Date   

Re: Allowing attachments

Dave Daniel
 

I DO NOT WANT TO DEAL WITH A BUNCH OF ATTACHMENTS FOR WHICH I HAVE NO USE AND FOR WHICH I HAVE TO PAY DATA FEES TO MY ISP.

If one wants to provide photos, put them in the photos section of the group. Don’t be stupid and don’t do dumb things.

DaveD

On May 17, 2020, at 10:37, Tom Phillips <tjtomphillips@gmail.com> wrote:

I wholeheartedly agree that allowing attachments would greatly enhance the ability of users to clarify questions and provide responses. The old saying that a picture is worth a thousand words comes to mind. The information flow is much better when a figure or photo is embedded directly in the discussion thread.
Cheers,
Tom



Re: 93 posts in 7 days about ESR meters IS THERE ANYTHING LEFT TO SAY?

Tom Phillips
 

Regarding the concerns expressed about allowing attachments I suggest taking a look at how it is working out for other groups that presently allow attachments. One such group is HP-Agilent-Keysight-equipment@groups.io.

I participate in several other discussion groups and most of them include embedded attachments. It is a very useful feature and a good use of modern capabilities.

Tom


Re: Allowing attachments

Tom Phillips
 

I wholeheartedly agree that allowing attachments would greatly enhance the ability of users to clarify questions and provide responses. The old saying that a picture is worth a thousand words comes to mind. The information flow is much better when a figure or photo is embedded directly in the discussion thread.
Cheers,
Tom


Communication

Reginald Beardsley
 

After an hour of failed searches I posted a *very* specific question pertaining to identifying a *particular* model of ESR tester which I wanted to buy. Shortly after I posted the query, I realized how to revise my query and found the answer. So I made a 2nd post to inform people I had found the answer. That should have been the end of it.

Unfortunately, well meaning people proceeded to answer questions I had *not* asked, in varying degrees of detail and intelligibility telling me about ESR testing without knowing anything about my problem:

Efficiently servicing an instrument for which I do not have service data constructed in such fashion it is very difficult to probe properly.

Much difficulty in communicating on this list would be alleviated by allowing attachments. There is no factual or financial basis for not allowing them and they would greatly simplify communication, particularly of circuit topologies.

Attachments appear on the groups.io web interface as thumbnails or as icons in the case of PDF files. So if you use the web interface, there is no BW issue unless you choose to download the attachments. I've never seen any porn posted to the HPAK list which I have followed as long as TekScopes. Links to things posted on other sites *are* dangerous. The link can say anything, but behave very differently. So not allowing attachments raises the risks rather than lowering them.

Reg


Re: 93 posts in 7 days about ESR meters IS THERE ANYTHING LEFT TO SAY?

Chuck Harris <cfharris@...>
 

Attachments come in two kinds. One where you include a link to
some (likely temporary) place where the attachment is hosted, and
another where the attachment is hosted by the forum, groups.io.

It is hard to prevent a user including a link to somewhere else, so
that isn't what is being discussed.

Groups.io allows members to include embedded attachments in their
post, if the moderator chooses to allow attachments. When this is done,
the attachment is hosted in the file/picture space allocated to the group.

Web users always get the entire embedded attachment in the post as
they read it.

Email users can set a limit on the size of embedded attachments included
in their emails... ranging from 0 to the full size.

If the attachment is larger than the permitted size the email user sets,
the email will contain a link to the attachment in the file/picture
section.

Attachments hosted on the group can very quickly become expensive for the
group. If the users don't moderate the size of their pictures, the group
can make it into the terabyte club in less than a year.

-Chuck Harris

EJP wrote:

Unless attachments also appear in the Web interface, which is all I will ever use, and which they didn't at Yahoo, I am irrevocably opposed. You ask for something, somebody has it, it gets sent as an attachment to everybody except the one who asked for it.

EJP




Re: 93 posts in 7 days about ESR meters IS THERE ANYTHING LEFT TO SAY?

John Griessen
 

On 5/17/20 8:57 AM, Chuck Harris wrote:
I come here to have some fun with some people I like, not to be scolded
by the moderator.
-Chuck Harris
+ 1

--
John Griessen -- building lab gear for biologists
Austin TX blog.kitmatic.com


Re: 93 posts in 7 days about ESR meters IS THERE ANYTHING LEFT TO SAY?

Chuck Harris <cfharris@...>
 

The problem is, every alternative forum is different in how they
handle questions, their attitudes to newbies, and to well, being used.

They have a culture that takes time to acquire, and a knowledge-base
that they expect you to explore before making a post.

Some even require you to make 5 or 10 posts before you can even ask
a question without being moderated. I have no idea how that even works.

Every alternative forum requires membership, an account of some sort,
and may take days of waiting for everything to get set up... all for
a simple question that might result in a paltry 100 posts on tekscopes.

100 posts in a week on tekscopes is simply a sneeze in the breeze.

If one of us drops into some eeflooble blog, doesn't take the time
read all of the cultural FAQ's, learn their culture, spend days
searching their archives for any mention of some be-all of an ESR meter
... a subject that they have covered extensively, but have become very
tired of covering lately, our member will get beat to a bloody pulp by
the regulars.

Why is it so wrong to ask a question, an off topic question, in a forum
where you know the participants, have already contributed extensively,
and are pretty sure you can get a quick answer?

I was so certain that it wasn't wrong, that I helped to found, and
contributed extensively to, tekscopes2. This was way back when Michael
Dunn got on a funk, and decided to ban a whole bunch or our members
because he simply didn't like them.

I abandoned tekscopes for about 10 years as a result of that purge, and
I only came back when I was assured by Dennis that Dunn was well and
thoroughly out of the picture. Apparently not a true assurance.

I like Dennis, but I am seriously considering leaving this group once
again and going back to tekscopes2. A group where I know my
contributions are always appreciated, and my dalliances in off topic
areas won't be the subject of scorn.

A group where I don't feel like I have to curb answering another member's
nonsense aimed at me, in order to keep the group pure and on topic.

I come here to have some fun with some people I like, not to be scolded
by the moderator.

-Chuck Harris



Tom Gardner wrote:

Can I suggest that one way of reducing off-topic threads is to:
  - quickly discourage them
  - suggest an alternative forum for discussion

For the ESR meter (and many others) the EEVBlog forum would be ideal.
  - already discussed many times there; piggy back off other people's experience
  - allows attachments (pdf etc), and images can be inlined
  - you can browse/search without being a member
  - it is free to join and be able to post

The moderation is light-touch and effective, the denizens are friendly, and there is
considerable overlap with this forum, e.g. a thread on 2465b repair with 1600
responses! Some of the posters are decidedly inexpert, but there are some extremely
well informed posters there.

https://www.eevblog.com/forum/



On 17/05/20 06:54, Dennis Tillman W7pF wrote:
Hi Reginald,
Your contribution was appreciated as was everyone else's. So far you are the first
one to suggest he expected something specific in return for it.

I think attachments would be very convenient in some situations and are definitely
worth considering. Michael Dunn and I discussed the pros and cons of enabling
attachments earlier today. Michael raised some serious drawbacks they have. After
thinking about it myself I saw many other potentially dangerous (yes, dangerous!)
drawbacks to allowing attachments. I documented Michael's and my concerns in an
email I sent to the head of Groups.io this afternoon. I asked him to explain how
attachments would work without any of the dangerous drawbacks we identified. Stay
tuned for his answer.

Dennis Tillman W7pF

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Reginald
Beardsley via groups.io
Sent: Saturday, May 16, 2020 4:45 PM
To: TekScopes@groups.io
Subject: Re: [TekScopes] 93 posts in 7 days about ESR meters IS THERE ANYTHING LEFT
TO SAY?

May I be so bold as to suggest that if you enabled attachments we might communicate
more efficiently, thereby reducing the number of posts on a topic?

I think we contributed enough money to be able to afford that.

Reg








Re: CRT for a 576 Curve Tracer

oliver johnson
 

I have a 576 crt that i got in a deal a while ago , never hooked it up so not sure of condition,  if you are intrested let me know.
On Sun, May 17, 2020 at 9:05 AM, Tam Hanna<tamhan@tamoggemon.com> wrote: Hello,
cannot promise anything immediately, but am working on something real cool.

Can you stick to an oscilloscope in xy mode for now?
---
With best regards
Tam HANNA (emailing on a BlackBerry PRIV)

Enjoy electronics? Join 14k other followers by visiting the Crazy Electronics Lab at https://www.instagram.com/tam.hanna/


Re: Allowing attachments - yes please

VK1GVC
 

I'm a new kid on the block in this forum and I have learned a lot in only a few weeks.  I'd like to add my strongly in favour of allowing attachments.  I am member of an amateur radio discussion group in Australia which last year migrated from a private server (without attachments) to a new location on groups.io where attachments are permitted.  Attachments are now used often to illustrate a point under discussion and I am not aware of any problems or abuse.

I understand that some group members may wish to have control over receiving attachments for bandwidth reasons and that would be a good option too.

If the group owners/managers can limit the size of attachments and manage any other risks then I hope they will see fit to turn attachments on here in TekScopes.

Graham
(Down under)

On 17/05/2020 1:29 am, Tom Miller wrote:

On 5/16/2020 11:15 AM, Carsten Bormann wrote:
On 2020-05-16, at 17:06, Reginald Beardsley via groups.io <pulaskite=yahoo.com@groups.io> wrote:
As there was no problem raising money (other than way too much)  to support Tekscopes, could we allow attachments?
+1

The main reason attachments were originally not such a great idea on yahoo was that everybody would have forcibly received all attachments, and that might overtax their connection.

No longer a problem on groups.io:

https://groups.io/g/TekScopes/editsub
(Open Advanced Preferences, set “Max Attachment Size”.)

Time to switch attachments on; it regularly confuses people here that they can’t send attachments.

Grüße, Carsten


Completely agree. Please allow attachments. Those that don't want them can turn them off.
Win-win


--
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus


Re: 2445B Service Manual

Chuck Harris <cfharris@...>
 

The 2445B and 2465B are mostly the same, but there
are some differences.

Because the 2465B is higher performance, and the 2445B is
intentionally limited in performance, the 2465B has several
more adjustments to allow getting every last drop of
goodness out of the common hybrids.

That said, everything that is not the A1 board is exactly
the same, and every hybrid on the A1 board is exactly the
same, or a reduced performance example of exactly the same
part as is in the 2465B.

-Chuck Harris

Arie de Muijnck wrote:

On 2020-05-17 11:31, Arie de Muijnck wrote:


On 2020-05-17 09:51, John Parkins G8KVP wrote:


Hello,

Does anyone have a complete service manual for the 2445B (200Mhz)
scope?

I have a copy dated 7th July 1998 but my copy doesn't have
any circuit
drawings and this is the one one that all the usual suppliers
seem to
have and without downloading them all I can't find out if some
are more
complete than others.

Tektronix support only has the complete
manual for a 2445, not the B
model.

I hope one of these is the proper serial number version:

https://ademu.home.xs4all.nl/Tek2445B/

Arie
Sorry - mixed up my 2445B and 2456B data. No 2445B diagrams,
unfortunately. But I had these in the same directory because they
seem to be the same scope, only with some tricks to limit the
bandwidth. So the 2465B should be mostly the same.
There is some info somewhere describing the difference, and
how to upgrade the 2445B.

Arie




Re: CRT for a 576 Curve Tracer

Tam Hanna
 

Hello,
cannot promise anything immediately, but am working on something real cool.

Can you stick to an oscilloscope in xy mode for now?
---
With best regards
Tam HANNA (emailing on a BlackBerry PRIV)

Enjoy electronics? Join 14k other followers by visiting the Crazy Electronics Lab at https://www.instagram.com/tam.hanna/


Re: 2445B Service Manual

ArtekManuals <manuals@...>
 

John

The link will be up in the next 15 minutes

Dave

On 5/17/2020 7:40 AM, John Parkins G8KVP wrote:
Hello Dave,

Just ordered the 2 volume set, I hope Paypal tell you about it this
time.........

I've looked again at my copy and I have to say there is a distinct
difference between the 9 and the 8 so it looks very much like 1998. in
fact it says 7 JUL 98. Saying that though I can't read the signature.

Sunday, May 17, 2020, 11:09:15 AM, you wrote:

A> Our copy 070-6882-00 dated "Revised DEC 1991", has complete hi
A> resolution schematics

A> Not free but not insulting

A> I would be really surprised that there is a copy anywhere dated JULY
A> 1998 ( maybe 1988 but nor 1998)

A> Dave
A> manuals@artekmanuals.com
A> www.ArtekManuals.com

A> On 5/17/2020 5:31 AM, Arie de Muijnck wrote:
On 2020-05-17 09:51, John Parkins G8KVP wrote:

Hello,

Does anyone have a complete service manual for the 2445B (200Mhz)
scope?

I have a copy dated 7th July 1998 but my copy doesn't have
any circuit
drawings and this is the one one that all the usual suppliers
seem to
have and without downloading them all I can't find out if some
are more
complete than others.

Tektronix support only has the complete
manual for a 2445, not the B
model.
I hope one of these is the proper serial number version:

https://ademu.home.xs4all.nl/Tek2445B/

Arie


A> --
A> Dave
A> Manuals@ArtekManuals.com
A> www.ArtekManuals.com




--
Dave
Manuals@ArtekManuals.com
www.ArtekManuals.com
--
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus


Re: 2445B Service Manual

John Parkins G8KVP
 

Hello Dave,

Just ordered the 2 volume set, I hope Paypal tell you about it this
time.........

I've looked again at my copy and I have to say there is a distinct
difference between the 9 and the 8 so it looks very much like 1998. in
fact it says 7 JUL 98. Saying that though I can't read the signature.

Sunday, May 17, 2020, 11:09:15 AM, you wrote:

A> Our copy 070-6882-00 dated "Revised DEC 1991", has complete hi
A> resolution schematics

A> Not free but not insulting

A> I would be really surprised that there is a copy anywhere dated JULY
A> 1998 ( maybe 1988 but nor 1998)

A> Dave
A> manuals@artekmanuals.com
A> www.ArtekManuals.com

A> On 5/17/2020 5:31 AM, Arie de Muijnck wrote:
On 2020-05-17 09:51, John Parkins G8KVP wrote:

Hello,

Does anyone have a complete service manual for the 2445B (200Mhz)
scope?

I have a copy dated 7th July 1998 but my copy doesn't have
any circuit
drawings and this is the one one that all the usual suppliers
seem to
have and without downloading them all I can't find out if some
are more
complete than others.

Tektronix support only has the complete
manual for a 2445, not the B
model.
I hope one of these is the proper serial number version:

https://ademu.home.xs4all.nl/Tek2445B/

Arie


A> --
A> Dave
A> Manuals@ArtekManuals.com
A> www.ArtekManuals.com





--
Best regards,
John mailto:john@g8kvp.com


Re: 2445B Service Manual

John Parkins G8KVP
 

Hello Arie,

Thanks for the reply though.


Sunday, May 17, 2020, 10:57:14 AM, you wrote:

AdM> On 2020-05-17 11:31, Arie de Muijnck wrote:


On 2020-05-17 09:51, John Parkins G8KVP wrote:


Hello,

Does anyone have a complete service manual for the 2445B (200Mhz)
scope?

I have a copy dated 7th July 1998 but my copy doesn't have
any circuit
drawings and this is the one one that all the usual suppliers
seem to
have and without downloading them all I can't find out if some
are more
complete than others.

Tektronix support only has the complete
manual for a 2445, not the B
model.

I hope one of these is the proper serial number version:

https://ademu.home.xs4all.nl/Tek2445B/

Arie
AdM> Sorry - mixed up my 2445B and 2456B data. No 2445B diagrams,
AdM> unfortunately. But I had these in the same directory because they
AdM> seem to be the same scope, only with some tricks to limit the
AdM> bandwidth. So the 2465B should be mostly the same.
AdM> There is some info somewhere describing the difference, and
AdM> how to upgrade the 2445B.

AdM> Arie

AdM>




--
Best regards,
John mailto:john@g8kvp.com


Re: 2445B Service Manual

ArtekManuals <manuals@...>
 

Our copy 070-6882-00 dated "Revised DEC 1991", has complete hi resolution schematics

Not free but not insulting

I would be really surprised that there is a copy anywhere dated JULY 1998 ( maybe 1988 but nor 1998)

Dave
manuals@artekmanuals.com
www.ArtekManuals.com

On 5/17/2020 5:31 AM, Arie de Muijnck wrote:
On 2020-05-17 09:51, John Parkins G8KVP wrote:

Hello,

Does anyone have a complete service manual for the 2445B (200Mhz)
scope?

I have a copy dated 7th July 1998 but my copy doesn't have
any circuit
drawings and this is the one one that all the usual suppliers
seem to
have and without downloading them all I can't find out if some
are more
complete than others.

Tektronix support only has the complete
manual for a 2445, not the B
model.
I hope one of these is the proper serial number version:

https://ademu.home.xs4all.nl/Tek2445B/

Arie

--
Dave
Manuals@ArtekManuals.com
www.ArtekManuals.com
--
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus


Re: 2445B Service Manual

Arie de Muijnck
 

On 2020-05-17 11:31, Arie de Muijnck wrote:


On 2020-05-17 09:51, John Parkins G8KVP wrote:


Hello,

Does anyone have a complete service manual for the 2445B (200Mhz)
scope?

I have a copy dated 7th July 1998 but my copy doesn't have
any circuit
drawings and this is the one one that all the usual suppliers
seem to
have and without downloading them all I can't find out if some
are more
complete than others.

Tektronix support only has the complete
manual for a 2445, not the B
model.

I hope one of these is the proper serial number version:

https://ademu.home.xs4all.nl/Tek2445B/

Arie
Sorry - mixed up my 2445B and 2456B data. No 2445B diagrams,
unfortunately. But I had these in the same directory because they
seem to be the same scope, only with some tricks to limit the
bandwidth. So the 2465B should be mostly the same.
There is some info somewhere describing the difference, and
how to upgrade the 2445B.

Arie


Re: 93 posts in 7 days about ESR meters IS THERE ANYTHING LEFT TO SAY?

EJP
 

Unless attachments also appear in the Web interface, which is all I will ever use, and which they didn't at Yahoo, I am irrevocably opposed. You ask for something, somebody has it, it gets sent as an attachment to everybody except the one who asked for it.

EJP


CRT for a 576 Curve Tracer

Reed Dickinson
 

Greetings:
I hope everyone on this forum is remaining healthy!
I am seeking a good CRT for a Tektronix 576 curve tracer.  I have some cash but I would be willing to trade one of my completely refurbished Tektronix 485 for this CRT.  Please see my ad on eBay for further information on the 485 refurbishing procedures.  On eBay I am reed-d.
Reed Dickinson1705 Stonehenge DriveTustin, CA  92780
714.838.6241


Re: 2445B Service Manual

Arie de Muijnck
 

On 2020-05-17 09:51, John Parkins G8KVP wrote:


Hello,

Does anyone have a complete service manual for the 2445B (200Mhz)
scope?

I have a copy dated 7th July 1998 but my copy doesn't have
any circuit
drawings and this is the one one that all the usual suppliers
seem to
have and without downloading them all I can't find out if some
are more
complete than others.

Tektronix support only has the complete
manual for a 2445, not the B
model.
I hope one of these is the proper serial number version:

https://ademu.home.xs4all.nl/Tek2445B/

Arie


2445B Service Manual

John Parkins G8KVP
 

Hello,

Does anyone have a complete service manual for the 2445B (200Mhz) scope?

I have a copy dated 7th July 1998 but my copy doesn't have any circuit
drawings and this is the one one that all the usual suppliers seem to
have and without downloading them all I can't find out if some are more
complete than others.

Tektronix support only has the complete manual for a 2445, not the B
model.

Thanks.


--
Best regards,
John mailto:john@g8kvp.com

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