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In article ,
John Smith wrote: | Well, nice of you to worry about me copying, copyrighted work and suffering | a penality, but let me worry about that... and MOST technical docs have | fallen to public domain QUICKLY--especially this stuff which was cutting | edge technology--when my grandfather was a boy... How do you define QUICKLY? I don't doubt that stuff that was written when your grandfather was a boy has become public domain, but the process is certainly not quick now. http://www.unc.edu/~unclng/public-d.htm may be of some assistance. Right now, things created today fall (involuntarily) into the public domain in 70 years AT THE MINIMUM, and that may go up if Disney buys another extension from Congress. -- Doug McLaren, Mother Earth is not flat! |
In article ,
Doug McLaren wrote: | How do you define QUICKLY? Sorry, I meant to send this as a private email. It's also US specific, if that's not already painfully obvious. To make this antenna relevant, well, antennas have been well understood by people (not me!) for many many years. I've got an ARRL Antenna handbook from the 1950s, and it's not really that different from the one I got from the 1990s. The writing is different, the pictures of cars with antennas mounted are very different (and entertaining), but the general concepts haven't changed much at all. In the old book, VHF and UHF are sort of an afterthought, which I guess makes sense. But the actual antenna concepts are pretty much the same, even though the books are like 40 years apart. (And to make it copyright related, well, my 1950's ARRL antenna book could have entered the public domain. It depends on if it's copyright was renewed or not.) -- Doug McLaren, , AD5RH Life is fraught with opportunities to keep your mouth shut. |
Aye Reg:
And frequently, I push too much power thru too small a toroid (I like "ferrite ring"--much better sound!).... but then, I kinda like 'em when they are just warm to the touch--and I am so fond of the powered iron... but frankly, do have better luck with ferrite--they forgive me much more often... from posts I have read--others feel the same... I am getting your emails now my friend, they are much welcomed here... perhaps we can chat-up pascal now... Warmest regards, John "Reg Edwards" wrote in message ... John, the trouble is at my end, caused by my nincompoop of a dis-service provider. If previous experience is any guide, it will take weeks to sort it out. When it comes to managing Windows, OE and the Internet, I'm a mere novice. ( The most important thing about ferrite rings is their size. You can't get a dozen turns of speaker cable on 5/8" diameter rings. ) ---- Reg. ============================== "John Smith" wrote in message ... Ferrite ring? Now where would I ever find one of those--last guy told me to buy all these dern toroids!!! grin Good morning Reg! Warmest regards, John "Reg Edwards" wrote in message ... I'd like to make a 1:1 balun, =========================== Wind about a dozen turns of twin, stranded, 18 AWG, clear-plastic-insulation, speaker cable (or similar) around a 2" diameter ferrite ring. About 3/8" cross-section. Permeability 200 to 500. And there you have it. Speaker cable is better than coax on both mechanical and electrical grounds. ---- Reg, G4FGQ. |
John Smith wrote:
... but then, I kinda like 'em when they are just warm to the touch--and I am so fond of the powered iron... Does your powdered iron get warm very often? -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- |
If I wind for 160m and try to run "real" power on 10 meters--yes Cecil they
do--I expect that is because the design is bad--I know it--but am willing to suffer the lossess... your thoughts? Even 25 watts (when running QRO) spent warming a 2.5 inch core gets it warm after a bit... how can I improve this? Sorry, got called out of town on business... back not... not sure how long... but can answer quicker for now... Warmest regards, John "Cecil Moore" wrote in message ... John Smith wrote: ... but then, I kinda like 'em when they are just warm to the touch--and I am so fond of the powered iron... Does your powdered iron get warm very often? -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 100,000 Newsgroups ---= East/West-Coast Server Farms - Total Privacy via Encryption =--- |
I "practice" nothing... I simply do, watch me...
Warmest regards, John "J. Mc Laughlin" wrote in message ... Dear "John Smith" Fair-use is one of the most complex parts of the law. I have studied it and applied it for more many years than you have been a poseur. It has certainly caused considerable amusement among the knowledgeable people in this group to read you suggesting that I read up on the subject. Your pretending to practice law would only be amusing if it were not that some reading what you write might believe you. You copy. You claim it is protected under the doctrine of fair-use and yet you provide no attribution nor context that could support fair-use. That is old fashion plagiarizing. You then start to argue that such theft is for the good of the recipient. All that can be said is that you must have had a mother, and she would be ashamed. Mac N8TT -- J. Mc Laughlin; Michigan U.S.A. Home: "John Smith" wrote in message ... Well, nice of you to worry about me copying, copyrighted work and suffering a penality, but let me worry about that... and MOST technical docs have fallen to public domain QUICKLY--especially this stuff which was cutting edge technology--when my grandfather was a boy... There is also "fair use", you may want to read up on it... since the drawing I pasted here is less than a page (much less) it OBIVIOUSLY would fall under this--and I would be covered yet again... Most importantly is the necessity to get facts and info into the hands needing it, in a form which they can understand--in a manner which does not chase them off.. something I DON'T see happening here. Warmest regards, John "J. Mc Laughlin" wrote in message ... Dear "John Smith" The probability that you copied works that were not covered by copyright is minuscule. For such a work not to be covered by copyright it would have had to be declared in the public domain by the author or publisher. Here is a link to the Copyright Office that provides some authoritative information about low long copyright protection lasts: http://www.copyright.gov/circs/circ1.html#hlc Having expressed disdain for lawyers, it is unlikely that you are a lawyer, whatever and whoever you are. The Patent Office lists three patent attorneys with the name of John Smith. I doubt that you are one of them. When you copy works that are almost surely copyrighted and provide no attribution, you encourage persons with an interest in the works to track you down. Not wise. Mac N8TT -- J. Mc Laughlin; Michigan U.S.A. Home: "John Smith" wrote in message ... ... as a matter of fact, they are scanned from "copyright expired" material... I took the time to bring everyone up to speed on copyright here... and even to know the difference between expired and not... for some strange reason some have difficulty dealing with this... He is correct about it being a voltage balun, which I believe is what you first asked about, at least that is what the balun you referenced looked like to me--I make mistakes and could have been mistaken... however, there is also a post from me in this thead on the current balun you can use... when you read my post on the quick-start on the differences for voltage/current baluns you can decide for yourself--on what you need... baluns are a very simple thing, don't know why so much mystery wants to end up wrapped about 'em... Warmest regards, John "Ian White GM3SEK" wrote in message ... John Smith wrote: Here is a url to a page I put up--shows both a 1:1 and a 4:1 balun--winding diagrams are below each, respectively... Don't bother to look - they are both voltage baluns. (And the drawings have been scanned from someone else's copyright material.) -- 73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek |
John Smith wrote:
If I wind for 160m and try to run "real" power on 10 meters--yes Cecil they do-- I might not have even noticed my leg being pulled but I have a torn ACL that is a very sensitive detector. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
Doug:
I NEVER want to copy whole books, I can't see a reason for copying whole chapters, seldom would there be a need for whole pages--usually short of a page would suffice--this would fall under "fair use", if proper credit is give author/material... not only that, but take where I gave a URL, I could just have easily digested the info, transformed it into my own words and dumped it here--a little more work--but would only take me minutes longer--literally!!! When give the choice--I gave the man credit for where I had found it... But, make no mistake, I am not here for "hero worship." However, if you don't think I have gotten to here without having stood upon the shoulders of others--you are mistaken--and I DO NOT make that mistake--all my very little and humble learnings have come from other men or women (hell, maybe aliens! grin)--I would suppose, so has yours--unless you are psychic and getting it "directly from God." I could be mistaken, but I think I remember reading articles by Roy Lewellan when I was much younger--my memory is already not as good as once--but I would swear I seen papers/articles, etc from him when I was a teenager--that knowledge has severed me well--as well as I can remember... I am not here to claim other mens knowledge as "original ideas" of my own--rather my whole knowledge is composed of bits and pieces of others--isn't yours? At this point, it would be impossible to tell what bit or what piece has come from who--or when... but I will do the best I can here... someway we will find a way for this to work... Warmest regards, John "Doug McLaren" wrote in message ... In article , Doug McLaren wrote: | How do you define QUICKLY? Sorry, I meant to send this as a private email. It's also US specific, if that's not already painfully obvious. To make this antenna relevant, well, antennas have been well understood by people (not me!) for many many years. I've got an ARRL Antenna handbook from the 1950s, and it's not really that different from the one I got from the 1990s. The writing is different, the pictures of cars with antennas mounted are very different (and entertaining), but the general concepts haven't changed much at all. In the old book, VHF and UHF are sort of an afterthought, which I guess makes sense. But the actual antenna concepts are pretty much the same, even though the books are like 40 years apart. (And to make it copyright related, well, my 1950's ARRL antenna book could have entered the public domain. It depends on if it's copyright was renewed or not.) -- Doug McLaren, , AD5RH Life is fraught with opportunities to keep your mouth shut. |
No, no leg pulling, toroids can be lossy (and, as we all know, more often
than not--loss = heat)... I find a 2-50 Mhz balun to be more of a "myth" than a reality... even if I wind it out of the "proper" core material to begin with.... (often it is just what I have on hand grin) I warned ya, my motto really is, "What ever works!!!".... I just failed to add... "...even if it is lossy!" Proper core material is important--never had one "crack" as I have heard about though... Warmest regards, John "Cecil Moore" wrote in message ... John Smith wrote: If I wind for 160m and try to run "real" power on 10 meters--yes Cecil they do-- I might not have even noticed my leg being pulled but I have a torn ACL that is a very sensitive detector. -- 73, Cecil http://www.qsl.net/w5dxp ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
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