Date   

Re: TDS3044B repair

Mark Litwack
 

I have a TDS3054 I bought new 20 years ago and I never noticed how dim the display had become over the years. I was able to replace the CCFL tubes with new ones and it made a huge difference in readability.

You can replace the CCFL tubes as slide-out FRUs, NEC part #65LHS–3L Or, solder in bare CCFLs. I did the latter with tubes from ccflwarehouse.com, part #CC26153. You will need two tubes. The TDS3xxx "B" version uses the same CCFLs according to the Tek service manual.


Wanted: TDS3GV module, TDS3BATC battery. UK/Eur

Jeremy Owen
 

Having finally beaten my TDS3054 into submission (ALL tantalums and electrolytics changed), giving once more a reliable scope, I am after some extras.
I would like the extension module that allows GPIB and VGA, and possibly a battery for it. I've seen a few of each on Ebay but the asking (not selling) prices seem a bit steep.
If anyone has either of these for sale, I would appreciate details.
many thanks
Jeremy


TekWiki Update to 7J20/J20 page

Dave Daniel
 

All,

I have added a few photos of the J20 UV fiber optic sensor and mounting ring adapter to the TekWiki 7J20/J20 page.

DaveD


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This email has been checked for viruses by Avast antivirus software.
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Re: TDS3044B repair

hardyhansendk
 

Hi
I have used - https://www.ccflwarehouse.com/
replacing in e4406A --just shipped the old ones and they made the replacement the right size.
Hardy

-----Oprindelig meddelelse-----
Fra: TekScopes@groups.io [mailto:TekScopes@groups.io] På vegne af Harvey White
Sendt: 6. november 2019 16:59
Til: TekScopes@groups.io
Emne: Re: [TekScopes] TDS3044B repair

This is the first item that came up when searching for CCFL LED replacements

https://www.ccflwarehouse.com/

no idea if they have anything that will fit.

I have made CCFL replacement strips for some odd displays, the older
Optrex DSTN color displays and the FG0800 8 inch VGA display.

Due to the lack of 12 volts in a battery operated project, all of them
are designed to run the LEDS in parallel, at about 15 ma per led, about
9 per 4 inch strip. The strips are designed to be stacked, resulting in
parallel operation.

Whether or not the lamps can be reasonably replaced depends on the
manufacturer. In the Optrex displays, remove a screw, swing a shield
aside, and pull out the tube. In the FG0800, it's more involved (and
takes 4 strips), even more if you wanted the side. The silly tube is a
top, left, and bottom assembly.

The replacement should be made to run off the (suspect 12 volts) supply,
and a simple PWM would easily replace the inverter. I'm sure it varies
wildly.

I know there's a market out there, and the more common the display,
perhaps the easier it is to find the LED replacement, or even the tube
itself (which I'd recommend unless you want to go LED).

I went LED because the power consumption in battery operated equipment
goes down by 50 to 75%, and I'm not happy with 1600 volts running around
an experimental setup.

So give these people a try, they seem to be going laptop, so no idea
what else they do.


You might also want to look here:

https://www.plazmo.com/collections/raw-ccfl-lamps/products/ccfl-backlight-for-tds3000-oscilloscope

10 dollars.

Harvey


On 11/6/2019 10:03 AM, David Kuhn wrote:
" there are commercially
available LED backlight kits to replace the CCFL lamps. "

I would be in your dept if you could point me to an LED replacement for the
fluorescent tubes in the NEC displays like that are used in the TDS3000
series (no bloody A, No bloody B or C). I'll get the actual NEC LCD part
number and reply again later. I wonder if the LED replacement is made to
run off the fluorescent tube inverter supply? I ask that because that
supply has software control line to control the brightness. LET is
probably off or on, unless it is designed to run off the inverter or a
software equivalent inverter is available (retrofitting old equipment not
designing new stuff).

dave

On Tue, Nov 5, 2019 at 2:31 PM Harvey White <madyn@...> wrote:

On 11/5/2019 1:59 PM, David Kuhn wrote:
Sorry for the response delay.

I am in Lewistown, PA. How cheap are the displays and where are you
finding them? I have found the ones, used in the Ultrasonic instruments
I
mentioned, on Alliexpress, and EBAY (haven't ordered any from either
one),
but I can not find the backlight tubes, which I find is usually the
problem
with the displays. The displays may be just slightly different than in
the
TDS3032, but if so, only mechanically. The connectors are the same, and
I
really think the part numbers are the same. It's not a real easy
replacement in those TDS scopes. It looks easy, but it's a pain in the
butt.
Depending on the manufacturer of the display, there are commercially
available LED backlight kits to replace the CCFL lamps.
You may want to buy the TDS3GV on EBAY. I can't use a TDS3032 without
one,
but I have written a lot of service software in VBA and VB6 that
automatically sets up the scopes and gets data from them. I can also
project my TDS3032 to the 32" TV mounted on the wall above it (an older
Sceptre with VGA input) and that's pretty cool.

Again, if the cables are seated well, I doubt the LCD is bad with an
all-white display. My thoughts are a main PCB issue. A TSD3GV could
prove
me wrong.
If you find an all white display, then depending on the type of display
(positive or negative) you'd suspect no signals to it, or improper signals.

The display is likely to take either 5 or 3.3 volts, recent ones that I
have take 3.3. Older STN displays can take 5. The white is the result
of the backlight working, but no active pixels at all (hence no
polarization, etc....).

Like a CRT display, you'll be looking for a horizontal sync (at perhaps
30 Khz), vertical sync (say 60 or so Hz), a DE (likely at horizontal
rate and active high), and a pixel clock at about 25 or so Mhz. You'd
also expect supply voltages to be somewhere on the display. If the
timing is right and the voltages are there, then the display ought to be
showing something. If not, then look at the other pins, they should be
R,G,B digital signals, either in 565 (for a 16 bit panel) or 666 (for an
18 bit panel). If there's any activity on them, then with the right
sync signals, they ought to be giving something on the display.

Harvey



Dave

On Tue, Oct 29, 2019 at 10:55 PM Tom B <tbryan@...> wrote:

Hi Dave,

I tried the "B Trig" and nothing happened. Displays are fairly cheap
but I don't want to buy one unless I have to.

Thank you for the offer. I would be a long while before I make it up
that way.

What town are you in?

Tom

On 10/29/2019 4:52 PM, David Kuhn wrote:
I'm in central, PA, about 3 hours from you if you ever want to come up
and
try it here with one of my VGA/GPIB modules.

Before that. Power it up while holding in the "B TRIG" button (might
be
different on the TDS3014), which on my TDS3032's causes a RESET. I've
had
that fix display issues after replacing the battery NVRAM in in the
scope.
The display in the TDS3032, is the exact same LCD used in the GEIT
Phasor
XS and USN60 instruments. I have worked on many. I have never seen
the
LCD fail on those instrument where it's all white. Typical, if not
broken,
is smeary displays that lines seems to go out of sync. Dim, of course
with
broken backlight tubes.

Dave

On Mon, Oct 28, 2019 at 10:50 PM Tom B <tbryan@...> wrote:

Hi Rich (?),

Thanks. I am located in Maryland near Washington DC.

If anyone in the Washington DC area has a TDS3GV that I could come
over
and quickly test my scope with, I would appreciate it.

Tom Bryan
N3AJA


On 10/28/2019 10:29 AM, Oz-in-DFW wrote:
I'd still remove and reseat both ends.

Where are you in the world? I have a VGA/serial/GPIB card in my 3014
that we might be able to mate with your scope briefly.









--
Denne mail er kontrolleret for vira af AVG.
http://www.avg.com


Re: TDS3044B repair

Harvey White
 

This is the first item that came up when searching for CCFL LED replacements

https://www.ccflwarehouse.com/

no idea if they have anything that will fit.

I have made CCFL replacement strips for some odd displays, the older Optrex DSTN color displays and the FG0800 8 inch VGA display.

Due to the lack of 12 volts in a battery operated project, all of them are designed to run the LEDS in parallel, at about 15 ma per led, about 9 per 4 inch strip.  The strips are designed to be stacked, resulting in parallel operation.

Whether or not the lamps can be reasonably replaced depends on the manufacturer.  In the Optrex displays, remove a screw, swing a shield aside, and pull out the tube.  In the FG0800, it's more involved (and takes 4 strips), even more if you wanted the side. The silly tube is a top, left, and bottom assembly.

The replacement should be made to run off the (suspect 12 volts) supply, and a simple PWM would easily replace the inverter.  I'm sure it varies wildly.

I know there's a market out there, and the more common the display, perhaps the easier it is to find the LED replacement,  or even the tube itself (which I'd recommend unless you want to go LED).

I went LED because the power consumption in battery operated equipment goes down by 50 to 75%, and I'm not happy with 1600 volts running around an experimental setup.

So give these people a try, they seem to be going laptop, so no idea what else they do.


You might also want to look here:

https://www.plazmo.com/collections/raw-ccfl-lamps/products/ccfl-backlight-for-tds3000-oscilloscope

10 dollars.

Harvey

On 11/6/2019 10:03 AM, David Kuhn wrote:
" there are commercially
available LED backlight kits to replace the CCFL lamps. "

I would be in your dept if you could point me to an LED replacement for the
fluorescent tubes in the NEC displays like that are used in the TDS3000
series (no bloody A, No bloody B or C). I'll get the actual NEC LCD part
number and reply again later. I wonder if the LED replacement is made to
run off the fluorescent tube inverter supply? I ask that because that
supply has software control line to control the brightness. LET is
probably off or on, unless it is designed to run off the inverter or a
software equivalent inverter is available (retrofitting old equipment not
designing new stuff).

dave

On Tue, Nov 5, 2019 at 2:31 PM Harvey White <madyn@...> wrote:

On 11/5/2019 1:59 PM, David Kuhn wrote:
Sorry for the response delay.

I am in Lewistown, PA. How cheap are the displays and where are you
finding them? I have found the ones, used in the Ultrasonic instruments
I
mentioned, on Alliexpress, and EBAY (haven't ordered any from either
one),
but I can not find the backlight tubes, which I find is usually the
problem
with the displays. The displays may be just slightly different than in
the
TDS3032, but if so, only mechanically. The connectors are the same, and
I
really think the part numbers are the same. It's not a real easy
replacement in those TDS scopes. It looks easy, but it's a pain in the
butt.
Depending on the manufacturer of the display, there are commercially
available LED backlight kits to replace the CCFL lamps.
You may want to buy the TDS3GV on EBAY. I can't use a TDS3032 without
one,
but I have written a lot of service software in VBA and VB6 that
automatically sets up the scopes and gets data from them. I can also
project my TDS3032 to the 32" TV mounted on the wall above it (an older
Sceptre with VGA input) and that's pretty cool.

Again, if the cables are seated well, I doubt the LCD is bad with an
all-white display. My thoughts are a main PCB issue. A TSD3GV could
prove
me wrong.
If you find an all white display, then depending on the type of display
(positive or negative) you'd suspect no signals to it, or improper signals.

The display is likely to take either 5 or 3.3 volts, recent ones that I
have take 3.3. Older STN displays can take 5. The white is the result
of the backlight working, but no active pixels at all (hence no
polarization, etc....).

Like a CRT display, you'll be looking for a horizontal sync (at perhaps
30 Khz), vertical sync (say 60 or so Hz), a DE (likely at horizontal
rate and active high), and a pixel clock at about 25 or so Mhz. You'd
also expect supply voltages to be somewhere on the display. If the
timing is right and the voltages are there, then the display ought to be
showing something. If not, then look at the other pins, they should be
R,G,B digital signals, either in 565 (for a 16 bit panel) or 666 (for an
18 bit panel). If there's any activity on them, then with the right
sync signals, they ought to be giving something on the display.

Harvey



Dave

On Tue, Oct 29, 2019 at 10:55 PM Tom B <tbryan@...> wrote:

Hi Dave,

I tried the "B Trig" and nothing happened. Displays are fairly cheap
but I don't want to buy one unless I have to.

Thank you for the offer. I would be a long while before I make it up
that way.

What town are you in?

Tom

On 10/29/2019 4:52 PM, David Kuhn wrote:
I'm in central, PA, about 3 hours from you if you ever want to come up
and
try it here with one of my VGA/GPIB modules.

Before that. Power it up while holding in the "B TRIG" button (might
be
different on the TDS3014), which on my TDS3032's causes a RESET. I've
had
that fix display issues after replacing the battery NVRAM in in the
scope.
The display in the TDS3032, is the exact same LCD used in the GEIT
Phasor
XS and USN60 instruments. I have worked on many. I have never seen
the
LCD fail on those instrument where it's all white. Typical, if not
broken,
is smeary displays that lines seems to go out of sync. Dim, of course
with
broken backlight tubes.

Dave

On Mon, Oct 28, 2019 at 10:50 PM Tom B <tbryan@...> wrote:

Hi Rich (?),

Thanks. I am located in Maryland near Washington DC.

If anyone in the Washington DC area has a TDS3GV that I could come
over
and quickly test my scope with, I would appreciate it.

Tom Bryan
N3AJA


On 10/28/2019 10:29 AM, Oz-in-DFW wrote:
I'd still remove and reseat both ends.

Where are you in the world? I have a VGA/serial/GPIB card in my 3014
that we might be able to mate with your scope briefly.






Re: So long...

Jim Ford
 

I'm going to miss your knowledge and insight, Craig.BTW, I didn't think your post was rude.  Perhaps my own "noise floor" is rather high? ;)Jim Ford Sent from my Verizon, Samsung Galaxy smartphone

-------- Original message --------From: Craig Sawyers <c.sawyers@...> Date: 11/5/19 4:51 PM (GMT-08:00) To: TekScopes@groups.io Subject: [TekScopes] So long... Hi all I've been thinking about this for quite a while. But I think after 18 years on Tekscopes it isfinally time to sign off. In part it is because I think I have said all there is that I can possiblysay on Tekscopes, and in part because I just figured out that I have posted over 4,600 times - anexceptionally depressing number, even more so when it represents 14% of all posts to Tekscopes ever.That is one in every seven posts, heaven help us all, that I reckon to be over 800 hours of typing,not counting the thinking time. So to the many people who are on this list who have helped me to figure out problems in my stable ofTektronix gear - my heartfelt thanks. There have been notable assistance above and beyond the call -as an example, while describing a particular fault in my 7854, one of the list members disconnectedthe sampling bridge in his own unit to mimic the fault! And yes, my vertical sampling bridge wasindeed toast. You have all been an inspiration, and I hope that some of you think of me as a friend.I also hope that over the years I have been able to contribute something to others. Anyhow - cheers all Signing off Craig Sawyers


Re: TDS3044B repair

David Kuhn
 

" there are commercially
available LED backlight kits to replace the CCFL lamps. "

I would be in your dept if you could point me to an LED replacement for the
fluorescent tubes in the NEC displays like that are used in the TDS3000
series (no bloody A, No bloody B or C). I'll get the actual NEC LCD part
number and reply again later. I wonder if the LED replacement is made to
run off the fluorescent tube inverter supply? I ask that because that
supply has software control line to control the brightness. LET is
probably off or on, unless it is designed to run off the inverter or a
software equivalent inverter is available (retrofitting old equipment not
designing new stuff).

dave

On Tue, Nov 5, 2019 at 2:31 PM Harvey White <madyn@...> wrote:


On 11/5/2019 1:59 PM, David Kuhn wrote:
Sorry for the response delay.

I am in Lewistown, PA. How cheap are the displays and where are you
finding them? I have found the ones, used in the Ultrasonic instruments
I
mentioned, on Alliexpress, and EBAY (haven't ordered any from either
one),
but I can not find the backlight tubes, which I find is usually the
problem
with the displays. The displays may be just slightly different than in
the
TDS3032, but if so, only mechanically. The connectors are the same, and
I
really think the part numbers are the same. It's not a real easy
replacement in those TDS scopes. It looks easy, but it's a pain in the
butt.
Depending on the manufacturer of the display, there are commercially
available LED backlight kits to replace the CCFL lamps.

You may want to buy the TDS3GV on EBAY. I can't use a TDS3032 without
one,
but I have written a lot of service software in VBA and VB6 that
automatically sets up the scopes and gets data from them. I can also
project my TDS3032 to the 32" TV mounted on the wall above it (an older
Sceptre with VGA input) and that's pretty cool.

Again, if the cables are seated well, I doubt the LCD is bad with an
all-white display. My thoughts are a main PCB issue. A TSD3GV could
prove
me wrong.
If you find an all white display, then depending on the type of display
(positive or negative) you'd suspect no signals to it, or improper signals.

The display is likely to take either 5 or 3.3 volts, recent ones that I
have take 3.3. Older STN displays can take 5. The white is the result
of the backlight working, but no active pixels at all (hence no
polarization, etc....).

Like a CRT display, you'll be looking for a horizontal sync (at perhaps
30 Khz), vertical sync (say 60 or so Hz), a DE (likely at horizontal
rate and active high), and a pixel clock at about 25 or so Mhz. You'd
also expect supply voltages to be somewhere on the display. If the
timing is right and the voltages are there, then the display ought to be
showing something. If not, then look at the other pins, they should be
R,G,B digital signals, either in 565 (for a 16 bit panel) or 666 (for an
18 bit panel). If there's any activity on them, then with the right
sync signals, they ought to be giving something on the display.

Harvey




Dave

On Tue, Oct 29, 2019 at 10:55 PM Tom B <tbryan@...> wrote:

Hi Dave,

I tried the "B Trig" and nothing happened. Displays are fairly cheap
but I don't want to buy one unless I have to.

Thank you for the offer. I would be a long while before I make it up
that way.

What town are you in?

Tom

On 10/29/2019 4:52 PM, David Kuhn wrote:
I'm in central, PA, about 3 hours from you if you ever want to come up
and
try it here with one of my VGA/GPIB modules.

Before that. Power it up while holding in the "B TRIG" button (might
be
different on the TDS3014), which on my TDS3032's causes a RESET. I've
had
that fix display issues after replacing the battery NVRAM in in the
scope.
The display in the TDS3032, is the exact same LCD used in the GEIT
Phasor
XS and USN60 instruments. I have worked on many. I have never seen
the
LCD fail on those instrument where it's all white. Typical, if not
broken,
is smeary displays that lines seems to go out of sync. Dim, of course
with
broken backlight tubes.

Dave

On Mon, Oct 28, 2019 at 10:50 PM Tom B <tbryan@...> wrote:

Hi Rich (?),

Thanks. I am located in Maryland near Washington DC.

If anyone in the Washington DC area has a TDS3GV that I could come
over
and quickly test my scope with, I would appreciate it.

Tom Bryan
N3AJA


On 10/28/2019 10:29 AM, Oz-in-DFW wrote:
I'd still remove and reseat both ends.

Where are you in the world? I have a VGA/serial/GPIB card in my 3014
that we might be able to mate with your scope briefly.








Re: So long...

Albert Otten
 

Thanks for your interesting contributions Craig!
Albert

[Perhaps I can provoke you to write one more message. The message counter shows about 161,400 messages. Then your 4,600 contributions form "only" 2.3%, not 14%. ;=) ]


Re: Topic title debate, was RE: [TekScopes] 7000 still hard to beat

 

FWIW Please don't change the subject of the thread - it remains the same thread.

Instead, please start a completely new thread (i.e. don't use reply).

David

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of G Hopper
Sent: 06 November 2019 09:16
To: TekScopes@groups.io
Subject: Re: Topic title debate, was RE: [TekScopes] 7000 still hard to beat

Tom,

Thank you!

At the risk of aggravating some readers, I'll say that I think that by
sharing these viewpoints and perspectives, some people (hopefully most)
will alter their mindset and approach and not only respect the idea of
staying on topic or taking the time to to edit the subject to indicate a
subtle change in topic, but that others will be a tiny bit more tolerant to
these "frolics and detours". Both approaches, particularly combined, will
achieve a higher level of satisfaction for everyone.

In this day and age, people seem only too willing to find a reason to take
offense when the best path (and mentally healthiest path) is in fact to
find a reason to overlook the offense (though perhaps it is ok to call it
out) and focus on the positives. Another part of that is the mindfulness
that includes a respect for others and even for what those expectations
might be. Dealing with expectations and the connected emotion can be a
tough/frustrating thing. Especially when it surrounds something that
people look to for pleasure.

Heck, instead of working hard to be offended, we need to both work hard to
respect others, find the positives, and forgive the "trespasses". One of my
"happy thoughts" is the scene from "Life of Brian" where they sing "Always
look on the bright side of life"!
https://www.youtube.com/watch?v=SJUhlRoBL8M not a bad philosophy.

Hopefully this all contributes to members wanting to help and share even
more.

Grant


On Tue, Nov 5, 2019 at 8:42 PM fiftythreebuick <ae5i@...> wrote:

Hi Grant-

Thanks much for your thoughtful post!

From reading the messages in this thread, it appears that the source of
disagreement is the fact that different folks experience a very different
level of aggravation from subject drift in a thread. Honestly, what you
referred to about clicking on a thread and finding out that the subject has
drifted significantly from what the header advertises really doesn't bother
me at all. But, I realize that it aggravates the very daylights out of
some folks! :-) And you're right, I do initially read new messages in an
email digest. I get into a browser to reply or to read a whole thread
though.

I do hope the issue does not continue to disturb the nature of the group.
Too much good info and too many good folks here!

Tom


On Tue, Nov 5, 2019 at 01:51 PM, G Hopper wrote:


Tom,
I think one reason you might not appreciate Craig's comment and position
is
twofold. First, is that I would guess that you're reading the posts via
email and so, I agree, it is very easy to delete, but I think we've all
been at the spot where we open an email thinking it is about one thing,
and
it turns out to be about something different. The extreme of that is
spam
advertising. Opening an email thinking it's about 7000 series stuff only
to
find it doesn't have anything to do with the stated subject except in a
vague or oblique way, can be just as frustrating and would also fit the
definition of spam from a content point of view.

Second is that when searching on line and hoping to find an answer,
particularly with detail or troubleshooting, I personally find it more
pleasing to not have a lot of extraneous stuff in a topic/subject thread.
While it seems impossible to achieve these days, it's a laudable, and
apparently achievable goal.

Having said that, When I opened the thread, I didn't expect a 7000 only
post. In fact, the post pretty much fit what I expected, a story. In
fact
the subject like practically advertised that there would be a story. I
did
like the story as well :-) After all, it told of reasons why the 7000
series is useful and part of that is an incredibly necessary explanation
of
how and why the writer came to that conclusion so that as readers we
might
consider whether we agree with his premise that "7000 still hard to
beat".
He seemed to tell a story that made that point well.

So, in my estimation of things, Craig's original premise (that the OP's
"subject" and contents were inconsistent and not appropriately
descriptive)
wasn't reasonable, but his comments about keeping reply posts on topic or
at least highly pertinent to the original topic was (again IMHO) a good
and
important point we should all endeavor to subscribe to.

Grant


On Tue, Nov 5, 2019 at 1:33 PM fiftythreebuick <ae5i@...> wrote:

Hi Craig-

I must be missing something....

If I click on a thread and see that it's veered off topic so that it's
no
longer of interest to me, it only takes oh maybe 3 - 5 seconds to
click on
another thread. That doesn't seem like a big deal to me, but am I
missing
something? I genuinely don't understand the problem!

Have a great evening!

Tom


On Tue, Nov 5, 2019 at 08:02 AM, Craig Sawyers wrote:


Here's the thing Chuck - if the topic was called something like
"2465B
and
7000 series - a comparison"
or something similar that would have been more informative of the
thread
topic.

I have a lot of interest in the 7000 series and none at all in the
2465B
(apart from anything else I
have no room left for any other series!) - hence my chagrin at
opening
posts
and expecting it to be
about the 7000 series and finding it was something else entirely.

Frustratingly this happens all the time, and renders it difficult to
impossible to find relevant posts
in the archives.

There is one list I'm a long standing member of
(https://www.vintage-radio.net/forum/index.php ) where
if a thread strays off topic the mods simply delete the straying
posts,
often
within minutes. And
don't even tell you if and why your post has vanished.

I'm not remotely suggesting that we go down that route - just a
little
more
discipline in (a) using
an informative title for the thread and (b) if the thread changes to
a
different topic to change the
working title to reflect that.

We agree about the politics entirely ;-)

Craig

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf
Of
Chuck
Harris
Sent: 05 November 2019 14:48
To: TekScopes@groups.io
Subject: Re: [TekScopes] 7000 still hard to beat

Craig,

You are out of line here. You are my friend, but you are
wrong.

Peter opened this thread describing how his go to 2465B
fell short of his needs, forcing him to resort to a
combination of 7A22 and 7000 series scope to make his
measurement.

That was an obvious opening for both 2465B fans, and
7000 series fans to discuss the topic.

To add fuel to this fire, I calibrate lots of 2465 family
scopes, for group members, but my go to scope is a 7854
for the same reason that Peter went to his 7103/7A22 to
solve his difficult task.

I keep my 7854 stuffed with an assortment of plugins that
meet my daily needs in a way I just can't with the highly
capable, portable, but ultimately limited 2465B.

Discussions on this group are never fixed and ridged they
wiggle and squirm their way into different discussions...

But excepting for your tirade, this discussion has stuck
to its original course. It started as a discussion of
2465B's vs 7000 series versatility, and so it has remained.

Be glad that we haven't veered into politics.

-Chuck Harris

Craig Sawyers wrote:
Don't agree. When I open a post that is "7000 still hard to
beat" I
expect
to find posts on the
topic
of the 7000 series scopes and plug ins. Not the 2465B.

There is nothing more frustrating than keeping a message title
and
digressing onto another topic.

Craig

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On
Behalf Of
Polaraligned
Sent: 05 November 2019 01:52
To: TekScopes@groups.io
Subject: Re: [TekScopes] 7000 still hard to beat

Well that is a little rude Craig. The OP clearly states that a
2465B is
his main scope and he
only
pulled
out a R7103 and put in a 7A22 for greater sensitivity and
differential
input. My simple question
was
asking if there was an active probe with diff inputs that could
increase
his main scope, the
2465B.











Re: Topic title debate, was RE: [TekScopes] 7000 still hard to beat

G Hopper
 

Tom,

Thank you!

At the risk of aggravating some readers, I'll say that I think that by
sharing these viewpoints and perspectives, some people (hopefully most)
will alter their mindset and approach and not only respect the idea of
staying on topic or taking the time to to edit the subject to indicate a
subtle change in topic, but that others will be a tiny bit more tolerant to
these "frolics and detours". Both approaches, particularly combined, will
achieve a higher level of satisfaction for everyone.

In this day and age, people seem only too willing to find a reason to take
offense when the best path (and mentally healthiest path) is in fact to
find a reason to overlook the offense (though perhaps it is ok to call it
out) and focus on the positives. Another part of that is the mindfulness
that includes a respect for others and even for what those expectations
might be. Dealing with expectations and the connected emotion can be a
tough/frustrating thing. Especially when it surrounds something that
people look to for pleasure.

Heck, instead of working hard to be offended, we need to both work hard to
respect others, find the positives, and forgive the "trespasses". One of my
"happy thoughts" is the scene from "Life of Brian" where they sing "Always
look on the bright side of life"!
https://www.youtube.com/watch?v=SJUhlRoBL8M not a bad philosophy.

Hopefully this all contributes to members wanting to help and share even
more.

Grant

On Tue, Nov 5, 2019 at 8:42 PM fiftythreebuick <ae5i@...> wrote:

Hi Grant-

Thanks much for your thoughtful post!

From reading the messages in this thread, it appears that the source of
disagreement is the fact that different folks experience a very different
level of aggravation from subject drift in a thread. Honestly, what you
referred to about clicking on a thread and finding out that the subject has
drifted significantly from what the header advertises really doesn't bother
me at all. But, I realize that it aggravates the very daylights out of
some folks! :-) And you're right, I do initially read new messages in an
email digest. I get into a browser to reply or to read a whole thread
though.

I do hope the issue does not continue to disturb the nature of the group.
Too much good info and too many good folks here!

Tom


On Tue, Nov 5, 2019 at 01:51 PM, G Hopper wrote:


Tom,
I think one reason you might not appreciate Craig's comment and position
is
twofold. First, is that I would guess that you're reading the posts via
email and so, I agree, it is very easy to delete, but I think we've all
been at the spot where we open an email thinking it is about one thing,
and
it turns out to be about something different. The extreme of that is
spam
advertising. Opening an email thinking it's about 7000 series stuff only
to
find it doesn't have anything to do with the stated subject except in a
vague or oblique way, can be just as frustrating and would also fit the
definition of spam from a content point of view.

Second is that when searching on line and hoping to find an answer,
particularly with detail or troubleshooting, I personally find it more
pleasing to not have a lot of extraneous stuff in a topic/subject thread.
While it seems impossible to achieve these days, it's a laudable, and
apparently achievable goal.

Having said that, When I opened the thread, I didn't expect a 7000 only
post. In fact, the post pretty much fit what I expected, a story. In
fact
the subject like practically advertised that there would be a story. I
did
like the story as well :-) After all, it told of reasons why the 7000
series is useful and part of that is an incredibly necessary explanation
of
how and why the writer came to that conclusion so that as readers we
might
consider whether we agree with his premise that "7000 still hard to
beat".
He seemed to tell a story that made that point well.

So, in my estimation of things, Craig's original premise (that the OP's
"subject" and contents were inconsistent and not appropriately
descriptive)
wasn't reasonable, but his comments about keeping reply posts on topic or
at least highly pertinent to the original topic was (again IMHO) a good
and
important point we should all endeavor to subscribe to.

Grant


On Tue, Nov 5, 2019 at 1:33 PM fiftythreebuick <ae5i@...> wrote:

Hi Craig-

I must be missing something....

If I click on a thread and see that it's veered off topic so that it's
no
longer of interest to me, it only takes oh maybe 3 - 5 seconds to
click on
another thread. That doesn't seem like a big deal to me, but am I
missing
something? I genuinely don't understand the problem!

Have a great evening!

Tom


On Tue, Nov 5, 2019 at 08:02 AM, Craig Sawyers wrote:


Here's the thing Chuck - if the topic was called something like
"2465B
and
7000 series - a comparison"
or something similar that would have been more informative of the
thread
topic.

I have a lot of interest in the 7000 series and none at all in the
2465B
(apart from anything else I
have no room left for any other series!) - hence my chagrin at
opening
posts
and expecting it to be
about the 7000 series and finding it was something else entirely.

Frustratingly this happens all the time, and renders it difficult to
impossible to find relevant posts
in the archives.

There is one list I'm a long standing member of
(https://www.vintage-radio.net/forum/index.php ) where
if a thread strays off topic the mods simply delete the straying
posts,
often
within minutes. And
don't even tell you if and why your post has vanished.

I'm not remotely suggesting that we go down that route - just a
little
more
discipline in (a) using
an informative title for the thread and (b) if the thread changes to
a
different topic to change the
working title to reflect that.

We agree about the politics entirely ;-)

Craig

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf
Of
Chuck
Harris
Sent: 05 November 2019 14:48
To: TekScopes@groups.io
Subject: Re: [TekScopes] 7000 still hard to beat

Craig,

You are out of line here. You are my friend, but you are
wrong.

Peter opened this thread describing how his go to 2465B
fell short of his needs, forcing him to resort to a
combination of 7A22 and 7000 series scope to make his
measurement.

That was an obvious opening for both 2465B fans, and
7000 series fans to discuss the topic.

To add fuel to this fire, I calibrate lots of 2465 family
scopes, for group members, but my go to scope is a 7854
for the same reason that Peter went to his 7103/7A22 to
solve his difficult task.

I keep my 7854 stuffed with an assortment of plugins that
meet my daily needs in a way I just can't with the highly
capable, portable, but ultimately limited 2465B.

Discussions on this group are never fixed and ridged they
wiggle and squirm their way into different discussions...

But excepting for your tirade, this discussion has stuck
to its original course. It started as a discussion of
2465B's vs 7000 series versatility, and so it has remained.

Be glad that we haven't veered into politics.

-Chuck Harris

Craig Sawyers wrote:
Don't agree. When I open a post that is "7000 still hard to
beat" I
expect
to find posts on the
topic
of the 7000 series scopes and plug ins. Not the 2465B.

There is nothing more frustrating than keeping a message title
and
digressing onto another topic.

Craig

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On
Behalf Of
Polaraligned
Sent: 05 November 2019 01:52
To: TekScopes@groups.io
Subject: Re: [TekScopes] 7000 still hard to beat

Well that is a little rude Craig. The OP clearly states that a
2465B is
his main scope and he
only
pulled
out a R7103 and put in a 7A22 for greater sensitivity and
differential
input. My simple question
was
asking if there was an active probe with diff inputs that could
increase
his main scope, the
2465B.











Re: So long...

tek_547
 

Many thanx for all your endless contributions in all those years Graig. And it will others giving a hard time to do the same at that level of always in detail trying to solve the problems.
Have a good time, René


Can anyone in the Seattle area copy a 2764DC EPROM PROBLEM SOLVED

 

Bruce Lane will read the EPROM for me. He is nearby.
Dennis Tillman W7PF

-----Original Message-----
From: Dennis Tillman W7PF
Sent: Tuesday, November 05, 2019 3:09 PM
Subject: [TekScopes] Can anyone in the Seattle area copy a 2764DC EPROM

I need to get a 2764DC EPROM copied to a text file in (preferably) BIN
Format.
It contains the Version 2.0 executable code for the 7000 series 021-0374-00
GPIB Decoder Plugin.
These GPIB Decoder plugins are extremely rare and it would be valuable to
have a copy of this version of the EPROM software for our archives.
They are used to control the 7xxxP programmable plugins in the 7912AD,
7912HB, and 7854.
Pictures of this plugin can be seen on TekWiki at:
http://proxy.w140.com/tekwiki/wiki/021-0374-00

I'm in Bellevue on the Eastside.
If you are nearby contact me OFF LIST at dennis at ridesoft dot com.
Dennis Tillman W7PF



--
Dennis Tillman W7PF
TekScopes Moderator


Re: So long...

Dave Seiter
 

We've all appreciated your input! Cheers and happy trails!
-Dave

On Tuesday, November 5, 2019, 04:51:50 PM PST, Craig Sawyers <c.sawyers@...> wrote:

Hi all



I've been thinking about this for quite a while. But I think after 18 years on Tekscopes it is
finally time to sign off. In part it is because I think I have said all there is that I can possibly
say on Tekscopes, and in part because I just figured out that I have posted over 4,600 times - an
exceptionally depressing number, even more so when it represents 14% of all posts to Tekscopes ever.
That is one in every seven posts, heaven help us all, that I reckon to be over 800 hours of typing,
not counting the thinking time.



So to the many people who are on this list who have helped me to figure out problems in my stable of
Tektronix gear - my heartfelt thanks. There have been notable assistance above and beyond the call -
as an example, while describing a particular fault in my 7854, one of the list members disconnected
the sampling bridge in his own unit to mimic the fault! And yes, my vertical sampling bridge was
indeed toast. You have all been an inspiration, and I hope that some of you think of me as a friend.
I also hope that over the years I have been able to contribute something to others.



Anyhow - cheers all



Signing off



Craig Sawyers


Re: Topic title debate, was RE: [TekScopes] 7000 still hard to beat

fiftythreebuick
 

Hi Grant-

Thanks much for your thoughtful post!

From reading the messages in this thread, it appears that the source of disagreement is the fact that different folks experience a very different level of aggravation from subject drift in a thread. Honestly, what you referred to about clicking on a thread and finding out that the subject has drifted significantly from what the header advertises really doesn't bother me at all. But, I realize that it aggravates the very daylights out of some folks! :-) And you're right, I do initially read new messages in an email digest. I get into a browser to reply or to read a whole thread though.

I do hope the issue does not continue to disturb the nature of the group. Too much good info and too many good folks here!

Tom

On Tue, Nov 5, 2019 at 01:51 PM, G Hopper wrote:


Tom,
I think one reason you might not appreciate Craig's comment and position is
twofold. First, is that I would guess that you're reading the posts via
email and so, I agree, it is very easy to delete, but I think we've all
been at the spot where we open an email thinking it is about one thing, and
it turns out to be about something different. The extreme of that is spam
advertising. Opening an email thinking it's about 7000 series stuff only to
find it doesn't have anything to do with the stated subject except in a
vague or oblique way, can be just as frustrating and would also fit the
definition of spam from a content point of view.

Second is that when searching on line and hoping to find an answer,
particularly with detail or troubleshooting, I personally find it more
pleasing to not have a lot of extraneous stuff in a topic/subject thread.
While it seems impossible to achieve these days, it's a laudable, and
apparently achievable goal.

Having said that, When I opened the thread, I didn't expect a 7000 only
post. In fact, the post pretty much fit what I expected, a story. In fact
the subject like practically advertised that there would be a story. I did
like the story as well :-) After all, it told of reasons why the 7000
series is useful and part of that is an incredibly necessary explanation of
how and why the writer came to that conclusion so that as readers we might
consider whether we agree with his premise that "7000 still hard to beat".
He seemed to tell a story that made that point well.

So, in my estimation of things, Craig's original premise (that the OP's
"subject" and contents were inconsistent and not appropriately descriptive)
wasn't reasonable, but his comments about keeping reply posts on topic or
at least highly pertinent to the original topic was (again IMHO) a good and
important point we should all endeavor to subscribe to.

Grant


On Tue, Nov 5, 2019 at 1:33 PM fiftythreebuick <ae5i@...> wrote:

Hi Craig-

I must be missing something....

If I click on a thread and see that it's veered off topic so that it's no
longer of interest to me, it only takes oh maybe 3 - 5 seconds to click on
another thread. That doesn't seem like a big deal to me, but am I missing
something? I genuinely don't understand the problem!

Have a great evening!

Tom


On Tue, Nov 5, 2019 at 08:02 AM, Craig Sawyers wrote:


Here's the thing Chuck - if the topic was called something like "2465B
and
7000 series - a comparison"
or something similar that would have been more informative of the thread
topic.

I have a lot of interest in the 7000 series and none at all in the 2465B
(apart from anything else I
have no room left for any other series!) - hence my chagrin at opening
posts
and expecting it to be
about the 7000 series and finding it was something else entirely.

Frustratingly this happens all the time, and renders it difficult to
impossible to find relevant posts
in the archives.

There is one list I'm a long standing member of
(https://www.vintage-radio.net/forum/index.php ) where
if a thread strays off topic the mods simply delete the straying posts,
often
within minutes. And
don't even tell you if and why your post has vanished.

I'm not remotely suggesting that we go down that route - just a little
more
discipline in (a) using
an informative title for the thread and (b) if the thread changes to a
different topic to change the
working title to reflect that.

We agree about the politics entirely ;-)

Craig

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of
Chuck
Harris
Sent: 05 November 2019 14:48
To: TekScopes@groups.io
Subject: Re: [TekScopes] 7000 still hard to beat

Craig,

You are out of line here. You are my friend, but you are
wrong.

Peter opened this thread describing how his go to 2465B
fell short of his needs, forcing him to resort to a
combination of 7A22 and 7000 series scope to make his
measurement.

That was an obvious opening for both 2465B fans, and
7000 series fans to discuss the topic.

To add fuel to this fire, I calibrate lots of 2465 family
scopes, for group members, but my go to scope is a 7854
for the same reason that Peter went to his 7103/7A22 to
solve his difficult task.

I keep my 7854 stuffed with an assortment of plugins that
meet my daily needs in a way I just can't with the highly
capable, portable, but ultimately limited 2465B.

Discussions on this group are never fixed and ridged they
wiggle and squirm their way into different discussions...

But excepting for your tirade, this discussion has stuck
to its original course. It started as a discussion of
2465B's vs 7000 series versatility, and so it has remained.

Be glad that we haven't veered into politics.

-Chuck Harris

Craig Sawyers wrote:
Don't agree. When I open a post that is "7000 still hard to beat" I
expect
to find posts on the
topic
of the 7000 series scopes and plug ins. Not the 2465B.

There is nothing more frustrating than keeping a message title and
digressing onto another topic.

Craig

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of
Polaraligned
Sent: 05 November 2019 01:52
To: TekScopes@groups.io
Subject: Re: [TekScopes] 7000 still hard to beat

Well that is a little rude Craig. The OP clearly states that a
2465B is
his main scope and he
only
pulled
out a R7103 and put in a 7A22 for greater sensitivity and
differential
input. My simple question
was
asking if there was an active probe with diff inputs that could
increase
his main scope, the
2465B.









Re: So long...

Dave Daniel
 

Seconded.

DaveD

Sent from a small flat thingy

On Nov 5, 2019, at 21:40, John Griessen <@jgriessen> wrote:

On 11/5/19 6:51 PM, Craig Sawyers wrote:
it is
finally time to sign off.
OK, but come back if you miss the conversation.



Re: So long...

John Griessen
 

On 11/5/19 6:51 PM, Craig Sawyers wrote:
it is
finally time to sign off.
OK, but come back if you miss the conversation.


Re: vintageTEK scanned transformer drawings for 120-0998-01 and up ( 120-197 )

 

Hi Kurt :
Thanks a lot for your information !!!
RegardTony CheungNOV 6 2019

On Wednesday, November 6, 2019, 07:26:44 AM GMT+8, Kurt Rosenfeld <kurt.harlem@...> wrote:

Here is the 120-197 drawing:

http://w140.com/tekwiki/images/c/cd/Tek_120-0197-00.pdf


Re: Can anyone in the Seattle area copy a 2764DC EPROM

J. L. Trantham
 

I likely have a means of reading, archiving and programming a chip.

Can you give me a more complete description of the device? Manufacturer, a
picture of the chip, ect.?

Joe

-----Original Message-----
From: TekScopes@groups.io [mailto:TekScopes@groups.io] On Behalf Of Dennis
Tillman W7PF
Sent: Tuesday, November 05, 2019 3:09 PM
To: TekScopes@groups.io
Subject: [TekScopes] Can anyone in the Seattle area copy a 2764DC EPROM

I need to get a 2764DC EPROM copied to a text file in (preferably) BIN
Format.
It contains the Version 2.0 executable code for the 7000 series 021-0374-00
GPIB Decoder Plugin.
These GPIB Decoder plugins are extremely rare and it would be valuable to
have a copy of this version of the EPROM software for our archives.
They are used to control the 7xxxP programmable plugins in the 7912AD,
7912HB, and 7854.
Pictures of this plugin can be seen on TekWiki at:
http://proxy.w140.com/tekwiki/wiki/021-0374-00

I'm in Bellevue on the Eastside.
If you are nearby contact me OFF LIST at dennis at ridesoft dot com.
Dennis Tillman W7PF



--
Dennis Tillman W7PF
TekScopes Moderator


Re: So long...

Mlynch001
 

Craig,

Hate to see you go, but I also understand your reason for leaving. I have enjoyed reading your comments and learning from you.

Best of luck going forward.
--
Michael Lynch
Dardanelle, AR


Re: So long...

Vince Vielhaber
 

You will be missed.

Vince.

On 11/05/2019 07:51 PM, Craig Sawyers wrote:
Hi all



I've been thinking about this for quite a while. But I think after 18 years on Tekscopes it is
finally time to sign off. In part it is because I think I have said all there is that I can possibly
say on Tekscopes, and in part because I just figured out that I have posted over 4,600 times - an
exceptionally depressing number, even more so when it represents 14% of all posts to Tekscopes ever.
That is one in every seven posts, heaven help us all, that I reckon to be over 800 hours of typing,
not counting the thinking time.



So to the many people who are on this list who have helped me to figure out problems in my stable of
Tektronix gear - my heartfelt thanks. There have been notable assistance above and beyond the call -
as an example, while describing a particular fault in my 7854, one of the list members disconnected
the sampling bridge in his own unit to mimic the fault! And yes, my vertical sampling bridge was
indeed toast. You have all been an inspiration, and I hope that some of you think of me as a friend.
I also hope that over the years I have been able to contribute something to others.



Anyhow - cheers all



Signing off



Craig Sawyers