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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#41
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![]() "Chris" wrote in message ups.com... Winfield Hill wrote: Chris wrote... I feel the IP is embedded in the instrument, not the manual. Thus the manual provides a way to make use of the IP you've bought and paid for in the instrument. It's the old instruments HP / Agilent no longer supports that we're talking about here. The simple fact is that there are *far* more instruments out there, than original manuals, because when one goes surplus the company's file drawers of manuals tend to get thrown away or otherwise lost, while the old instrument exchanges hands a few times and finds a new home. Plus there are manuals that disappear for who knows what reason. The manuals for some HP equipment I purchased new when I came to the Institute 17 years ago somehow no longer exists at the Institute. Did a postdoc carry it off with him in his files when he left? Did it get thrown out by mistake? Who can say, but it's gone. And now a copy is not available from Agilent, the product line having been discontinued long ago... So I do rely on others who are willing to make a copy to keep the IP in my instrument useful. -- Thanks, - Win Thanks for taking the time to respond, Mr. Hill. I stand corrected -- there are far more "orphaned" old HP instruments out there than original manuals. Your point is valid. Maintaining an instrument document control system is relatively easy in a manufacturing facility with a limited number of engineering personnel. It's certainly much more difficult in an academic environment with dozens or even hundreds of students who all want access to the instruments and their manuals, and don't have enough experience with instruments to make educated guesses about how they work. That doesn't make sense. All the department has to do is hand over the manuals to the library (this _is_ in an academic emvironment!) and let them put the manuals in Reserve, where they can be checked out for a very limited amount of time, say two hours, and not be taken from the facility. The student can then peruse, or even copy them if he has a pocketful of dimes. At least this is how we do it at the college where I work. Actually, the student can now buy credits on a card to put in the copier, so he doesn't even need coins to make copies. One can see this big warning sign above the copier with legalese about copyright restrictions etc. Mostly ignored. :-P [snip] I agree that the value of the instrument is inherent in the instrument itself, not the manual. But just the fact that we're having this conversation indicates the documentation is of value, although of another kind. It allows me to utilize the investment in the instrument. Everyone, including the legal system, should view certain types of manuals as different than other IP. In the case of an instruction manual, this is is directly related to the instrument, and has no real use or value on its own. Therefor the owner of an instrument should have the right to own this manual, no matter where or how it was obtained. I would go as far as to say that the instrument maker should be obligated to supply one to the owner upon proof of ownership, but the makers wouldn't want to be stuck with that responsibility. OTOH the repair, service, maintenance manuals are another case, and since they might reveal something about the instrument that's not notmally available to the owner, the owner wouldn't have any right to these manuals. [snip] Thanks again (and the check is still ready to be signed ;-) Chris |
#42
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Watson A.Name - \"Watt Sun, the Dark Remover\" wrote...
Everyone, including the legal system, should view certain types of manuals as different than other IP. In the case of an instruction manual, this is is directly related to the instrument, and has no real use or value on its own. Therefor the owner of an instrument should have the right to own this manual, no matter where or how it was obtained. I would go as far as to say that the instrument maker should be obligated to supply one to the owner upon proof of ownership, but the makers wouldn't want to be stuck with that responsibility. Hear! Hear! OTOH the repair, service, maintenance manuals are another case, and since they might reveal something about the instrument that's not notmally available to the owner, the owner wouldn't have any right to these manuals. Naturally I disagree: Owners of hardware should be able to get the service manuals for their purchased equipment. Some sellers want to keep the repair profits for themselves, but in my opinion this is unwise. OK, we'll leave that point. However, surely you agree that if the manufacturer made detailed service manuals available at the time of original sale, as HP did, the associated IP should be treated the same as the instruction manual, per your statement. Thanks again (and the check is still ready to be signed ;-) Which check is that? -- Thanks, - Win |
#43
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![]() wrote in message ... On Fri, 22 Apr 2005 23:34:35 -0700, "Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote: One thought. Many of the test equipment (and manuals) were duplicated for the miltary. One off the top of my head is the AN/USM-81 which was the same as the Tek 541 'scope, IIRC. This may not be copyrighted, or may have some other way of getting around the copyright laws. And many schools, such as the military schools, published schematics to use for training. Jeepers, I wish those military manuals were better. I downloaded a few of them from https://www.logsa.army.mil/etms/online.htm and although they were usefull, they certainly were not up to par when compared to the real thing. Often unreadable schematics and missing vital info. Well, the 'unreadable' and 'missing' sound to me like that's a copying or scanning problem, not the fault of the manual itself. Generally, when I was in the army, the manuals were broken down into 5 levels. 1 - operation (like how to drive a car) 2 - maintenance (like how to change the oil, add water to radiator, etc.) 3 - service (like tires, batteries, etc.) 4 - field repair (like fixing the starter or the brakes) 5 - depot repair (like rebuilding the engine) Those 5 "echelons" are only a rough idea of how the manuals were arranged. Some military manuals were combined, such as a "-35" manual included the 3rd thru 5th echelon - basically everything about service and repair. A "-15" manual would be all of the above. You may have to get 2 or more military manuals to get all the info that might be in a regular equipment manual from the manufacturer. If anyone has found a better place to download this stuff then I'd love to see a follow up post about it. Well, if you are in the military, I would imagine that all of that is now online and available to the authorized people. On a side note, it's my experience that there are not many folks out there who really know how to maintain electronic records without corruption and loss for more than a few years. I've seen data get corrupt because folks do silly things like copy large repositories of data from one place to another and then neglect to do a binary compare, run disk defrag software against large drives containing valuable data on machines with crappy systemic bit-error-rates, transfer gigabytes of data on computers without ECC memory or without UPS protection, no backup strategies or crappy media or unmaintained tape drives. Failure to check C1/C2 error rates on freshly burned CDROMS, and on and on. Many perils. Welcome to the Real World. Bugs eat papers, manuals and books. Acid in the paper makes it turn brittle and brown after a few decades, making it nearly useless. But these problems are not related to the topic were discussing. However the bookworms should be very concerned about the copyright restrictions because they are severely restricting their food source! ;-) [snip] Stepan |
#44
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![]() "Rich Grise" wrote in message news ![]() On Fri, 22 Apr 2005 23:50:26 -0700, Watson A.Name - "Watt Sun, the Dark Remover" wrote: "Jim Thompson" wrote in message [snip] But I've had a bias against hp equipment for at least 30 years... a whole lot of it was crap or became crap within one year. When I ran the Phoenix Analog Design Center for GenRad I forbade the purchase of hp 'scopes. But their scopes always took a back seat to Tek, so if they didn't want to flush money down the toilet, they would not have bothered to invest the money to make and sell a scope that was competetive with Tek. However I used a HP 1741 back in '79, and I thought it was a solid scope. It was a blessing after rubbing my fingers raw from turning the timebase and other knobs 100's of times a day on a Tek toob scope. The HP probably saved the company tons of money on electric and air conditioning costs by getting rid of those old Tek toob scopes, which used a half a kilowatt of power all day long. HP dumped their REALLY crap scopes on the military. The worst scope I ever tried to use was an HP in a waterproof AGE[1] box. Not only did it have the legendary "can't trigger" problem that's endemic to HP scopes, but the waterproof knobs gave new meaning to the term "backlash." But then again, the only thing I could honestly testify to re HP test equipment is they never got the triggering as good as Tek. All of their other stuff was, as we all know, essentially perfect. Aw, c'mon, Rich! We all know that perfect is a straight wire with gain, with a bandwidth from DC to daylight. And we all know that even HP couldn't do that. Nice try. Cheers! Rich [1] Aerospace Ground Equipment |
#45
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![]() Winfield Hill wrote: snip Thanks again (and the check is still ready to be signed ;-) Which check is that? -- Thanks, - Win The check to purchase the third edition of a "certain universally respected textbook of Electronics Engineering" mentioned above, of course. By the way, I bought the second edition used. I'd consider it an honor to be able to cut a check for a new copy of the 3rd edition, so the authors could directly see the benefit. In business, the best way to say "thanks for the help" is in cash. Which is kind of the point of this whole discussion, I suppose. Thanks (of the non-monetary variety this time, I'm afraid) Chris |
#46
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On Fri, 22 Apr 2005 15:02:37 -0500, John Fields
wrote: _If_ Agilent was closing them off from a solution, perhaps you'd have a point. However, I understand that Agilent has licensed the reproduction and sale of manuals and makes reference to those vendors in their (Agilent's) web site, so that's hardly what I'd call "closing them off from a solution". Have they licensed reproduction of manuals? All the ones listed seem to be the usual used manual brokers. John |
#47
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On Sat, 23 Apr 2005 09:32:23 -0700, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" wrote: Aw, c'mon, Rich! We all know that perfect is a straight wire with gain, with a bandwidth from DC to daylight. Yes, this is the classic 0 dB brickenbox amplifier. John |
#48
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![]() Watson A.Name - Watt Sun, the Dark Remover wrote: That doesn't make sense. All the department has to do is hand over the manuals to the library (this _is_ in an academic emvironment!) and let them put the manuals in Reserve, where they can be checked out for a very limited amount of time, say two hours, and not be taken from the facility. The student can then peruse, or even copy them if he has a pocketful of dimes. At least this is how we do it at the college where I work. Actually, the student can now buy credits on a card to put in the copier, so he doesn't even need coins to make copies. One can see this big warning sign above the copier with legalese about copyright restrictions etc. Mostly ignored. :-P [snip] I agree that the value of the instrument is inherent in the instrument itself, not the manual. But just the fact that we're having this conversation indicates the documentation is of value, although of another kind. It allows me to utilize the investment in the instrument. Everyone, including the legal system, should view certain types of manuals as different than other IP. In the case of an instruction manual, this is is directly related to the instrument, and has no real use or value on its own. Therefor the owner of an instrument should have the right to own this manual, no matter where or how it was obtained. I would go as far as to say that the instrument maker should be obligated to supply one to the owner upon proof of ownership, but the makers wouldn't want to be stuck with that responsibility. OTOH the repair, service, maintenance manuals are another case, and since they might reveal something about the instrument that's not notmally available to the owner, the owner wouldn't have any right to these manuals. [snip] It's been too many years -- placing the manuals on reserve in the Engineering Department library is an obvious idea. A smart instrument manufacturer might also allow professors to make a copy for their personal use or to chain down in the lab, where it's most useful. If I buy a old used car which is no longer supported by the dealer network (like a '67 Ford Mustang), I expect a set of keys from the seller, not Ford. I wouldn't buy a car without them. I feel the manuals are an integral part of the whole instrument package, and I also feel that a manual should be sold with a used/obsolete instrument if it was originally sold with that manual. Ideally, the seller of the obsolete instrument should provide that manual, and buy it if he doesn't have it. Fact is, though, most sellers of old HP instruments don't provide the manuals. That means we've got to scrounge them up. Agilent provides a list of suggested vendors he http://tinyurl.com/brg64 I ran down the eight web links listed on the above page looking for the HP 5370B manual. ManualsPlus has it for $75.00 USD. Consolidated Surplus (which is double-linked, there are actually only seven in the list) shows available, price not listed. W.J. Ford Surplus Enterprises shows Not Available but e-mail to be sure (too bad -- they rent manuals for $10/month!). The others come up blank. Also, yesterday I made a call to another vendor I occasionally use and found that he had it, too. He wanted more than $75 for it, though. To be honest, I think all of these arguments about how manufacturers should provide more manuals for old, orphaned instruments, or broadcast them free on the internet, would hold a lot more water if there weren't any used, legal manuals out there. humor If I could be permitted an analogy. Let's look at the user manual "The Joy of Sex" by Alex Comfort. The book is not sex. You don't need the manual to engage in sex, or to experience joy in sex. The manual has no intrinsic use for sex on its own, unless you happen to want to know how to use your instrument better. However, Dr. Comfort's heirs (he passed away a few years ago, I hear) would be most unhappy to hear that, because of these admittedly true facts, you copied the manual. They would, however, encourage you to engage in sex to your heart's content, even if the instrument is old, and even if it is no longer well-"supported". As I remember (it's been about 25 years (since I *read the book*, Rich!) ), Dr. Comfort actually recommended that. :-P /humor I still think a lot of this discussion comes down to whether electronics designers (who, after all, are being paid to create intellectual property) are just trying to skate around the necessity of paying for somebody else's intellectual property, which has admitted value. Otherwise, why would we be having this discussion at all? I understand everything that's been said about this by others, and actually agree with a lot of it. I respect these opinions, and everyone here has good arguments. But I'm not going to change my opinion, because it's a matter of principle and the way I do business. My employer or customer is paying for his pleasures. Period. If it's copyrighted, the person who's paying will get a legal copy. There are better ways to save a few bucks. And if I buy a used and non-supported HP instrument (like the HP3456A), I'll spend $25 more for a legal manual, even though I could find a copy. That's one of the joys of being in business. If the copyright laws need to be changed (and Frith knows they do), then let's change 'em. Chris |
#49
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I read in sci.electronics.design that "Watson A.Name - \"Watt Sun, the
Dark Remover\"" wrote (in ) about 'Copyright on HP service manuals', on Sat, 23 Apr 2005: I would go as far as to say that the instrument maker should be obligated to supply one to the owner upon proof of ownership, but the makers wouldn't want to be stuck with that responsibility. Most manuals contain warnings about safety issues. Denying access to those warnings could be contrary to Health and Safety laws. -- Regards, John Woodgate, OOO - Own Opinions Only. There are two sides to every question, except 'What is a Moebius strip?' http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk |
#50
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![]() wrote in message ... On Sat, 23 Apr 2005 07:42:30 GMT, wrote: On a side note, it's my experience that there are not many folks out there who really know how to maintain electronic records without corruption and loss for more than a few years. It just occured to me that I used to do a nifty thing to protect my most valuable data from single byte corruption as can be caused by oxidized memory DIM contacts etc. I would burn the data to a RAW CDROM image file which includes error correction and just save it to my hard drive. Once I did that I could open up the CD image in a hex editor and pepper it full of crap, but then when I would mount it the error correction would keep it perfectly readable! Pretty cool. Well, that doesn't help if the data on the disk itself gets corrupted. Then you get the all-too-familiar A: drive "Abort, Retry, Fail ?" error message and you're still SOL. Stepan |
#51
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On 23 Apr 2005 02:51:07 -0700, Eric Smith wrote:
Some software will let you generate a "raw" image (2352 byte sectors rather than 2048). This does contain the top level of the error correction codes. But it doesn't have the bottom two layers, or the interleaving, so by itself it doesn't gain much. I've used CDRWIN to generate my 2353 byte raw images. This is important to me because things like equipment manuals which contain text can be kept heavily compressed, so if a single little error creeps in, it can affect large portions of the text. Stepan |
#52
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On Sat, 23 Apr 2005 09:32:23 -0700, Watson A.Name - "Watt Sun, the Dark
Aw, c'mon, Rich! We all know that perfect is a straight wire with gain, No, no. That's the LIRPA, from that QST article "Power a-plenty - for pennies!" You just take the fat wire out of the back of your transmitter, and connect it to a skinny wire, and at the joint, all the electrons crowd together trying to get through the skinny wire, causing a dramatic increase in voltage, much like a traffic jam. ;-P Rich |
#53
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On Sat, 23 Apr 2005 12:58:44 -0700, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" wrote: Well, that doesn't help if the data on the disk itself gets corrupted. Then you get the all-too-familiar A: drive "Abort, Retry, Fail ?" error message and you're still SOL. Well, you can always read the raw data from the floppy and do data recovery on the image file by hand... This is where I think it's nice to have some error correction and interleave in the data being recovered. You certainly don't get that with FAT12, and especially not with compressed filesystems. Netapp has an iteresting product that is esentially a RAID5 but with two parity disks instead of just one. You have to loose two drives to loose the array. Stepan |
#54
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On Sat, 23 Apr 2005 20:09:52 +0100, the renowned John Woodgate
wrote: I read in sci.electronics.design that "Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote (in ) about 'Copyright on HP service manuals', on Sat, 23 Apr 2005: I would go as far as to say that the instrument maker should be obligated to supply one to the owner upon proof of ownership, but the makers wouldn't want to be stuck with that responsibility. Most manuals contain warnings about safety issues. Denying access to those warnings could be contrary to Health and Safety laws. Ha, I *like* it. That's the sort of stuff that a lawyer could understand. Maybe they'd change their tune if they thought they might be liable for withholding safety information from users. Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com |
#55
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On Sat, 23 Apr 2005 20:31:49 GMT, Rich Grise
wrote: No, no. That's the LIRPA, from that QST article "Power a-plenty - for pennies!" You just take the fat wire out of the back of your transmitter, and connect it to a skinny wire, and at the joint, all the electrons crowd together trying to get through the skinny wire, causing a dramatic increase in voltage, much like a traffic jam. That's called a stub. It's an impedance mismatch causing a standing wave. The skin effect renders the thin wire resistive, so it's presence is not relevant. This is a perfectly normal phenomenon, there is nothing silly about it. Stepan |
#56
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On Sat, 23 Apr 2005 10:23:23 -0700, John Larkin
wrote: On Fri, 22 Apr 2005 15:02:37 -0500, John Fields wrote: _If_ Agilent was closing them off from a solution, perhaps you'd have a point. However, I understand that Agilent has licensed the reproduction and sale of manuals and makes reference to those vendors in their (Agilent's) web site, so that's hardly what I'd call "closing them off from a solution". Have they licensed reproduction of manuals? All the ones listed seem to be the usual used manual brokers. --- I though I read here that they had issued licenses, but I didn't check their website to make sure. Mea Culpa... -- John Fields Professional Circuit Designer |
#57
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On Sat, 23 Apr 2005 07:52:57 -0400, Spehro Pefhany
wrote: One could argue that the copyright infringement unnaturally prolongs the useful life of unsupported HP/Agilent instruments, thus reducing the overall market for new instruments. On the other hand, providing fee manuals encourages folks who are RESPONSIBLE FOR making corporate PURCHASING decisions, to buy nice vintage HP equipment on eBay for hobby use. This is a great way to promote NEW EXPENSIVE HP product into the corporate environment. If folks end up purchasing Keithley for hobby use just because they can download the manuals, they might come to see that some of the Keithley stuff is quite nice. Also, each and every time a lawyer sends out a cease and desist in the name of protecting his client's interests, he can bill for his service. I'll bet that depending on the arrangement, he can often do this on his own initiative. Stepan |
#58
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On Sat, 23 Apr 2005 16:19:41 -0500, John Fields
wrote: I though I read here that they had issued licenses, but I didn't check their website to make sure. Mea Culpa... Data/IO did something like many years ago with all their vintage EPROM programmers. They sold/licensed the service/support for their legacy products to another company, but they did not get out of the business. Stepan |
#59
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On 23 Apr 2005 09:01:48 -0700, Winfield Hill
-edu wrote: Watson A.Name - \"Watt Sun, the Dark Remover\" wrote... Everyone, including the legal system, should view certain types of manuals as different than other IP. In the case of an instruction manual, this is is directly related to the instrument, and has no real use or value on its own. Therefor the owner of an instrument should have the right to own this manual, no matter where or how it was obtained. I would go as far as to say that the instrument maker should be obligated to supply one to the owner upon proof of ownership, but the makers wouldn't want to be stuck with that responsibility. Hear! Hear! --- I disagree. If the instrument maker supplied an instruction manual with the instrument when it was first sold, then, as far as I'm concerned, he's under no obligation to provide further _free_ copies of that documentation. As a courtesy, it might be nice for them to do so, but why should they _have_ to? --- OTOH the repair, service, maintenance manuals are another case, and since they might reveal something about the instrument that's not notmally available to the owner, the owner wouldn't have any right to these manuals. Naturally I disagree: Owners of hardware should be able to get the service manuals for their purchased equipment. --- If they _can_. When you buy an instrument which you know isn't going to be accompanied by documentation, then why should anyone be obligated to supply you with that documentation? They shouldn't. The responsibility for obtaining that documentation falls directly on the owner of the instrument, and no one else, and to make the assumption that it should be supplied to you, for free, is ludicrous. --- an instrumentSome sellers want to keep the repair profits for themselves, but in my opinion this is unwise. OK, we'll leave that point. --- No, let's _not_ leave that point unexplored. _Why_ do you think it's unwise? --- However, surely you agree that if the manufacturer made detailed service manuals available at the time of original sale, as HP did, the associated IP should be treated the same as the instruction manual, per your statement. --- I don't understand the point you're trying to make. -- John Fields Professional Circuit Designer |
#60
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On Sat, 23 Apr 2005 16:39:36 -0400, Spehro Pefhany wrote:
On Sat, 23 Apr 2005 20:09:52 +0100, the renowned John Woodgate wrote: I read in sci.electronics.design that "Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote (in ) about 'Copyright on HP service manuals', on Sat, 23 Apr 2005: I would go as far as to say that the instrument maker should be obligated to supply one to the owner upon proof of ownership, but the makers wouldn't want to be stuck with that responsibility. Most manuals contain warnings about safety issues. Denying access to those warnings could be contrary to Health and Safety laws. Ha, I *like* it. That's the sort of stuff that a lawyer could understand. Maybe they'd change their tune if they thought they might be liable for withholding safety information from users. Ah! At Last! A thread that has piqued the Grand Masters! ;-P ;-P ;-) -- Cheers! Rich ------ "SHOW ME THE WAY" |
#61
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On Sat, 23 Apr 2005 21:05:28 +0000, snovotill wrote:
On Sat, 23 Apr 2005 20:31:49 GMT, Rich Grise No, no. That's the LIRPA, from that QST article "Power a-plenty - for pennies!" You just take the fat wire out of the back of your transmitter, and connect it to a skinny wire, and at the joint, all the electrons crowd together trying to get through the skinny wire, causing a dramatic increase in voltage, much like a traffic jam. That's called a stub. It's an impedance mismatch causing a standing wave. The skin effect renders the thin wire resistive, so it's presence is not relevant. This is a perfectly normal phenomenon, there is nothing silly about it. Stepan Well, notwithstanding the extraneous apostrophe, the whole thing was a gag. Its name, LIRPA, is "April" spelled backwards, a la "April Fools!" (to be fair, they didn't say just "Lirpa," they said "Lirpa 1".) :-) -- Cheers! Rich ------ "Flappity, floppity, flip The mouse on the Mobius strip; The strip revolved, The mouse dissolved In a chronodimensional skip." |
#62
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Unfortunately the restriction of documentation for obsolete equipment is
a profit motive by Agilent as it promotes the planned obsolescence of older equipment which competes with new equipment on the market. Joe Winfield Hill wrote: Stepan, wrote... HP is enforcing their copyright over manuals, even for old unsupported equipment. Look at this: http://bama.sbc.edu/images/Letter%204-18-05.pdf I see the BoatAnchor Manual Archive public-service site has complied, http://bama.sbc.edu/hp.htm removing masses of valuable documentation for ancient hp instruments from public availability. That letter from Agilent's counsel is going to bring a massive response from me as director of a Harvard University research laboratory, directed to the relevant authorities at Agilent to get the policy changed. It's dramatically counter-productive to their own business interests, and it's manifestly unfair to the owners of old HP / Agilent equipment who for one reason or another no longer have an operating or service manual, and who cannot get one from Agilent. For Agilent to close them off from a solution to their problem is to render their bought and paid-for equipment useless. It also means Agilent is capriciously denying the implied warranty of merchantability for their older products; the product can hardly do what it is supposed to do if the owner doesn't know what button to push, or how to interpret the panel reading. And it means Agilent is denying the owners' right to his own self-help in repairing something he purchased fair and square. Moreover, it takes a big step toward removing from the public weal the value of old instruments, no longer manufactured, which in many cases are not replaced by newer instruments performing the same function. -- Joe Leikhim K4SAT "The RFI-EMI-GUY" The Lost Deep Thoughts By: Jack Handey Before a mad scientist goes mad, there's probably a time when he's only partially mad. And this is the time when he's going to throw his best parties. |
#63
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![]() wrote in message ... On 23 Apr 2005 02:51:07 -0700, Eric Smith wrote: Some software will let you generate a "raw" image (2352 byte sectors rather than 2048). This does contain the top level of the error correction codes. But it doesn't have the bottom two layers, or the interleaving, so by itself it doesn't gain much. I've used CDRWIN to generate my 2353 byte raw images. This is important to me because things like equipment manuals which contain text can be kept heavily compressed, so if a single little error creeps in, it can affect large portions of the text. Stepan Compression used to be necessary when HDDs were under a GB, but not anymore. Compress your .JPGs, .MPGs and .WAVs, but don't try to compress something that doesn't take up much room to begin with. HDD space is a half buck per GB, fer crying out loud! Use it! Instead of compressing the data, get a bigger HDD! |
#64
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![]() "**THE-RFI-EMI-GUY**" wrote in message . .. Unfortunately the restriction of documentation for obsolete equipment is a profit motive by Agilent as it promotes the planned obsolescence of older equipment which competes with new equipment on the market. That sounds like Marketing-Speak to me. You can put it where the sun don't shine. Joe [snip] -- Joe Leikhim K4SAT "The RFI-EMI-GUY" |
#65
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On Sat, 23 Apr 2005 19:49:03 -0700, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" wrote: Compression used to be necessary when HDDs were under a GB, but not anymore. Compress your .JPGs, .MPGs and .WAVs, but don't try to compress something that doesn't take up much room to begin with. HDD space is a half buck per GB, fer crying out loud! Use it! Instead of compressing the data, get a bigger HDD! I wish I could afford more space. I've got a 250GB drive in my server, and then I have two more 250GB drives that I use for rotating backups. Once a year I freeze the backup to DVD. What I need is four 250GB drives in a RAID5 in my server, but then I have to buy more drives for backup too. The price quickly becomes prohibitive, and I'm not even taking the cost of a SATA RAID5 controller (3ware?) into account. Ouch! |
#66
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On Sun, 24 Apr 2005 00:17:17 GMT, Rich The Newsgroup Wacko
wrote: "Flappity, floppity, flip The mouse on the Mobius strip; The strip revolved, The mouse dissolved In a chronodimensional skip." If you planted grass on a mobius strip, then your mouse could never say that the grass is always greener on the other side. Stepan |
#67
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#68
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I sense I am getting flamed for some reason. I am not an apologist for
Agilent. In fact when I buy any substantial new equipment I insist on getting full service manuals because of that very reason. Watson A.Name - "Watt Sun, the Dark Remover" wrote: "**THE-RFI-EMI-GUY**" wrote in message ... Unfortunately the restriction of documentation for obsolete equipment is a profit motive by Agilent as it promotes the planned obsolescence of older equipment which competes with new equipment on the market. That sounds like Marketing-Speak to me. You can put it where the sun don't shine. Joe [snip] -- Joe Leikhim K4SAT "The RFI-EMI-GUY" -- Joe Leikhim K4SAT "The RFI-EMI-GUY" The Lost Deep Thoughts By: Jack Handey Before a mad scientist goes mad, there's probably a time when he's only partially mad. And this is the time when he's going to throw his best parties. |
#70
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John Woodgate wrote:
I read in sci.electronics.design that wrote (in ) about 'Copyright on HP service manuals', on Sun, 24 Apr 2005: If you planted grass on a mobius strip, then your mouse could never say that the grass is always greener on the other side. The grass wouldn't grow, because it wouldn't be able to work up which way was 'up'. -- Regards, John Woodgate, OOO - Own Opinions Only. There are two sides to every question, except 'What is a Moebius strip?' The Moebius strip was inspired after observing that politicians wander all over the place, never get anywhere, and always end up where they started! ;-) -- Former professional electron wrangler. Michael A. Terrell Central Florida |
#71
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On Sun, 24 Apr 2005 15:01:22 +1000, dmm
wrote: Wow. 1T byte. What are you storing, if I may ask? Well, it's easy to fill a big drive up when you use computers in place of your TV/VCR and Stereo, and when you scan everything in, digital camera which takes movie clips, the wife and two kids, a home network with 7 computers on it, and software for both windows and linux, a full set of MAME ROMS and disk images, bla bla bla. We have 37 terrabytes worth of x-rays, CT scans etc at the hospital where I work, all online in spinning disk, so a measly 250GB at home doesn't look like a lot in comparison. A few more years and we'll all have terrabyte hard drives at home. Stepan |
#72
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![]() wrote in message ... On Sat, 23 Apr 2005 19:49:03 -0700, "Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote: Compression used to be necessary when HDDs were under a GB, but not anymore. Compress your .JPGs, .MPGs and .WAVs, but don't try to compress something that doesn't take up much room to begin with. HDD space is a half buck per GB, fer crying out loud! Use it! Instead of compressing the data, get a bigger HDD! I wish I could afford more space. I've got a 250GB drive in my server, and then I have two more 250GB drives that I use for rotating backups. Once a year I freeze the backup to DVD. What I need is four 250GB drives in a RAID5 in my server, but then I have to buy more drives for backup too. The price quickly becomes prohibitive, and I'm not even taking the cost of a SATA RAID5 controller (3ware?) into account. Ouch! Gimme a stinkin' break! It's all that crap - music and movies - that's taking up all your space. Get rid of them! Or put them on CDs or DVDs. |
#73
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Watson A.Name - "Watt Sun, the Dark Remover" wrote:
Try this source. I got some HP manuals from Ed Matsuda for a very reasonable price. His email address is edmatsuda at earthlink.net. [snip] Thanks for that. I have in fact been offered the loan of a manaul. |
#74
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![]() "**THE-RFI-EMI-GUY**" wrote in message ... I sense I am getting flamed for some reason. I am not an apologist for Agilent. In fact when I buy any substantial new equipment I insist on getting full service manuals because of that very reason. No. If the equipment makers have to sell newer equipment by making it difficult for used equipment, instead of adding features and performance to the newer equipment to make it sell itself, then they're just a bunch of marketers and should be in the 'selling sugar water' business, as Jobs once put it. Watson A.Name - "Watt Sun, the Dark Remover" wrote: "**THE-RFI-EMI-GUY**" wrote in message ... Unfortunately the restriction of documentation for obsolete equipment is a profit motive by Agilent as it promotes the planned obsolescence of older equipment which competes with new equipment on the market. That sounds like Marketing-Speak to me. You can put it where the sun don't shine. Joe [snip] -- Joe Leikhim K4SAT "The RFI-EMI-GUY" -- Joe Leikhim K4SAT "The RFI-EMI-GUY" The Lost Deep Thoughts By: Jack Handey Before a mad scientist goes mad, there's probably a time when he's only partially mad. And this is the time when he's going to throw his best parties. |
#75
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![]() Gimme a stinkin' break! It's all that crap - music and movies - that's taking up all your space. Get rid of them! Or put them on CDs or DVDs. What about convenience Watson? I really *like* having everything online and centrally accessible, instead of having to dig for it. Hey I can even pull my stuff up at work and at other peoples homes. That's really nice one-stop shopping! Plus if my house burns down or I get robbed, then I can just restore a backup. I'm actually serious. It's not that I'm just trying to get a rise out of you.... Stepan |
#76
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["Followup-To:" header set to sci.electronics.design.]
On 23 Apr 2005 09:01:48 -0700, Winfield Hill -edu wrote in Msg. Naturally I disagree: Owners of hardware should be able to get the service manuals for their purchased equipment. Some sellers want to keep the repair profits for themselves, but in my opinion this is unwise. OK, we'll leave that point. When shopping for expensive lab equipment for my employer I've always made the purchase dependent on the vendor's willingness to supply full schematics. Not only for repair, but also for modifications that are sometimes necessary for research use. Some of our best STM data aquisition systems were purchased from a company that was very hard-ass about releasing the schematics (a British company named "WA", later aquired by Oxford Instruments). If it weren't for the schematics that we forced them to turn over those systems would now be useless. Ironically the company went out of business, whereas another one in the same market that always ships equipment with full schematics (Omicron) is still doing fine. --Daniel |
#77
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["Followup-To:" header set to sci.electronics.design.]
On Sat, 23 Apr 2005 16:53:08 -0500, John Fields wrote in Msg. I disagree. If the instrument maker supplied an instruction manual with the instrument when it was first sold, then, as far as I'm concerned, he's under no obligation to provide further _free_ copies of that documentation. As a courtesy, it might be nice for them to do so, but why should they _have_ to? I don't think they should _have_ to, but at least they should refrain from enforcing copyrights on the manuals (i.e., keeping customers from sharing copies). --- No, let's _not_ leave that point unexplored. _Why_ do you think it's unwise? --- Bad marketing. I at least am much more likely to purchase some new equipment from company X if I know that they are actively or passively supporting out-of-date equipment. Lynx Robotics, for example, is such a company: Although they have long ago shifted their line of business to something else, you can still download the old DOS software for their motion control equipment made in the 80's from their website. For free, without registration. In my eyes, as a potential customer, that makes them _very_ attractive. --Daniel |
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wrote:
On Fri, 22 Apr 2005 23:34:35 -0700, "Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote: One thought. Many of the test equipment (and manuals) were duplicated for the miltary. One off the top of my head is the AN/USM-81 which was the same as the Tek 541 'scope, IIRC. This may not be copyrighted, or may have some other way of getting around the copyright laws. And many schools, such as the military schools, published schematics to use for training. Jeepers, I wish those military manuals were better. I downloaded a few of them from https://www.logsa.army.mil/etms/online.htm and although they were usefull, they certainly were not up to par when compared to the real thing. Often unreadable schematics and missing vital info. I can't even access that website. A real pity. It appears I have misplaced the PDF file with the service manual of my HP3466A multi-meter. -- Reply to nico@nctdevpuntnl (punt=.) Bedrijven en winkels vindt U op www.adresboekje.nl |
#79
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https://www.logsa.army.mil/etms/online.htm
I can't even access that website. The military is screening IP addresses, trying to match them to geographic locations, and blocking access from outside the US. The screening isn't perfect, BTW. Sometimes real USAians cannot get to it, sometimes foreigners can... Tim. |
#80
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I read in sci.electronics.design that Nico Coesel
wrote (in ) about 'Copyright on HP service manuals', on Sun, 24 Apr 2005: I can't even access that website. Not accessible form outside the US of A, I believe. A real pity. It appears I have misplaced the PDF file with the service manual of my HP3466A multi-meter. Hint! -- Regards, John Woodgate, OOO - Own Opinions Only. There are two sides to every question, except 'What is a Moebius strip?' http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk |
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