Date   

Re: PG-506 Calibrator and Power Module Compatibility

 

I agree that is probably what happened; the original design included
countersunk holes intending to be used with flat head screws but they
interfered with the alignment pins.

I wonder how mine ended up with flat head screws then and Tektronix
ones at that. There was no sign of previous repairs but it hardly
seems likely that someone was using it and removing the index pins
from the plug-ins.

On Sun, 24 Dec 2017 00:31:52 -0800, you wrote:

Hi David,
Yes, mine is the same but I would say it is clear from the unmarked paint in the countersinks that no flat-head screw (countersunk screw in the UK!) was ever fitted.

There is a curiously shaped - dished, almost a low 'top-hat' section - internally spiked lock washer then a dome nut on mine. The lock washer effectively bridges the countersunk hole and the dome washer is just for elegance I would think.

So I would contend that the holes were countersunk and only later did Tek realize there was an issue and found a solution that did not involve replacing the entire chassis? If I've understood this site, this should be a link a couple of pix: https://groups.io/g/TekScopes/album?id=13647


Re: First draft of the Tek knob visual index project

Chuck Harris
 

I have to wonder if the spurious 404 message problem
is due to the way the various website hosts handle low
volume websites. They all use virtualized servers, so
that each website appears as though it has a server all
to itself, but in reality, it is a virtual machine
running on a much more capable server, along with
thousands of other low volume websites.

But...

Most of these homemade websites get zero traffic the
majority of the time, so the virtualized website gets
parked off in cold storage on some disk until it is needed.

The first access after the website has been parked on disk
can take a very long time... 30 seconds to a minute before
any data makes it down the pipe. Perhaps somewhere along
the way some resource has decided that the site has taken
so long to respond that it must be missing, and takes it
upon itself to return a 404 to the request?

For a while after that initial request, the website will
be actually active, and subsequent requests will get quick
access... until the server decides the website is inactive
once again, and parks it in cold storage.

-Chuck Harris

Dale H. Cook wrote:

At 07:35 PM 12/31/2017, Dano wrote:

Link is no good, glorified 404 error.
I have noted, on some sites including my own, that one or two visitors get a 404 or other error where the vast majority of visitors are fine. My most recent case was a 403 error where the error was apparently occurring somewhere between the visitor and my site, as I use custom error screens and the visitor was seeing a plain text 403 message with wording entirely different from my 403 screen.

Dale H. Cook, GR / HP Collector, Roanoke/Lynchburg, VA
http://plymouthcolony.net/starcity/radios/index.html


Re: Sony/Tektronix 336 scope

kc0wox Leeper
 

I found a manual. Thanks anyway.
Leonard


Re: First draft of the Tek knob visual index project

Dale H. Cook
 

At 07:35 PM 12/31/2017, Dano wrote:

Link is no good, glorified 404 error.
I have noted, on some sites including my own, that one or two visitors get a 404 or other error where the vast majority of visitors are fine. My most recent case was a 403 error where the error was apparently occurring somewhere between the visitor and my site, as I use custom error screens and the visitor was seeing a plain text 403 message with wording entirely different from my 403 screen.

Dale H. Cook, GR / HP Collector, Roanoke/Lynchburg, VA
http://plymouthcolony.net/starcity/radios/index.html


Re: First draft of the Tek knob visual index project

 

Actually yes it is - groups.io do listen to feedback!

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Dano
Sent: 01 January 2018 03:44
To: TekScopes@groups.io
Subject: Re: [TekScopes] First draft of the Tek knob visual index project

Yep, can confirm, same issue with Safari on my Mac. (prior tests were all PC w/FF)

So, seems to pretty much be down to Groups.io. Oh well, not something we're gonna fix.

Again, sorry for the wasted bandwidth and cluttering of this thread. In the future, I'll start a new one for issues.

Cheers!

-Dano


Re: Sony/Tektronix 336 scope

 

Leonard:

I have excerpts from the service manual and some of the schematics that I have gleaned from the internet. I realize your request is from 10 years ago, but... I just joined this group and just saw your post. If you still need them, I would be glad to email them to you.

Gene
@MarvinMartian


Re: SONY / Tektronix 336 Digital Storage Oscilloscope: Service Manual

 

Martin:

I have excerpts from the service manual and some of the schematics that I have gleaned from the internet. I realize your request is from 3 years ago, but... I just joined this group and just saw your post. If you still need them, I would be glad to email them to you.

Gene
@MarvinMartian


Re: First draft of the Tek knob visual index project

Chuck Harris
 

I had a full set of links in the link I received.

Here it is:


<http://home.earthlink.net/~mike.terrell/Ephar.html>

With both links.

I pulled the copy out of the source text of the email, which
is what was given to the email program.

-Chuck Harris

Dano wrote:

Maybe it's my browser, but I think it's truly a bad link(s), and I suspect other browsers may be "fixing" it on the fly.

If you copy or hover over your links, they all have ">" at the end, but not at the beginning. Unequal brackets, is invalid. Hence, why I suspect some browsers may be fixing it automagically.

No big deal, long as its working!

Cheers,

-Dano


Re: First draft of the Tek knob visual index project

Michael A. Terrell
 

I use Mailwasher, and Firefox 57 too preview email. I've used this email address for almost 15 years, so it has landed on a lot of spam lists. I blacklist, then bounce the spam and any website that doesn't honor an unsubscribe requests. When the mailbox is about 95% full, I download it onto a compute running Seamonkey to archive what I want to keep. That way, I only have to fire up the other system every few months. The oldest messages are from early September, and I am at 50% of the 300MB limit.

Most of the spam messages are from 316KB to almost 2MB. That takes a lot of time to compress on Seamonkey, and increases the chances of causing an error. I have folders on the Earthlink folder for Ebay, HP, Tektronix, and Read Messages to presort them. I download in blocks of 200 messages at a time, when I empty the server. Some mornings I have over 50 pieces of blacklisted spam, a couple new sources and a dozen valid emails. It will take some time, but I will have to change close to 200 logins to a new web mail address. I am looking at paying for a domain name to get my own email server. Then I will give every login its own address. If I start getting spam from a new email address, I'll see if I really need to deal with whoever it was assigned to.

-----Original Message-----
From: Richard Knoppow <dickburk@...>
Sent: Jan 1, 2018 12:39 AM
To: TekScopes@groups.io
Subject: Re: [TekScopes] First draft of the Tek knob visual index project

    I think there are some people who do not have a mail server that
Thunderbird or other mail clients can connect to. I agree its much
better to use a mail client for mailing lists and I happen to use
Thunderbird also.  I have a friend who is not very computer literate.
She uses computers at the library or university to access the web and
has a Yahoo mail account. I suppose there are members of this list in
the same boat. However I don't recommend it.
    Thunderbird is free and works pretty well but you need a mail
server. All the list systems will forward directly to an e-mail address,
some don't even have web sites. All decent mail clients have filters
which will direct incoming mail to folders. I have about twenty on this
machine. At least in T'bird they are easy to create.

On 12/31/2017 9:03 PM, Merchison Burke via Groups.Io wrote:
I don't mean to brag but for the benefit of those who have trouble
reading (or replying to) posts from "yahoogroups.com" and "groups.io",
I use Thunderbird (52.5.2) (32 bit) under Win 7 Pro (32 bit) and I
have set up "yahoogroups.com" and "groups.io" to send messages to my
e-mail client as they occur. I never use a browser to read any group
posts.

I have no problem linking from Thunderbird to Firefox (57.0.3) (32
bit) so that I can view the URLs, except on the rear occasion
Thunderbird won't link to Firefox. I then reboot my computer and the
links work.

I find that reading (or replying to) group posts in Thunderbird is far
easier than logging-in with a browser to read or reply to any posts.

On 2017-Dec-31 10:44 PM, Dano wrote:
Yep, can confirm, same issue with Safari on my Mac.  (prior tests
were all PC w/FF)

So, seems to pretty much be down to Groups.io.  Oh well, not
something we're gonna fix.

Again, sorry for the wasted bandwidth and cluttering of this thread. 
In the future, I'll start a new one for issues.

Cheers!

-Dano
--
Richard Knoppow
dickburk@...
WB6KBL




Michael A. Terrell


Re: First draft of the Tek knob visual index project

Richard Knoppow
 

I think there are some people who do not have a mail server that Thunderbird or other mail clients can connect to. I agree its much better to use a mail client for mailing lists and I happen to use Thunderbird also.  I have a friend who is not very computer literate. She uses computers at the library or university to access the web and has a Yahoo mail account. I suppose there are members of this list in the same boat. However I don't recommend it.
    Thunderbird is free and works pretty well but you need a mail server. All the list systems will forward directly to an e-mail address, some don't even have web sites. All decent mail clients have filters which will direct incoming mail to folders. I have about twenty on this machine. At least in T'bird they are easy to create.

On 12/31/2017 9:03 PM, Merchison Burke via Groups.Io wrote:
I don't mean to brag but for the benefit of those who have trouble reading (or replying to) posts from "yahoogroups.com" and "groups.io", I use Thunderbird (52.5.2) (32 bit) under Win 7 Pro (32 bit) and I have set up "yahoogroups.com" and "groups.io" to send messages to my e-mail client as they occur. I never use a browser to read any group posts.

I have no problem linking from Thunderbird to Firefox (57.0.3) (32 bit) so that I can view the URLs, except on the rear occasion Thunderbird won't link to Firefox. I then reboot my computer and the links work.

I find that reading (or replying to) group posts in Thunderbird is far easier than logging-in with a browser to read or reply to any posts.

On 2017-Dec-31 10:44 PM, Dano wrote:
Yep, can confirm, same issue with Safari on my Mac.  (prior tests were all PC w/FF)

So, seems to pretty much be down to Groups.io.  Oh well, not something we're gonna fix.

Again, sorry for the wasted bandwidth and cluttering of this thread.  In the future, I'll start a new one for issues.

Cheers!

-Dano
--
Richard Knoppow
dickburk@...
WB6KBL


Re: First draft of the Tek knob visual index project

Merchison Burke
 

I don't mean to brag but for the benefit of those who have trouble reading (or replying to) posts from "yahoogroups.com" and "groups.io", I use Thunderbird (52.5.2) (32 bit) under Win 7 Pro (32 bit) and I have set up "yahoogroups.com" and "groups.io" to send messages to my e-mail client as they occur. I never use a browser to read any group posts.

I have no problem linking from Thunderbird to Firefox (57.0.3) (32 bit) so that I can view the URLs, except on the rear occasion Thunderbird won't link to Firefox. I then reboot my computer and the links work.

I find that reading (or replying to) group posts in Thunderbird is far easier than logging-in with a browser to read or reply to any posts.

On 2017-Dec-31 10:44 PM, Dano wrote:
Yep, can confirm, same issue with Safari on my Mac. (prior tests were all PC w/FF)

So, seems to pretty much be down to Groups.io. Oh well, not something we're gonna fix.

Again, sorry for the wasted bandwidth and cluttering of this thread. In the future, I'll start a new one for issues.

Cheers!

-Dano



---
This email has been checked for viruses by AVG.
http://www.avg.com


Re: TDS-520

jafinch78 .
 

I appreciate you dealing with the PITA issue. Thanks for your time. No hurry on my end as I am taking a break for the holidays to do more not as technical projects, plus I did find the manual though there is only volume 2 (070-8313-00). Any ideas on volume 1? At least volume 2 has A10 through A21 modules detailed. Man, schematics are a PITA on a laptop.

What is a strapping resistor... like a resistor placed to make a trace bridge basically so different models can use different values or "strap" directly?

Seems I read somewhere that in the firmware the scopes can determine what hardware model boot processes to load based on resistor configurations like you note.

Is that correct? I guess that would be the EPROM instructing the Firmware chips. Though aren't the Firmware chips on the firmware board for the TDS-520?

I am guessing later models use the NVRAM since looks like later model boards have two Dallas/Maxim NVRAM chips. Is that correct?

Seems I read somewhere in later models... that was changed so there are no firmware modules.

Thanks and I appreciate you taking the time to look into.

Happy Holidays!


Re: First draft of the Tek knob visual index project

Dano
 

Yep, can confirm, same issue with Safari on my Mac. (prior tests were all PC w/FF)

So, seems to pretty much be down to Groups.io. Oh well, not something we're gonna fix.

Again, sorry for the wasted bandwidth and cluttering of this thread. In the future, I'll start a new one for issues.

Cheers!

-Dano


Re: First draft of the Tek knob visual index project

Michael A. Terrell
 

Groups.IO displays both brackets. It ignores the first bracket when you try to use the URL, so it's a problem with Groups.IO.

-----Original Message-----
From: Dano <nojunkmail@...>
Sent: Dec 31, 2017 9:46 PM
To: TekScopes@groups.io
Subject: Re: [TekScopes] First draft of the Tek knob visual index project

Are you willing to try an replicate my problem? If so...

Login to groups.io via firefox (not your email in firefox)
View this message thread
Hover over your prior URL's
Look in lower left corner of FF and see what the "real" hyperlink is now.

Does is have paired brackets for you?




Michael A. Terrell


Re: First draft of the Tek knob visual index project

Michael A. Terrell
 

There is always Firefox ESR but that has its own set of problems, like losing your bookmarks and browser history.

-----Original Message-----
From: Artekmedia <manuals@...>
Sent: Dec 31, 2017 9:44 PM
To: TekScopes@groups.io
Subject: Re: [TekScopes] First draft of the Tek knob visual index project

Dano

If your running the new Firefox version 57 ...many things are broken
...many plug-ins just simply disappeared without warning.. The whole
upgrade process felt eerily like the WIN-10 "free upgrade" of 2015.
Dealing with the FF help desk feels very much like dealing with
Microsquish these days. "We are sorry we dont support this and we dont
support that anymore" ...the bookmark files folders are now Gray ..you
want yellow folders? ....Helen Hunt has them ..so go to hell and hunt.
After two weeks of frustration I switched to Chrome as my default browser.

It was supposed to be faster and it is,  trouble is at 5 seconds a click
savings it will take me years to recover the 96 hours of non recursing
effort I put into trying to get things I need to work right again.

I dont have a dog in this fight, too many variables ..but the link as
posted works here in Chrome not in FF57, It will work in FF-57 if you
remove both the <>. I couldn't get the link to work in IE with or
without brackets?

Dave
manuals@...



On 12/31/2017 9:22 PM, Dano wrote:
Totally understand that, but without equal brackets, it doesn't comply with the standard (been in IT for 25 years). Something is getting automagically fixed somewhere, that or automagically broken. I think it's the first, but I don't (won't) use other browsers, so I don't know how they are behaving (or not).

I'm using Firefox, so it's not an uncommon browser, maybe it's a bug.

Seriously, just try hovering over your links, they show unequal brackets. Either both brackets need to be there, or neither.

Not trying to be a pain in the rear, but someone else IS going to have the same problem and not know why. So, I'm trying to help get future links posted, properly. I don't care, I know how to cut and paste to fix it, others might not.

Cheers!

-Dano



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





Michael A. Terrell


Re: First draft of the Tek knob visual index project

Dano
 

Yep, know all about that too, I'm preparing to downgrade because every plugin is disabled, and I at least need Session Manager to work! I won't do Chrome or IE, but open to other non-tracking browsers.

-Dano


Re: First draft of the Tek knob visual index project

Dano
 

Are you willing to try an replicate my problem? If so...

Login to groups.io via firefox (not your email in firefox)
View this message thread
Hover over your prior URL's
Look in lower left corner of FF and see what the "real" hyperlink is now.

Does is have paired brackets for you?


Re: First draft of the Tek knob visual index project

ArtekManuals
 

Dano

If your running the new Firefox version 57 ...many things are broken ...many plug-ins just simply disappeared without warning.. The whole upgrade process felt eerily like the WIN-10 "free upgrade" of 2015. Dealing with the FF help desk feels very much like dealing with Microsquish these days. "We are sorry we dont support this and we dont support that anymore" ...the bookmark files folders are now Gray ..you want yellow folders? ....Helen Hunt has them ..so go to hell and hunt. After two weeks of frustration I switched to Chrome as my default browser.

It was supposed to be faster and it is,  trouble is at 5 seconds a click savings it will take me years to recover the 96 hours of non recursing effort I put into trying to get things I need to work right again.

I dont have a dog in this fight, too many variables ..but the link as posted works here in Chrome not in FF57, It will work in FF-57 if you remove both the <>. I couldn't get the link to work in IE with or without brackets?

Dave
manuals@...

On 12/31/2017 9:22 PM, Dano wrote:
Totally understand that, but without equal brackets, it doesn't comply with the standard (been in IT for 25 years). Something is getting automagically fixed somewhere, that or automagically broken. I think it's the first, but I don't (won't) use other browsers, so I don't know how they are behaving (or not).

I'm using Firefox, so it's not an uncommon browser, maybe it's a bug.

Seriously, just try hovering over your links, they show unequal brackets. Either both brackets need to be there, or neither.

Not trying to be a pain in the rear, but someone else IS going to have the same problem and not know why. So, I'm trying to help get future links posted, properly. I don't care, I know how to cut and paste to fix it, others might not.

Cheers!

-Dano


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


Re: First draft of the Tek knob visual index project

Michael A. Terrell
 

No problem. I've worked with computers since IT meant, 'My terminal isn't working, so fix IT!' (I started in 1982) ;-)

-----Original Message-----
From: Dano <nojunkmail@...>
Sent: Dec 31, 2017 9:30 PM
To: TekScopes@groups.io
Subject: Re: [TekScopes] First draft of the Tek knob visual index project

Ok, just thought of another angle on this.

I use firefox to login to groups.io and respond to messages, not an email client.

So, I just checked my email client, and they show up correctly with paired brackets. If I login via groups.io, they DO NOT!

There's our automagic break routine --> groups.io UI

Sorry for muddling it up. But, now I know who the culprit is.

Cheers!

-Dano



Michael A. Terrell


Re: First draft of the Tek knob visual index project

Michael A. Terrell
 

I use Firefox as well. It's email clients that usually cause the problems. I just highlight the URL, minus any brackets and right click 'Open in new tab'.

-----Original Message-----
From: Dano <nojunkmail@...>
Sent: Dec 31, 2017 9:22 PM
To: TekScopes@groups.io
Subject: Re: [TekScopes] First draft of the Tek knob visual index project

Totally understand that, but without equal brackets, it doesn't comply with the standard (been in IT for 25 years). Something is getting automagically fixed somewhere, that or automagically broken. I think it's the first, but I don't (won't) use other browsers, so I don't know how they are behaving (or not).

I'm using Firefox, so it's not an uncommon browser, maybe it's a bug.

Seriously, just try hovering over your links, they show unequal brackets. Either both brackets need to be there, or neither.

Not trying to be a pain in the rear, but someone else IS going to have the same problem and not know why. So, I'm trying to help get future links posted, properly. I don't care, I know how to cut and paste to fix it, others might not.

Cheers!

-Dano



Michael A. Terrell