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Re: In Defense of the 7A19
She should be wearing an anti-static lab coat, which would solve the "cuffs-catching-on-things" problem.
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DaveD On 6/6/2020 2:24 PM, lilacbarn wrote:
Hi Ernesto, thanks for that link to the Tek site on triggering fundamentals for the DPO etc series. --
This email has been checked for viruses by Avast antivirus software. |
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Re: Sweep-switching mod for Type CA and 547 ?
I would also like to see that solution.
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DaveD On 6/6/2020 2:02 PM, um-gs@... wrote:
Hi, --
This email has been checked for viruses by Avast antivirus software. |
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Re: In Defense of the 7A19
Hi Ernesto, thanks for that link to the Tek site on triggering fundamentals for the DPO etc series.
The info in there is very valuable. I notice the photo on thee front is a bad Health and safety example. If she worked for me in my test lab (of years ago) I would have had a word or two about rolling up her cuffs or buttoning them to prevent her accidentally catching her test circuits and probes with them as she adjusted her instruments! Geoff. |
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Re: Tek 4041 GPIB Controller
Tony, Does your 2465 include the GPIB option connector? If not - I don't think you can connect that scope to anything externally - controller or printer. I do see in the 2445/2465 Option 10 GPIB manual - control programs for the Tektronix 4051/4052/4054 and Tektronix 4041 to change settings on the 2465 with Option 10. But I don't think the 2465 can digitally capture the analog inputs. It looks like the GPIB can only be used for all the front panel settings. I think you need a DSO in order to capture the inputs in digital form - and those scopes may have printer output capability. The 4041 thermal printer cannot be used with any other equipment - there is a board inside the 4041 that drives the printer for 20 column text output - not graphics. The 4041 GPIB Programming Guide has an example of printing the output on a 4025 terminal, or a 4662 plotter, but not on the internal printer. |
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Re: Watch for new members who are here under false pretenses
Thank you for all you do!
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Most of us do not know exactly, since only few of us know how much work you do every day! Have a great weekend and stay safe all of you out there. Tony On Sat, Jun 6, 2020 at 12:34 PM bill K7WXW <K7WXW@...> wrote:
This is why all of the groups I manage are set up so that the first two or |
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Re: Never to be used GPIB option and power consumption and heat.
Thank you very much for explaining it to me!
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Somewhere I heard that it was possible, but now it is clear to me, thanks to you Siggi. Have a great weekend! Stay safe all of you. On Sat, Jun 6, 2020 at 12:35 PM Siggi <siggi@...> wrote:
Hey Tony, |
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Re: Never to be used GPIB option and power consumption and heat.
Hey Tony,
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The 2465 is an analog scope, and the GPIB is only good for changing or reading back the settings on the scope. The scope itself has no idea what's displayed on the CRT, so you wouldn't be able to e.g. read back the displayed waveform to a computer. For that you'd need a digitizing scope of some description. Siggi On Sat, Jun 6, 2020 at 12:39 PM Tony Fleming <czecht@...> wrote:
I have this option on my 2465 - 300 MHZ version and I purchased the cable. |
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Re: Watch for new members who are here under false pretenses
This is why all of the groups I manage are set up so that the first two or three new member messages are moderated. On most of them, I also send a message to anyone applying to join, asking them about their interest in the group. People looking for easy ways to post spam almost always move on. For me, the additional work is worth the result: spam free lists.
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Re: Watch for new members who are here under false pretenses
Hi Roy,
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Did you forget to include what you wanted me to know? Dennis -----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Roy Thistle Sent: Saturday, June 06, 2020 9:58 AM To: [email protected] Subject: Re: [TekScopes] Watch for new members who are here under false pretenses On Sat, Jun 6, 2020 at 09:56 AM, Dennis Tillman W7pF wrote:
-- Dennis Tillman W7pF TekScopes Moderator |
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Re: Tek 4041 GPIB Controller
Thank you for your reply.
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Is there an external printer I can connect to my 2465? Thanks. Tony On Sat, Jun 6, 2020 at 12:10 PM Monty McGraw <mmcgraw74@...> wrote:
I decided to take a look at why my 4041 thermal printer was printing |
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Re: In Defense of the 7A19
Hi Ernesto,
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Thanks for that link to the Triggering Fundamentals Application Note on the Tektronix web site. I have one disagreement with this AppNote after glancing through it. This is the most advanced article on triggering I have ever seen. There is nothing fundamental about the triggering capability of the scopes in this AppNote. I think it will take years to fully understand how all of these trigger conditions interact before you can take advantage of all of this new capability. A better name for the App Note would be Advanced Triggering not Fundamental Triggering. Dennis Tillman W7pF -----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Ernesto Sent: Saturday, June 06, 2020 9:24 AM To: [email protected] Subject: Re: [TekScopes] In Defense of the 7A19 On Mon, Jun 1, 2020 at 08:21 AM, Dave Daniel wrote: Hi Dave, I found this book you recommended under the "Concept Series" in tekwiki. It is very helpful and easy to read. Another article, a little more advanced, is on www.tek.com. It goes beyond all one may want to know on the subject, but I will find time to read it. Ernesto -- Dennis Tillman W7pF TekScopes Moderator |
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Re: Never to be used GPIB option and power consumption and heat.
Percentage-wise, the GPIB power is probably no big deal. I don't know how the GPIB option is connected internally, but if it's say, via a ribbon cable, you may be able to just unplug it and secure it so it can't short to anything. Then make sure the system starts up and runs properly without it - it may cause error reports on POST, for instance, if it expects to find it.
If the GPIB module is hard-plugged directly into a port, and requires physical removal to disconnect, then you'll have to worry about plugging the empty cabinet hole, and the possibility of eventually losing the GPIB parts - this tends to happen when things are separated. The simplest thing is to just leave it be. Ed |
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Re: Watch for new members who are here under false pretenses
THANK YOU FOR ALL YOU DO!!!
On Sat, Jun 6, 2020 at 11:56 AM Dennis Tillman W7pF <dennis@...> wrote: A few days ago I approved someone who wanted to join TekScopes. |
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Re: Tek 4041 GPIB Controller
I decided to take a look at why my 4041 thermal printer was printing unrecognizable characters. I was able to fix it by removing the timing disk cover and cleaning the contacts and timing disk with 90% isopropyl alcohol. I believe the 40 year old grease on the timing disk had hardened and was keeping the contacts from making proper contact with the timing disk. You can see description and photos of the repair on my post on vcfed: |
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Watch for new members who are here under false pretenses
A few days ago I approved someone who wanted to join TekScopes.
Fortunately one of our members alerted me that he recognized the email ID. The person (or group) using that email ID was joining other groups to post ads for face masks. Groups are easy prey for scams like this so this is going to happen again. Now that I know about this I will be watching for others with the same intent. You can help too. Let me know if anyone in other groups has attempted to do this. Send me their name or email address via the Group Owner link at the bottom of this post. Dennis Tillman W7pF |
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Re: Never to be used GPIB option and power consumption and heat.
I have this option on my 2465 - 300 MHZ version and I purchased the cable.
I have plans to get it to work with a computer and I'm looking for someone who has done this, so I don't need to reinvent something that is done already! ha ha ha Can someone point me to the resources I can use? Is there some modern PC connection available? Why would you like to remove it? It isn't hurting anything and the power supply creates almost the same heat as if you didn't have it, so you wouldn't save any $$, I think. Thank you all! Stay safe and have a great weekend! Tony On Sat, Jun 6, 2020 at 11:24 AM Lawrance A. Schneider < llaassllaaass@...> wrote: My 2465BDM has a GPIB option. I'll never use it; all my other instruments |
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Re: DM502 with problems
Colin,
Glad to hear it is working OK, if there is no need to clean the cam switches then don't rush into it, there is advice around that says energetic cleaning with the wrong type of paper can remove the gold plating. There are 40 odd segments to the cam switch so it could be a tedious job anyway! Regards, Roger |
bill K7WXW
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