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Re: Google groups
Helmut, As I remember the plans, it was to be held in reserve and inactive, until needed. The date of Apr 16 at 11:01 AM is near the end of a long discussion on Tekscopes. ? Leon Robinson ?? K5JLR Political Correctness is a Political Disease. From: "helmutsennewald@... [LTspice]" To: LTspice@... Sent: Friday, July 29, 2016 1:40 PM Subject: Re: [LTspice] Google groups Hello Leon, Have you ?looked at group.io? There is nothing to find about Tekscopes anymore in group.io. It seems they deleted this group. Best regards, Helmut |
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Re: LTspiceXVII released
Hello Helmut,
I now understand the cause of the strange behavior.? I had "Enable beta circuit matrix operations" checked in the Hacks! tab of the Control Panel.? Apparently, among that option's various functions, it removes single component circuit islands. What is interesting is that my selection of this option managed to persist through a complete reinstall of the software.? The Control Panel's persistent settings must be stored in the registry or in a configuration file that does not get erased or overwritten.? I will have to go looking for where such items are stored with the new LTspice. ---In LTspice@..., <analogspiceman@...> wrote : Hello Helmut, V1 1 0 pulse(0 1 0 1u 1u .5m 1m) R1 2 0 1.5k *R2 2 0 1g .machine .output (2) V(1) < .5 .endmachine .tran 3m If I run the above netlist, it only produces 1mV on node 2, but the error log shows why: WARNING: Less than two connections to node 1.? This node is used by V1. WARNING: Less than two connections to node 2 of instance R1:? Node and device optimized out. If I un-comment R2, then it produces 1.5V on node 2.? This is unexpected.? Using the netlist exactly as shown in the Help file does not produce 1V as expected (at least for me). Your netlist shown below works as expected. ---In LTspice@..., <helmutsennewald@...> wrote : Hello analogspiceman, This works for me as I have expected. I don't see any mistake. V1 1 0 pulse(0 1 0 1u 1u .5m 1m) R1 2 00 1.5k .machine .output (2) V(1) < .5 .endmachine .tran 3m ? VX 00 0 0.1 Best ?regards, Helmut |
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Re: Google groups
The Tekscopes group looked at this several months ago, and came up with a solution though not perfect, appears to be a workable one. All messages and I think files, photos? were backed up to another site, I don't remember with out searching the Tekscopes messages and holding it in reserve if DISASTER came. This took a while to find. From a Teckscopes Message dated Apr 16 at 11:01 AM On 16/04/2016 10:27 AM, Michael Dunn md@... [TekScopes] wrote: > > > Note that the transfer will not include files or photos. I've asked if > this > functionality is forthcoming. Then again, it may be worth starting from > scratch so that the areas can be better organized, though that would > entail > some effort given the quantity of files. > I have successfully downloaded all files and photos (and up to April 2014 of the messages) . I am in the process of uploading them to a web-based storage location and creating a secure https encrypted front end for access by members of this group (I am assuming that since this group is private that you all don't want them generally available to anonymous persons). I can certainly make them available for Groups.io to access by ftp or cURL. One thing that I have noticed: Yes there are probably 8,000 members. But likely 7,800 of them have not been active for at least 2 years. Hundreds or thousands, dating back to the year 2000, have 1 to 3 posts. If a huge number of people suddenly tag an unexpected e-mail from Groups.io as spam, there is a strong likelihood that the group will get blacklisted by the anti-spam organizations. You might want to filter the membership list or have interested persons sign up themselves. But that's just my 2? ? Leon Robinson ?? K5JLR Political Correctness is a Political Disease. From: "dg1@... [LTspice]" To: LTspice@... Sent: Friday, July 29, 2016 11:24 AM Subject: Re: [LTspice] Google groups The choice is very painful.. We can stay with Yahoo groups and roll with the punches.. Based on Verizon and how it dealt with AOL, I suspect that in a year or two Yahoo groups will loose ? even the paltry support it has.. I am a member of some Google groups; Google is autocratic in its changes; but usually they post a workaround... I am not partial to Google groups; Any group forum alternative would be acceptable. Bottom line: Verixon bought Yahoo---->AOL is a good case study of ?what they did... ADI bought LTC------>Aquisition of PMI is a good lesson... The very future of this group is threatened.. Let us not seek solace in the status quo.. Let us not jump into an unknown fire either... Cheers AG
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Re: XP spontaneous close
Hello Mike,
Recently on XP SP3 LTSpice IV 4.321 I open a schematic with a .plt file and click run and LTSpice closes. Same with no .plt instead click a circuit node before the run has ended. It's ok if I let it run to the end. Tried re-installing, same. Time to move up to Vista? Just kidding. |
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Re: Google groups
Hello,
The very big Yahoo group "Tekscopes" started to move ?to?the group "Groups.io" in April. A very few weeks later they stopped the move and are now back to Yahoo. I am sure they will stay with Yahoo as long as possible.?That's the same what I will do. Stay as long as possible.? Best regards, Helmut |
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Re: How about UCC25600 ? Re: course of HOWTO build models like (sanken) STR-A6100
Hello, :
I had been aware of that (TI) has a LLC product UCC25600. Is anyone interested in modeling behavior model of this ? Or encrypted one ? Help the estimation of users' development ? Those kind of simulation never gets high quality numerical quantities, but give the concept of the application behaviors. Self modeling may involves imperfects, but it's just for fun. Any opinion is appreciated. Best regards. |
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Re: Google groups
The choice is very painful.. We can stay with Yahoo groups and roll with the punches.. Based on Verizon and how it dealt with AOL, I suspect that in a year or two Yahoo groups will loose ? even the paltry support it has.. I am a member of some Google groups; Google is autocratic in its changes; but usually they post a workaround... I am not partial to Google groups; Any group forum alternative would be acceptable. Bottom line: Verixon bought Yahoo---->AOL is a good case study of ?what they did... ADI bought LTC------>Aquisition of PMI is a good lesson... The very future of this group is threatened.. Let us not seek solace in the status quo.. Let us not jump into an unknown fire either... Cheers AG |
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Re: LTspiceXVII released
Hello Helmut,
V1 1 0 pulse(0 1 0 1u 1u .5m 1m) R1 2 0 1.5k *R2 2 0 1g .machine .output (2) V(1) < .5 .endmachine .tran 3m If I run the above netlist, it only produces 1mV on node 2, but the error log shows why: WARNING: Less than two connections to node 1.? This node is used by V1. WARNING: Less than two connections to node 2 of instance R1:? Node and device optimized out. If I un-comment R2, then it produces 1.5V on node 2.? This is unexpected.? Using the netlist exactly as shown in the Help file does not produce 1V as expected (at least for me). Your netlist shown below works as expected. ---In LTspice@..., <helmutsennewald@...> wrote : Hello analogspiceman, This works for me as I have expected. I don't see any mistake. V1 1 0 pulse(0 1 0 1u 1u .5m 1m) R1 2 00 1.5k .machine .output (2) V(1) < .5 .endmachine .tran 3m ? VX 00 0 0.1 Best ?regards, Helmut |
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Re: LTspiceXVII released
Hello Philippe > See the help with keyword "state" ?[ .MACHINE -- Arbitrary State Machine ] in LTspice XVII The Wine chm viewer doesn't allow search, I just installed xchm and, sure enough, there it is. Thanks for letting me know. > The above netlist produces only 1mV on node 2.? However, if I add a 0V voltage source in series with R1, it produces 1V on node 2.? Very strange. Hello analogspiceman, I just tried this new feature and it seems to go by the book to me (both examples from the help). Could it matter that I run the x64 version in Wine? Vlad ______________________ -- holding, among others: a universal analog/digital filter, block-level models for power electronics (and not only), math blocks with a more stream-lined approach, some digital ADC, DAC, (synchronous-)counter, JKflop, etc. |
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Re: LTspiceXVII released
Hello Helmut,
Just to be sure I just reinstalled the new LTspice from their website.? I am running Windows 7 Home Premium 64 bit I-7. V1 1 0 pulse(0 1 0 1u 1u .5m 1m) R1 2 0 1k .machine .output (2) V(1) < .5 .endmachine .tran 3m The above netlist produces only 1mV on node 2.? However, if I add a 0V voltage source in series with R1, it produces 1V on node 2.? Very strange. ---In LTspice@..., <helmutsennewald@...> wrote : Hello analogspiceman, I tried the 2nd example as you mentioned. When I change R1 to 1k5,?then I get 1.5V as expected. Best regards, Helmut ? |
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Re: Google groups
AG wrote: ? ?"Google groups seems to allow file postings and file sharing..." I have read many negative things about Google Groups.? I thought they eliminated the file storage/sharing capability, a couple of years ago? I subscribe to a number of Google Groups too.? And I remember being sent some administrative messages from Google about the fact that they were about to delete those groups' file storage areas, and that this was our last chance to download them before they were removed from the Group. In my view, Google Groups are not a good alternative to Yahoo!Groups.? Believe it or not, Yahoo!Groups, in spite of all the bugs and all the unwelcome changes and the wrenches they keep throwing into the mechanism, seems to be more stable than Google Groups.? Google happily changes and eliminates functions in their software products without regard for the effects on their user base.? I have seen groups that migrated from Yahoo to Google, then years later scooted back over to Yahoo after what Google did to them. Andy ? |
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Re: vc pot with internal resistance
Hello Philippe > "(it's unclear to me what that "p" means in A's formula, maybe 2 misspelled? " > Isn't it pi ? Wine displays it as the lower case letter "p", and so does xchm. I'd rather not speculate, though "2" would seem more appropiate in the context of A=ln()/2, B=ln()/2 => exp{ [ ln()*atan()+ln() ] / 2 }. Vlad ______________________ -- holding, among others: a universal analog/digital filter, block-level models for power electronics (and not only), math blocks with a more stream-lined approach, some digital ADC, DAC, (synchronous-)counter, JKflop, etc. |
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