On Thu, 12 May 2022, Peter Coghlan wrote:
about it? Maybe it would be more accurate to use terms like steady voltage
and alternating voltage? Alternating doesn't seem like that good a term
In German it's exactly like you suggest it. We say "Gleichspannung" (=
constant/steady voltage) and "Wec
https://archive.computerhistory.org/resources/access/text/2018/11/102740473-05-01-acc.pdf
??
On Wed, May 11, 2022 at 3:08 AM ED SHARPE via cctalk
wrote:
>
> Were did you find that reference. Gavin?
>
> Sent from the all new AOL app for Android
>
> On Tue, May 10, 2022 at 5:02 PM, Gavin Scott w
YEP THAT IS PART OF TE PICTURE THX ED#
In a message dated 5/12/2022 3:22:23 AM US Mountain Standard Time,
cctalk@classiccmp.org writes:
https://archive.computerhistory.org/resources/access/text/2018/11/102740473-05-01-acc.pdf
??
On Wed, May 11, 2022 at 3:08 AM ED SHARPE via cctalk
wrote:
Maciej W. Rozycki wrote:
> On Thu, 12 May 2022, Peter Coghlan via cctalk wrote:
>
>> Anyway, the good news is that I think I have found the source of the
>> problem. One of the capacitors used to filter the (DC?, pulsed DC?,
>> rippled DC?, biased AC?) supply to the 9V regulator is marked 330uF/
>
> Wayne: AC DC terminology has been well documented since the 1800's.
> Don't try to reinvent the terms or no one will know what you are talking
> about.
> I answered a few things below...
>
They didn't have switch mode power supplies in the 1800s. Terms like AC and
DC as understood back th
On 2022-05-11 7:02 p.m., Peter Coghlan via cctalk wrote:
It's hard to come up with suitable terms for this sort of stuff that
convey the meaning of what is going on. I struggled with it for a while
and that was what I ended up with.
With the strict meaning of DC and AC being direct current and
On 2022-05-12 4:40 a.m., Christian Corti via cctalk wrote:
On Thu, 12 May 2022, Peter Coghlan wrote:
about it? Maybe it would be more accurate to use terms like steady
voltage
and alternating voltage? Alternating doesn't seem like that good a term
In German it's exactly like you suggest it.
On Wed, 11 May 2022, Paul Koning wrote:
> > I guess especially for standard capacitors factories ordered whatever was
> > readily available whereas with the high-ripple low-impedance/ESR parts the
> > choice was much more limited.
>
> I wonder if nowadays a good replacement for the case where l
On Thu, 12 May 2022, Peter Coghlan via cctalk wrote:
> I replaced the capacitor in question with a blue Nichicon SE of the same
> value scavanged from another H7821 until I order some spares. I now have
> 8.7V available on the 9V supply, a little less than I hoped for but it is
> enough to make t
Toby Thain via cctalk wrote:
On 2022-05-11 7:02 p.m., Peter Coghlan via cctalk wrote:
Given the normal usage that has evolved for the terms DC and AC rather than
their dictionary definitions, I would suggest that the current that gets
passed by a rectifier has both a DC component and an AC comp
Hi All
There was a Nicolet computer purchased recently on ebay:
https://www.ebay.com/bfl/viewbids/363826255294?item=363826255294&rt=nc&_trksid=p2047675.l2565
Looking at the buyers history, it looks like it was purchased by a collector.
Bob Rosenbloom and I are wondering if anyone know who might ha
> On May 12, 2022, at 11:37 AM, Peter Coghlan via cctalk
> wrote:
>
> Toby Thain via cctalk wrote:
>> On 2022-05-11 7:02 p.m., Peter Coghlan via cctalk wrote:
>>> Given the normal usage that has evolved for the terms DC and AC rather than
>>> their dictionary definitions, I would suggest that
> On May 12, 2022, at 1:03 PM, dwight via cctalk wrote:
>
> Hi All
> There was a Nicolet computer purchased recently on ebay:
> https://www.ebay.com/bfl/viewbids/363826255294?item=363826255294&rt=nc&_trksid=p2047675.l2565
> Looking at the buyers history, it looks like it was purchased by a col
On 2022-05-12 11:37 a.m., Peter Coghlan via cctalk wrote:
Toby Thain via cctalk wrote:
On 2022-05-11 7:02 p.m., Peter Coghlan via cctalk wrote:
Given the normal usage that has evolved for the terms DC and AC
rather than
their dictionary definitions, I would suggest that the current that gets
I picked up one of these in a batch of electronics. Is it worth
repairing/investigating?
I don't see much on the web and they seem to go for practically nothing on
epay.
Is there something inherently wrong with them?
Thanks,
Bill S.
--
This email has been checked for viruses by Avast antivirus
On Thu, May 12, 2022 at 02:01:50PM -0400, William Sudbrink via cctalk wrote:
> I picked up one of these in a batch of electronics. Is it worth
> repairing/investigating?
> I don't see much on the web and they seem to go for practically nothing on
> epay.
> Is there something inherently wrong with
> The scope does what it is supposed to, you get a time-domain
> visualization of voltage. Though, they are awkward to use due to the
> lack of rotary encoders. Scaling horizontally or vertically requires
> you to go into a menu, navigate to the right option, do the actual
> scaling and go b
Alexander Huemer wrote:
> The scope does what it is supposed to, you get a
> time-domain visualization of voltage. Though, they
> are awkward to use due to the lack of rotary encoders.
> Scaling horizontally or vertically requires you to go into
> a menu, navigate to the right option, do the ac
Hi all,
you're invited to the Update computer club[0] public lecture series
"Updateringar"[1]!
When: 2022-05-14, 19:00 CEST
Where: https://bbb.cryptoparty.se/b/upd-0mo-m2u-aq8
The Danish Data History Association is on the move …
We, the Danish Data History Association (Dansk Datahistorisk Foren
On 5/12/22 13:01, William Sudbrink via cctalk wrote:
I picked up one of these in a batch of electronics. Is it worth
repairing/investigating?
I don't see much on the web and they seem to go for practically nothing on
epay.
Is there something inherently wrong with them?
I have a 54200A that I g
Hi Dwight,
In 2010 I purchased a Nicolet LAS 12/70 Data and Signal Processor System box
on ebay. I hoped it was a Nicolet computer but then could find nothing
online about it.
It's on the shelf here and I've never looked inside to see what's there.
It's ridiculously heavy.
I don't know if the
Wayne S wrote:
>> On May 12, 2022, at 09:56, Peter Coghlan via cctalk
>> wrote:
>>
>> Toby Thain via cctalk wrote:
On 2022-05-11 7:02 p.m., Peter Coghlan via cctalk wrote:
Given the normal usage that has evolved for the terms DC and AC rather than
their dictionary definitions
> On 05/12/2022 2:14 PM Peter Coghlan via cctalk wrote:
>
>
> Wayne S wrote:
> >> On May 12, 2022, at 09:56, Peter Coghlan via cctalk
> >> wrote:
> >>
> >> Toby Thain via cctalk wrote:
> On 2022-05-11 7:02 p.m., Peter Coghlan via cctalk wrote:
> Given the normal usage that has evo
Hi Paul
It may be a little slow for DSP. Its main thing was that the acquisition
didn't require and processor time. It was designed before uPs. ( not counting
what was used in the F16's ).
It is fun because it has a full front panel to toggle in a bootstrap. Then one
can load with the serial. M
It may have a processor inside. if it is the one I think it is, it uses 2900
ALUs.
If you can send a picture I may be able to tell.
Dwight
From: cctalk on behalf of dancohoe--- via
cctalk
Sent: Thursday, May 12, 2022 1:45 PM
To: 'dwight via cctalk'
Subject: Nic
>>
>> If I am trying to calculate the height a sea harbour wall needs to be, can I
>> not consider the height of the tide and the height of the waves separately
>> and add them together, just to make it easier to work it out even though I
>> know that it would be physically impossible to disti
On Thu, May 12, 2022 at 12:25 PM Alexander Huemer via cctalk <
cctalk@classiccmp.org> wrote:
> On Thu, May 12, 2022 at 02:01:50PM -0400, William Sudbrink via cctalk
> wrote:
> > I picked up one of these in a batch of electronics. Is it worth
> > repairing/investigating?
>
> The scope does what it
On Thu, May 12, 2022 at 5:55 PM Eric Smith via cctalk
wrote:
>
> These appear to be derived from the 1630/1631 logic analyzers, some models
> of which have 'scope capability, which works as you've described. They must
> have decided to offer models with only the scope and without the logic
> analz
Anyone here have experience dumping the contents of an Intel P8742AH
OTP EPROM device?
I have one that I haven't been able to dump with either a BP
Microsystems BP-1610, or a Data-I/O UniSite device programmer. Both
have device entries for that specific device. Both report device
connection errors
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