 7:10 AM Bill Degnan via cctalk
wrote:
> I can only assume someone
Burning of potassium permanganate to manganese greensand will often get it
going. You are on your own for figuring out how to do that.
Thermite is not the ultimate destructive force some people seem to think it
is. If you're trying to totally liquefy the platters you'll probably need
to remove
I can only assume someone is paying you to do this for insurance or legal
purposes. There is a good poem, "John Barleycorn Must Die" which has a lot
of useful suggestions.
bill
On Fri, Sep 21, 2018 at 8:04 AM Bill Gunshannon via cctalk <
cctalk@classiccmp.org> wrote:
> Or just throw it in the
Or just throw it in the garbage. Do you really think people are going
thru your
stuff looking for data?
bill
On 09/20/2018 11:37 PM, drlegendre via cctalk wrote:
> If you're that intent on firey destruction, it would be much simpler &
> safer to use an oxyacetylene cutting torch, or a
If my memory of O Level chemistry classes is anything to go by, the
idea was that you used a piece of Magnesium ribbon to ignite it. I
don't recall Manganese Dioxide being part of the recipe.
On Thu, Sep 20, 2018 at 10:20 PM Eric Smith via cctalk
wrote:
>
> Anyone have advice on making thermite?
hi
has anyone ever used Hitex ICE for Motorola 68hc11?
if so, with which software?
cheers
> But, I've got one of these:
> https://hackaday.io/project/6150-beckman-du600-reverse-engineering
hi
where did you find it?
here I have an EVS board, by motorola :P
Be aware that a cheap way of making fairly pure oxygen is just by heating up
manganese dioxide, which will cause anything that is a like a flame to burn
much hotter. I remember doing an experiment in grade school where you heat up a
tablespoonfull of MD in a test tube with an alcohol burner or
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