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digests, Re: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
On 08/26/2018 01:50 PM, RFI-EMI-GUY wrote:
Tam; You can trim your delivery to block any attachments and get only aSimply suggesting that someone go to digest mode is a non-starter. Think about how they work...digests are for people who want to read what's going on. Mailing list subscriptions are for *participants*. Tam and Chuck (the people to whom you also made this suggestion) are participants here. Going to digest mode to hide from the annoyance caused by people who want to post web pages to a mailing list and treat them as a live editing medium isn't a reasonable way to address the problem. -Dave -- Dave McGuire, AK4HZ New Kensington, PA |
mailing lists!, was Re: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
On 08/26/2018 01:33 PM, RFI-EMI-GUY wrote:
However the new platform does permit in line attachments and that is aI could not disagree more. This is a MAILING LIST...not a web page authoring system! If you want to put up a web page about something, do so...on a web page hosting platform. Post "editing" just makes it worse. There is a concept of "sending an email" here. Once it's sent, it's sent. It's sitting on the destination server to be read. Edit it to your heart's content, and THEN send it. Once it's sent, it's over and done with. If you forget something, reply to your own post (it's in your email, after all, if things are properly configured) and add the information, along with maybe an apology for having screwed up and forgotten something before you sent it. It's a matter of simple manners, consideration for other subscribers (which is doubly important here because many/most posts are written to ask those very same other subscribers for help!) and treating a mailing list like a mailing list. Apparently there are a lot of delivery options that can be used to trimIt's not just a matter of dialup users. I have more bandwidth than God over here. It's the fact that it's *annoying*. -Dave -- Dave McGuire, AK4HZ New Kensington, PA |
Re: PCMCIA FLASH and HP8920B
Getting back on topic,
The 892x test sets can access 2MB memory on external cards (21 address lines on socket). You can use larger cards as long as you don't put more than 2MB on them. Anything above 2MB will be inaccessible to the test set. Copying one SRAM card to a bigger linear FLASH card works fine. I've used up to 32MB cards with no problem. Robert G8RPI. |
Re: HP 545A or 546A Ground Clip (HP Part No. 00545-60105)
Not sure what happened as my post that was sent in by email apears to be missing the body text. I am replying to myself to send in the missing text. Sorry if I am in some way doing it wrong.
=== Original Message === Hi, I am new to this group here at IO, and was redirected from the former Yahoo HP group where I used to be a member a long time ago. I just recently acquired a nice 5022A TTL/CMOS Troubleshooting Kit which includes one each of the 545A Logic probe, 546A Logic Pulser, and 547A current probe, all in a nice HP pouch, and everything in very good condition given age, and fully operational. Originally this kit also included the 548A logic clip, but this specific bundle I purchased did not, so in the mean time I managed to get one clip separately to make it complete once again. The kit also included all the grabber clips that go on the power cables, plus two spares. But one thing I am still missing is the Ground Clip cable, which can be plugged into either the 545A or 546A in order to achieve a shorter ground path connection. This cable has the typical grabber on one end, and on the other has a kind of sleeve that would slip over a connector on the probe that is basically just a rather small diameter pin recessed inside the body of the probe. I assume that probably the easiest solution would be to just try to build a new cable from scratch, and already having the grabber, that only leaves me to find something suitable to use at the other end. My question would be if someone here has already attempted to build such a cable and if so which type of sleeve connector did they use (or would recommend - maybe a Mouser or Digikey PN would be nice). If nothing else I would have to start looking at those places myself and eventually try to find something that might fit, but I was hoping this has already been done and a working part has been found. Also, if by any chance anyone here in this group might have one of these Ground Clip Cables for sale (HP Part No. 00545-60105), even if in used (but in decent condition), even if it is missing the grabber side. Of course it goes without saying that a NOS cable would even be better. Either way I would definitively be interested. I already checked the e-pay place and set up a search just in case anything comes up, but I doubt someone would sell one of these cables separately. Also did various Google searches which only brought up links to older HP catalogs from the 80s where the part number of the cable is listed as an included accesory to the 545/546 probes. I could also send in a small picture of the ground clip wire if that would be of any help. Hope the combined knowledge of this group can help me. Thanks for any leads (pun intended). Hope everyone is having a nice weekend. Alex |
Re: ADMIN: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
I would reply to you privately, but haven't figured out how to do it.
I won't continue to take the blame on this. groups.io is set by default to deliver e-mails in the most robust way possible. I just happened to be the first guy to use the shiny new "attachments" button because it was suitable for my post. I was not sending pictures of my cats to the group. I like the groups.io. Your "problem"? seems to be a bit odd in that you say: "I have broadband, and I have a quad core 3GHz machine with 8Gb of memory, and your tronch of useless to me pictures bogs my email program down for 40 seconds every time I click on your posting as it translates the UUCODE encoding of your pictures into JPEG files that my email program's MIME software can display on my screen." You have far more bandwidth capability than I do and I am happy with seeing the digests and then using the web interface for more in depth review of the posts. As far as your saying: "2/3 of the US is rural, and doesn't have great internet service, having to suffer with dialup, or DSL service." Nobody suggested using a text only BBS dial up service to replace Yahoo Groups, if they did, the decision was made by the administrator and the choice for groups.io? was a good one. You were instructed how to eliminate attachments from the email delivery. So please stop haranguing me on this issue and threatening to quit the group. Joe |
Re: Free for postage 653A Option H01 Operator manual
Dr. David Kirkby from Kirkby Microwave Ltd
On Sun, 26 Aug 2018 at 18:51, Artekmedia <manuals@...> wrote: I have a 653A operating manual that needs a loving home # 00653-90002 -- Dr David Kirkby Ph.D C.Eng MIET Kirkby Microwave Ltd Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom. Registered in England and Wales as company number 08914892 Tel 01621-680100 / +44 1621-680100 |
Re: 11729C oscillations
Hi Thomas, looks like you've made some good progress. Q6 area is the place to focus on first. You said touching its case made a large increase in amplitude. Is this a metal can type TO-5 or TO-18 etc, or plastic like TO-92? It makes a difference only in estimating the sensitivity. If it's a metal can, then touching it would have made a big difference in AC conditions on the collector, compared to fairly small capacitance if it's plastic.
Since Q6 is a common-base amplifier, it could be very sensitive to feedback in the vicinity. You can suppress its AC gain by disconnecting C10. If the 27 MHz disappears, then the problem is most likely right in this area. Before doing anything else, try putting a low frequency test signal in, and make sure it acts like an amplifier. To restore some of the gain, if necessary, you can reconnect C10 via some small series R, say 10 ohms or so. Hopefully, that won't bring back the 27 MHz, but will get some LF gain for testing. You can look at say a few kHz signal in time domain on a scope, over a wide level range, and see if it works properly. This should show if there are any bias or device failures, LF- and DC-wise. If the overall amplifier works properly with these conditions, then you can't blame much else but local feedback around Q6. One big question is whether this problem arose over time, or is it possible it was always there but not evident in testing or typical use? Is there any wiring or nearby component that could have been moved at some point? Are all the board mounting/grounding screws tight? How about the grounding of the coaxial connectors? If all else looks good, then you'll have to deal with mostly Q6 and C10 to fix the problem. Try to find out the exact specs for C10, especially regarding its ESR. Also measure it if possible. If its ESR started out higher when new, then drifted down over time, it could cause oscillation if the stability was marginal to begin with. The easy solution is to add a little series R, reducing the AC gain. The question though, is how much. It's a trade-off, as usual. You could also try replacing Q6, or putting a bead on its base. If the circuit is marginal in stability, then small changes or characteristic differences can make a big difference. The trick is to get it working sufficiently well, without having to make it perfect. Ed |
Re: ADMIN: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
I have no interest in receiving the digest, as I archive
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the posts on my local system. I have been doing this archiving since 2007. 2/3 of the US is rural, and doesn't have great internet service, having to suffer with dialup, or DSL service. More than a lot of this group is retired, and doesn't get its jollies running high speed interactive video gaming. There are a lot of yesteryear's computers here. When you/the group send 40Mb of pictures to these guys, they are gone for a week. Just you wait, we will hear from them in a couple of days, and what they say will make my indiscriminate use of capital letters seem mild in comparison. I have broadband, and I have a quad core 3GHz machine with 8Gb of memory, and your tronch of useless to me pictures bogs my email program down for 40 seconds every time I click on your posting as it translates the UUCODE encoding of your pictures into JPEG files that my email program's MIME software can display on my screen. This is why those of us that know how our computers, and how the email system works DO NOT WANT INLINE PICTURES. The Web is the place for that sort of activity. It has been optimized for video and audio in ways that the current email system never can be. -Chuck Harris RFI-EMI-GUY wrote: Chuck; |
Re: PCMCIA FLASH and HP8920B
¿ªÔÆÌåÓýHello, sorry to sound rough, but I also need to announce my unhappyness with attachments.
I am on a longterm contract with a German email system provider, and have but 2GB of cap. Your messages single-handedly gobbled up 10% of my inbox capacity.
Tam With best regards Tam Hanna --- Enjoy electronics? Join 8300 other followers by visiting the Crazy Electronics Lab at On 26.08.2018 19:33, RFI-EMI-GUY wrote:
I am sorry for barraging you with data. My mistake. |
Re: PCMCIA FLASH and HP8920B
I am sorry for barraging you with data. My mistake.
However the new platform does permit in line attachments and that is a total improvement over the old system which for whatever reason did not have attachments, just an album area.? Apparently there are a lot of delivery options that can be used to trim content for dial up users. It is a new world. I am still carrying my 2006 vintage Motorola Razr V3M phone (because I LIKE IT) and will do so until it is obsoleted by Verizon next year. My sisters constantly send me messages and such from their iPhones that are incompatible with SMS standards, they could fix it on their end by changing a setting, but I simply ignore them. If it is urgent that can phone me (though their iPhones sound like crap). So I feel you pain. But this is a better platform and attachments are useful for conveying information. I hope it does not get turned off on my account. |
Re: PCMCIA FLASH and HP8920B
Calm down? Me? Not likely, I am calm enough.
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Let's talk about what just happened and why. The why is when this group was recreated, Dave, for whatever reason, left the "maximum attachments size" default setting set to unlimited, and enabled the group for attachments. The what is you just sent a 40+ MB attachment to the group, not once but multiple times as you edited your text. Every edit you submitted resulted in another copy of your 40+MB of pictures being sent to the email users of the group. We won't be hearing from our members that are on dialup for several days, as their internet lines are totally clogged up by your post. Dave turned off allow editing, which is good, and I thank him for that. Now Dave needs to take the next step and either turn off attachments for the group, or flip the maximum attachment size to something like 100K. -Chuck Harris RFI-EMI-GUY wrote: Calm down Chuck and stop YELLING. Change your settings from individual e-mails to daily digest or you will be getting every response to every thread on every topic. I am no longer editing the post. |
Re: ADMIN: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
Chuck;
If you go to preferences you have an option for a variety of delivery options. The default gives you individual messages and you will get a message every time there is activity on any topic including edits. Quite annoying. So I set mine for a rich digest which sends a batch of 12 or so and no duplicates. There are several other options. Its a new fangled thing. Most "BB services" today have provisions for in line attachments. I like it better than Yahoo's photo album that has the pictures of random stuff totally jammed in without any context or links because nobody bothers to add any text comments. Thankfully Yahoo's Yahoos are not going to break it making improvements. |
Re: PCMCIA FLASH and HP8920B
I still have one old WIN98 laptop with a PCMCIA slot in my closet. I recall trying the MCE program and having difficulty using it or figuring it out.? If I can weed out the 12V cards I might try that again.? Will the 5MB HP card (From an HP 200LX Palmtop read properly in the HP8920B or is it too large?
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Re: ADMIN: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
David,
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My "advanced preferences" had the setting for the attachments at unlimited. I, indeed, got 20 Mb of pictures, as I said. On my end, each edited revision came with 9 high resolution pictures, the first of which was 4.2MB, .... through the last, which was 3.9MB: So, I was actually wrong I got 40.2Mb of pictures, at least two times. Followed by a guy on tekscopes who edited his posts 5 times in two different threads, trying to get his punctuation right. My apologies for getting hot under the collar. -Chuck Harris Dr. David Kirkby from Kirkby Microwave Ltd wrote: On Sun, 26 Aug 2018 at 14:42, Chuck Harris <cfharris@...> wrote:Ok, this has to stop.I know there are arguments for and against HTML emails, but what suited |
Re: ADMIN: [HP-Agilent-Keysight-equipment] PCMCIA FLASH and HP8920B
Dr. David Kirkby from Kirkby Microwave Ltd
On Sun, 26 Aug 2018 at 16:07, Chuck Harris <cfharris@...> wrote:
? Which as I wrote before, there is, as I have disabled editing of posts.? I know quite a fwe places, like for example on the Kesight forums, where its possible to edit the posts, but only the first gets emailed. Any subsequent edits do not result in another email to everyone. Very often I will correct a type, or add something to make it clearer. But it is only seen on the web - not on an email. I'm unsure why send out multiple emails, but the problem has been solved by disabling edits.
? Good!?
Dave -- Dr David Kirkby Ph.D C.Eng MIET Kirkby Microwave Ltd Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom. Registered in England and Wales as company number 08914892 Tel 01621-680100 / +44 1621-680100 |
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