On Mar 30, 2017, at 4:17 PM, Rick Bensene via cctalk wrote:
> Hello, all,
>
> In mid-June, I am planning a trip to Mountain View for two days to visit the
> Computer History Museum.
>
> I plan on flying out of Portland early AM on June 14, checking into hotel,
> then heading straight to the
Hey guys, figured it was time for an update on the LGP-30 resuscitation.
Some further detective work found a leaky 1500uF cap in one of the B+ supplies
which was causing the 'surging' issue on the scope. For good measure I replaced
all six 1500 and 3000uF caps even though ripple was low.
On Mar 15, 2017, at 3:11 AM, Pontus Pihlgren via cctalk wrote:
> On Tue, Mar 14, 2017 at 05:41:57PM -0400, Noel Chiappa via cctalk wrote:
>>> From: Dwight Kelvey
>>
>>> I need on of those.
>>
>> I think it belongs in a museum, actually. Provided they can make it work, of
>> course! :-) I wonder
On Jul 29, 2017, at 10:08 AM, ANDY HOLT via cctalk wrote:
>
>
>
> Or on location, perhaps (I'm in the UK)
> A few years ago I had mine and my fathers 8mm films transcribed and I don't
> think it cost more than £50 for about a dozen reels. (I certainly wouldn't
> have paid £100 a reel)
>
On Tue, Jul 18, 2017 at 9:14 AM, Philipp Hachtmann via cctalk <
cctalk@classiccmp.org> wrote:
>
> On 18.07.2017 16:10, Bill Gunshannon via cctalk wrote:
>
>>
>> I would think it would be worth more in its original condition.
>>
>
> I'm not sure. Because it looks cool. And I'm not sure if an old
Hi Ali,
I've had a few things shipped lately and $250 isn't out of line. It's small
enough that you could try your luck on UShip; if you go that route the
pallet wouldn't be needed. If you use a traditional transporter, see if the
seller is willing to pick up a couple cheap nylon ratcheting tie
> On Thu, 17 Aug 2017, william degnan via cctalk wrote:
>> http://www.ebay.com/itm/Digital-Equipment-Corporation-DEC-PDP-lab8-e-Vintage-1970s-computer/15297190
>>
>> I hope someone my most-often-traversed groups (CCTech or VCFed) gets this!
>
> I'd love to keep 'an eye' on it, but I'm not
Can anyone ID what this panel is from? I picked it up recently for parts but
the more I study it the more I suspect it may have been part of a computer
system. At least one status light references 'No Write Ring'. The displays at
the top are terrific, 7-segment incandescent units!
Photos at:
On Fri, May 12, 2017 at 12:17 PM, Shoppa, Tim via cctalk <
cctalk@classiccmp.org> wrote:
> Cory asks:
> > http://www.radar58.com/panel/
>
> I had always thought Transistor Electronics Corporation had something to
> do with CDC (both in Minneapolis) but CHM tells me I was wrong: it was a
>
On Sep 10, 2017, at 4:24 PM, Fred Cisin via cctalk wrote:
> On Sun, 10 Sep 2017, couryho...@aol.com wrote:
>> then. who was. the TRUE first?
>
> Michael Shrayer's girlfriend?
> And what motivated him to write "Electric Pencil"?
> Jerry started using it early on, but he was NOT the
On Sep 10, 2017, at 12:22 PM, Noel Chiappa via cctalk wrote:
>> From: Brent Hilpert
>
> ...snip...
>
>> When/what/who was the actual first assembler conceived or produced?
>
> Noel wrote:
> A very good question indeed! Does anyone know?
>
> I have this bit set that one early computer
On Tue, Sep 26, 2017 at 12:21 AM, Ed Sharpe via cctalk <
cctalk@classiccmp.org> wrote:
> we see this same effect in large studio cameras on board monitors they
> have. we have just left as us as the large all tube innards do not work
> alas Ed#
>
> Sent from AOL Mobile Mail
>
> On Monday,
On Aug 26, 2017, at 5:50 PM, John H. Reinhardt via cctalk wrote:
> On 8/26/2017 4:02 PM, Pete Lancashire via cctalk wrote:
>> https://eauclaire.craigslist.org/atq/d/aa-occasional-sales/6248628617.html
>> Picture #8 in rear right corner
>
> And #11. It's got a keyboard and number pad so I'm
On Wed, May 2, 2018 at 10:22 AM, Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> On 05/02/2018 08:06 AM, Eric Christopherson via cctalk wrote:
>
> > When you say you snipe with a bot, do you mean you use eBay's highest-bid
> > functionality to do it? Or do you use third-party software?
>
On Feb 18, 2018, at 1:53 PM, Brent Hilpert via cctalk wrote:
>
> Paul Pierce has a G-15:
> http://www.piercefuller.com/collect/bendix/index.html
>
> Or he did, ca 2001.
>
> I would so like to be restoring a tube computer.
>
> How is Cory's LGP-30 project going, if he's reading?
On Feb 24, 2018, at 1:09 PM, Pete Lancashire via cctalk wrote:
> I have a small, 5-20 stack of 16 mm's of movies dealing with computers
>
> The one in front of me is
>
> "Once Upon a Punched Card"
>
> I am looking for a place in the USA with a reasonable price to have them
> digitized and I
If you can guarantee nothing will end up placed on top, it should be fine
strapped to a pallet. One thought would be to remove the feet and use the
bolt holes to attach it to a square of plywood, then screw that to the
pallet. Cinching a strap down over the top of it would probably not end
well.
Those retrace lines are likely an artifact of the brightness control being
set too high. It's pretty typical with older monochrome TV sets. It also
looks like there's insufficient vertical sweep, probably due to old
capacitors.
On a CRT that small, I wouldn't be concerned about direct fitting the
On Nov 19, 2018, at 7:28 PM, Alan Perry wrote:
> In the video that I looked at, the guy cut 8 1/8" pieces of double-sided foam
> tape, three each along the top and bottom and one on each side, then sealed
> it with clear packing tape. It seemed to me that using some optically clear
>
Reminds me of a few years ago when I bought some odds and ends out of a NASA
engineer's estate on the space coast. In the mix was a Selectric I/O service
manual (with NASA Prop stamps). What struck me as unusual was that it was for
the keyboard-less version. Yes, even though it was output-only,
Liam, thanks for posting this. What a wonderful way to waste an hour. ; )
I can also highly recommend the book 'Digital Apollo', which goes into some
detail about the man-machine interface of the AGC and the internal debate at
the time of the role of man as "spacecraft pilot". -C
On Sep 18,
On Wed, Mar 20, 2019 at 12:58 PM Al Kossow via cctalk
wrote:
> Josh scanned some Link Mark I documentation, and I found a pdf describing
> some of the history of early Link digital flight simulators
>
> uploaded to:
>
> http://bitsavers.org/pdf/generalPrecision/Link_Mark_I
Interesting reading,
On Tue, Feb 19, 2019 at 11:03 AM Peter Coghlan via cctalk <
cctalk@classiccmp.org> wrote:
> >
> > Old tech, but not computers:
> >
> >
> https://madison.com/business/galesville-antique-phone-dealers-looking-to-offload-vast-collection/article_b1845009-c861-50ff-82c8-60a15866fc6d.html
> >
>
>
>
On Tue, Apr 16, 2019 at 11:08 AM Noel Chiappa via cctalk <
cctalk@classiccmp.org> wrote:
> > From: Christian Corti
>
> > 3710 Euro... someone with definitely too much money ... So no, we did
> > not get the system, and it probably won't go into a museum.
>
> Well, I did send you email
On Jun 3, 2019, at 7:33 PM, Grant Taylor via cctalk wrote:
> On 6/3/19 5:10 PM, steven stengel via cctalk wrote:
>> I really just want it out of her house.
>
> You might be able to find a resale shop that will pick up items (donations)
> from peoples houses.
>
> Many of them around my house
Hey Guys,
I recently picked up an MDS 6401 Key-To-Tape unit in NCR guise to park next to
my keypunches. It's been in storage for a couple decades and is in pretty
decent shape. Even has a tape on it from when the university that had it pulled
the plug and sent it off for surplus. Found an
On Mon, Oct 21, 2019 at 11:51 AM Tony Duell via cctalk <
cctalk@classiccmp.org> wrote:
> > Theinfrared array you're thinking of was invented at PLATO, for flat
> panel (plasma) displays. They don't work for CRTs because of the convex
> screen.
>
> My HP150 will have to disagree with you there.
>
I found myself cleaning up the shop recently, and came across some vintage
circuit boards I had stashed away 20 years ago. I’m curious if anyone can shed
some light on what systems they originally went to. Here’s a link to the
album…more info below.
https://photos.app.goo.gl/amRmm5P8375js4o1A
> On Jun 20, 2021, at 12:19 PM, Norman Jaffe via cctech
> wrote:
>
> Basically, pre-1960, there couldn't be a 'general book on programming', since
> every system was a unique environment - the only languages that could even be
> remotely considered to be common were ALGOL 60 and FORTRAN
> On Mar 13, 2021, at 3:24 PM, Jos Dreesen via cctalk
> wrote:
>
> On 13.03.21 20:43, Cory Heisterkamp via cctalk wrote:
>> I’m wondering if anyone recognizes this PCB. Double-sided, 74xx vintage,
>> measuring 14”x15”. There’s a “B.I.” logo in one corner, but no g
I’m wondering if anyone recognizes this PCB. Double-sided, 74xx vintage,
measuring 14”x15”. There’s a “B.I.” logo in one corner, but no google match. IC
date codes are ’77/’78 vintage.
There’s a pair of DB-25’s, a BCD encoder, and for some reason, two pots. DC
rectification appears to take
This is a bit of a long shot, but is anyone aware of a successful method to
read IBM Selectric MT/ST tapes? A museum in Australia has a box of them and are
interested in the contents.
I'm fairly involved in the global Selectric community and while 1 or 2 MT/ST’s
exist, they’re non-functional.
> On Jul 29, 2021, at 12:46 PM, Chuck Guzis via cctalk
> wrote:
>
> A link I forgot to include that gives a flavor of how the tapes are used:
>
> https://files.eric.ed.gov/fulltext/ED112083.pdf
>
> Curious thing is that was no take-up reel on the MT/ST; the 100 feet of
> tape simply was
Does anyone recognize these IBM modules? My gut says late 50’s based on the
transistor packages and font. Perhaps for a contract or military system?
Thanks- Cory
https://www.dropbox.com/s/izitf1lmjqwcbuo/IBM1.jpg?dl=0
https://www.dropbox.com/s/dq8macaubrechkz/IBM2.jpg?dl=0
> On Aug 1, 2021, at 8:28 AM, William Donzelli wrote:
>
> I think those are IBM Q-Pacs, mil spec modules for the Informer computers.
>
> --
> Will
>
> On Sun, Aug 1, 2021 at 1:53 AM Cory Heisterkamp via cctalk
> wrote:
>>
>> Does anyone recognize t
Hey Guys,
I was curious if anyone recognizes this punched card reader. Marked: AMP
Incorporated - SYSCOM Division.
It’s extremely well-built; pulling the lever at right moves the chrome lip
forward and ejects the card. Case is rather stylized which suggests it was
free-standing.
Pics here:
On Tue, Oct 11, 2022 at 4:25 PM Fred Cisin via cctalk
wrote:
>
> On Tue, 11 Oct 2022, Cory Heisterkamp via cctalk wrote:
>> If the seller has a few “worthless” diskettes laying around, he can
>> include one in each case and now the package qualifies under media mail
>&
> On Oct 11, 2022, at 1:51 AM, D. Resor via cctalk
> wrote:
>
> Does anyone have, or know of a reasonably priced supplier of good clean
> used, or new 8" floppy diskette boxes? The kind made of plastic like these?
>
> https://www.ebay.com/itm/134258177087
>
> I have one 8" box with Xerox
> On Oct 7, 2022, at 6:14 PM, ben via cctalk wrote:
>
> Trying to hide the fact the drum makes it slow.
> Did any one ever replace the drum with core memory, on the early serial
> computers?
> Ben.
>
While not in the interest of increasing throughput, “vintage” computers with
drums that
> On Jun 3, 2023, at 7:12 PM, Alexander Schreiber via cctalk
> wrote:
> So the Mercedes T model was (at least in Germany, the manufacturers country)
> never called a "station wagon" because that category name doesn't exist
> there. The closest analogue to it in German parlance would be the
My personal experience with DTV boxes (and I do have a small assortment I use
routinely), is that the analog pass-through only functions with the box off (RF
in->RF out), so no chance of A/V extraction in that case. The majority of newer
boxes have eliminated the pass-through option entirely.
41 matches
Mail list logo
