lördag 19 augusti 2017 skrev Fritz Mueller via cctalk :
> On 08/17/2017 12:54 PM, Noel Chiappa via cctalk wrote:
>
>> Anyone out there have an LA30? :-)
>>
>
> For future reference, I am also working on an LA30 at the moment. I think
> Mattis has restored one as well?
Yes. That's right. Have a
A few years ago I got fed up with someone who kept telling how valuable his
stuff was based on eBay (asking) prices.
So I put a new US penny up for sale and has a buy it now price of $100 USD.
Next time I saw him I asked why he had
not bought it.
-pete
On Sat, Aug 19, 2017 at 6:44 PM, Mike Stein
Yeah, but I bet it's relatively quiet...
m
- Original Message -
From: "Chuck Guzis via cctalk"
To: "Ed via cctalk"
Sent: Saturday, August 19, 2017 6:10 PM
Subject: Re: This Is Such An Exciting Listing!
> Also, there's the prizewinner in the "slowest hard drive" category:
>
> http://w
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Noel
> Chiappa via cctalk
> Sent: 19 August 2017 23:26
> To: cctalk@classiccmp.org
> Cc: j...@mercury.lcs.mit.edu
> Subject: Re: DECstation 220. Another Impasse
>
> > From: Rob Jarratt
>
> >
Never heard of that site before, always wanted a VT125 and certainly reachable
from here. Will investigate!
Regards
Rob
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Paul
> Anderson via cctalk
> Sent: 19 August 2017 22:40
> To: Pete Hollobon ; G
> From: Rob Jarratt
> I have just written a new blog post
> the comparators are not producing valid output, the input signals are
> varying abave and below the reference voltage, but the outputs never
change.
Don't forget that when the output of chip A is wrong, that might be c
Also, there's the prizewinner in the "slowest hard drive" category:
http://www.ebay.com/itm/IBM-MAP3367NC-33P3373-36GB-1000-RPM-3-5-Ultra-320-SCSI-HDD-Hard-Drive/201908724683
--Chuck
On 8/19/2017 12:03 PM, Mazzini Alessandro via cctalk wrote:
We could debate about wang having a precedence. Various consider the
Programma101 the real first personal computer
It was my first in 4th grade, FWIW.
I realized by playing with one for 2 years+ that it was programmable,
and what t
Easy to fix...
On Sat, Aug 19, 2017 at 2:42 PM, Pete Hollobon via cctalk <
cctalk@classiccmp.org> wrote:
> Just spotted this Digital VT125 if anyone's interested. Sounds like it
> isn't working and is collection only, but £20 and open to offers...
>
> https://en.shpock.com/i/WZVkFoclWkj6QObu/
>
>
I miss the two Wang 360s+heads I had, more so now that I've seen on eBay a
Teletype interface.
Some day will have one again
-pete
On Sat, Aug 19, 2017 at 12:03 PM, Mazzini Alessandro via cctalk <
cctalk@classiccmp.org> wrote:
> We could debate about wang having a precedence. Various consider th
Just spotted this Digital VT125 if anyone's interested. Sounds like it
isn't working and is collection only, but £20 and open to offers...
https://en.shpock.com/i/WZVkFoclWkj6QObu/
cheers,
Pete.
I’m looking for information on MINC-11 systems, particularly documentation
on the CSR bit functions for
the MNCKW and MNCAD modules. Recently, Fred Jan Kraan added a great deal of
information to his excellent
web site on MINC-11 including the 8 MINC user manuals which to date did not
exist o
On 08/17/2017 12:54 PM, Noel Chiappa via cctalk wrote:
Anyone out there have an LA30? :-)
For future reference, I am also working on an LA30 at the moment. I
think Mattis has restored one as well?
Mine is a P, and I have the matching M7910 to go with it, so no need for
an M7389 here (sound
always fun to participle in a production Neat Congrats! Bill!
Ed#
In a message dated 8/19/2017 1:53:18 P.M. US Mountain Standard Time,
billdeg...@gmail.com writes:
On Sat, Aug 19, 2017 at 2:41 PM, Ed Sharpe via cctalk
wrote:
halt and catch fire show 2 hr tonite?
the story contin
On Sat, Aug 19, 2017 at 2:41 PM, Ed Sharpe via cctalk wrote:
> halt and catch fire show 2 hr tonite?
> the story continues..
> ed#
>
> Sent from AOL Mobile Mail
>
not that it matters much, but if you look on the tables and such during the
show, the magazines you see have cover overlays I sc
On 08/19/2017 11:29 AM, Rod Smallwood via cctalk wrote:
> Leaky Crowbar SCR?
>
Never heard of such a thing. SCRs are usually all the way
on, or all the way off. Why would it be sensitive to load on
the power supply?
Jon
A straightforward linear supply. We should be able to get that puppy working.
Looks like you have two of the same thing on G2, two +5V supplies. You could
take advantage of that and compare voltages of one against the other at several
points. You coukd also monitor the voltage on the non regulat
>
> How many connections does it have? If just 2 then it could well be a fuse. Not
> really to protect the machine in the event of flashover in a monitor putting
> high
> voltages on the lines, but rather to meet the legal requirements in some
> countries that any device linked to a modem needs
Maybe it's better to give us all the useful information these power
supplies, moreover it might be useful to other people with the same
computer.
An overall bloc diagram of the D-116 power supply including G1 and G2.
http://www.zeltrax.com/classiccmp_forum/psu_overall_bloc_diagram.jpg
The comp
We could debate about wang having a precedence. Various consider the
Programma101 the real first personal computer
-Messaggio originale-
Da: cctalk [mailto:cctalk-boun...@classiccmp.org] Per conto di Chuck Guzis via
cctalk
Inviato: sabato 19 agosto 2017 20:55
A: Rick Bensene via cctalk
O
On 08/19/2017 11:00 AM, Rick Bensene via cctalk wrote:
> The Programma 101 is indeed a benchmark machine in electronic calculator
> history. While not the first programmable electronic calculator as many
> claim, it definitely set the standard for a long time (especially during this
> particu
halt and catch fire show 2 hr tonite?
the story continues..
ed#
Sent from AOL Mobile Mail
> On Aug 19, 2017, at 11:08 AM, Jon Elson wrote:
> Currently $676, but I suspect will go higher.
_Much_ higher. The TU56 alone is worth several US$K. I'd look for
the whole thing to go for _at least_ US$3K.
Noel
This eBay listing makes me really happy that I bought a beautifully kept,
spotlessly clean Programma 101 with original dust cover, power cord, and
original sales receipt from Portland Typewriter & Office Machine Co. (Portland,
Oregon) for $300 in early 2013 from the original owner.The origin
> On Aug 19, 2017, at 11:08 AM, Jon Elson via cctalk
> wrote:
>
> On 08/19/2017 10:03 AM, Tony Aiuto via cctalk wrote:
>> A well priced PDP8 just went on sale in Iowa. I can't get it back from
>> Champaign to NYC, but someone else might be able to snatch it.
>> http://www.ebay.com/itm/Digital-E
On Sat, Aug 19, 2017 at 6:14 PM, Rob Jarratt via cctalk
wrote:
> For the time being I have decided to take a look at the other spare board,
> which works less well in that it does not produce any kind of video output
> at all, but on the basis that the 82C206 seems to be OK, it might be easier
>
>
> I have made an interesting, but sad, discovery. I traced both the two
apparently
> shorted pins on the gate array to two pins on the Chips & Technologies
82C206
> Integrated Peripherals Controller. Checking the 82C206, I found lots of
pins on
> that chip appear shorted to ground. I fear the
>
Leaky Crowbar SCR?
On 19/08/2017 17:06, Jon Elson via cctalk wrote:
On 08/19/2017 03:17 AM, Dominique Carlier via cctalk wrote:
Hello Marc,
In fact no, i am not really sure, I checked twice all the
big filtering caps but as you with a low voltage tester.
These caps comes apparently from a ne
On 08/19/2017 10:03 AM, Tony Aiuto via cctalk wrote:
A well priced PDP8 just went on sale in Iowa. I can't get it back from
Champaign to NYC, but someone else might be able to snatch it.
http://www.ebay.com/itm/Digital-Equipment-Corporation-DEC-PDP-lab8-e-Vintage-1970s-computer/15297190?_trkp
On 08/19/2017 09:36 AM, systems_glitch via cctalk wrote:
Indeed, I often do custom listings for people who need items shipped
overseas but for whom eBay will not correctly combine shipping. I usually
put up a listing with a stupid description and a picture completely
unrelated to what I'm selling
On 08/19/2017 03:17 AM, Dominique Carlier via cctalk wrote:
> Hello Marc,
>
> In fact no, i am not really sure, I checked twice all the
> big filtering caps but as you with a low voltage tester.
> These caps comes apparently from a new old stock and some
> doubts persists now.
> I admit, I don't kn
On 8/19/2017 8:17 AM, william degnan via cctalk wrote:
On Sat, Aug 19, 2017 at 11:07 AM, Tony Aiuto via cctalk <
cctalk@classiccmp.org> wrote:
http://www.ebay.com/itm/152665094101?ul_noapp=true
In good visual condition. Very expensive. Purposefully not powered up. I
used one of these in high
On Sat, Aug 19, 2017 at 11:07 AM, Tony Aiuto via cctalk <
cctalk@classiccmp.org> wrote:
> http://www.ebay.com/itm/152665094101?ul_noapp=true
>
> In good visual condition. Very expensive. Purposefully not powered up. I
> used one of these in high school, so it has always had a special place in
> my
http://www.ebay.com/itm/152665094101?ul_noapp=true
In good visual condition. Very expensive. Purposefully not powered up. I
used one of these in high school, so it has always had a special place in
my heart. But not a $34K place.
A well priced PDP8 just went on sale in Iowa. I can't get it back from
Champaign to NYC, but someone else might be able to snatch it.
http://www.ebay.com/itm/Digital-Equipment-Corporation-DEC-PDP-lab8-e-Vintage-1970s-computer/15297190?_trkparms=aid%3D888007%26algo%3DDISC.MBE%26ao%3D1%26asc%3D41
Indeed, I often do custom listings for people who need items shipped
overseas but for whom eBay will not correctly combine shipping. I usually
put up a listing with a stupid description and a picture completely
unrelated to what I'm selling, just to try and keep other people from
buying it.
Thanks
An easy way to check the caps is to see what the voltage across them is like
when you put the system under load and the 'regulated' voltage drops. If
the cap voltage drops substantially, or if you get a high ripple under load,
that's a good sign the caps are bad.
You mention that the +5V holds up
Hello Marc,
In fact no, i am not really sure, I checked twice all the big filtering
caps but as you with a low voltage tester. These caps comes apparently
from a new old stock and some doubts persists now.
I admit, I don't know how to test these caps at rated voltage with my
tools or in sit
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