Keyboard Shortcuts
ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
ctrl + shift + f :
Find
ctrl + / :
Quick actions
esc to dismiss
Likes
- HP-Agilent-Keysight-Equipment
- Messages
Search
|
FPGA/CPLD Kits
microwaveengineer1968
I have found a few FPGA kits that i used on previous projects, all of
them are working and in good condition, the reatail price is somewhere from 199 to 499 i am asking $50ea OBO ! maybe someone can get some good use out of them ! Here is what i got: Altera Cyclone3 based NIOS Board (genuine Altera) Altera MAX2 Kit in box w cables Spartan3E kit w accesories in Box contact me at microwaveengineer1968@... if you want one |
|
Re: Commercial interest ?
lothar baier
the old saying - if the shoe fits wear it comes to mind :) but i wasnt actually aiming at you
Well, i dont have any dogs in this race either - i just recently got a 8753B which thank god has a good CRT, i have a 8757A with a bad CRT that i aquired specifically for this project, i dont own a 8640B either, a friend of mine volunteered one for the cause, what will happen to the unit after the work is done is not clear, maybe i will fix it up with a set of stailess steel "live forever" gears and create a replacement for the output amp and keep it around the lab. I take on a project not because i want to make money or to get anything out of it but because im trying to help others and because i see a challenge in it thats all there are still quite a few people left who think this way as well - thank god ! Chuck Harris <cfharris@...> wrote: Ok Lothar, that one was aimed directly at me, so I must respond! I do lots of things without expectation of pay. I have coached recreational soccer for many years. I help out with one of the local youth orchestras. I am always available for school field trips. I chaperon school events. I give electronics demonstrations at my local schools. I make buttons that the schools give out as gifts and rewards. I am involved in local zoning and planning issues that affect my community.... I do construction, repair, and remodeling work for friends and family... The list goes on and on. I spend rather a lot of time not getting paid! What I won't do, is go out and spend hundreds or thousands of dollars, to buy instruments that I don't need or particularly want, so I can give away my experience to help others. I need something in the project to make it worthwhile for me to get involved. A couple of examples which seem to have gotten a burr under your saddle: 1) you came up with the idea to make an LCD vector display to replace the display trays in a couple of HP scalar network analyzers. I offered to help you by writing all of the programs necessary to make your idea work... even though I don't own any examples of the network analyzer. To make it possible for me to do this work I said that I required someone to *give* me one of these network analyzers (~ $2000) so I would have a platform on which to test my software. That is a very cheap rate for a professional programmer (which I am) to do your job. Instead, you went out and hired some consultant, who was willing to work for an hourly rate... A rate which certainly would have ended up in costing you many times more than my bid! 2) 8640B's have been breaking delrin gears since they were introduced 40 years ago. I have been fixing these gears for much of that time. I long ago gave up on 8640B's and moved on to synthesized signal generators. But, in answer to the cry for help with broken gears, I posted several notes on repair methods I had successfully used, and offered to make available gear sets *at cost* if someone would *give* me an 8640B 1/2/3 to use for measuring and testing the gears (and as a minor compensation for my effort). Known working 8640B 1/2/3's are available regularly on eBay for BIN prices in the $200 to $400 range (and they rarely sell at those prices). I did not require a working 8640B. I figured this would be a nice way of getting the job done, without me having to go out and buy an 8640B (which I don't need) so I could measure it and give away the gears at cost. I am a self employed Electrical Engineering Consultant. That is my *only* source of income. That has been my only source of income for the last 25 years! Electronics is not a hobby for me. It is my livelihood. I am not going to tell you I don't enjoy messing with this old stuff. I do. That is why I hang around these boards, and why I use this old test gear in my consultancy. That is also why I offer to give away my professional expertise, and only source of income, to help others with these projects. But for me to do this, I need to keep my real boss happy, and that will only happen if I don't *lose* money on these helpful ventures. But, it seems to piss you off enough that you feel the need to lecture me on being generous, helping society, etc... Perhaps I should abandon these helpful efforts and go back to working only with my professional customers? -Chuck Harris microwaveengineer1968 wrote: One thing that comes up more and more often from people on this --------------------------------- Get easy, one-click access to your favorites. Make Yahoo! your homepage. |
|
Re: Commercial interest ?
Ok Lothar, that one was aimed directly at me, so I must respond!
toggle quoted message
Show quoted text
I do lots of things without expectation of pay. I have coached recreational soccer for many years. I help out with one of the local youth orchestras. I am always available for school field trips. I chaperon school events. I give electronics demonstrations at my local schools. I make buttons that the schools give out as gifts and rewards. I am involved in local zoning and planning issues that affect my community.... I do construction, repair, and remodeling work for friends and family... The list goes on and on. I spend rather a lot of time not getting paid! What I won't do, is go out and spend hundreds or thousands of dollars, to buy instruments that I don't need or particularly want, so I can give away my experience to help others. I need something in the project to make it worthwhile for me to get involved. A couple of examples which seem to have gotten a burr under your saddle: 1) you came up with the idea to make an LCD vector display to replace the display trays in a couple of HP scalar network analyzers. I offered to help you by writing all of the programs necessary to make your idea work... even though I don't own any examples of the network analyzer. To make it possible for me to do this work I said that I required someone to *give* me one of these network analyzers (~ $2000) so I would have a platform on which to test my software. That is a very cheap rate for a professional programmer (which I am) to do your job. Instead, you went out and hired some consultant, who was willing to work for an hourly rate... A rate which certainly would have ended up in costing you many times more than my bid! 2) 8640B's have been breaking delrin gears since they were introduced 40 years ago. I have been fixing these gears for much of that time. I long ago gave up on 8640B's and moved on to synthesized signal generators. But, in answer to the cry for help with broken gears, I posted several notes on repair methods I had successfully used, and offered to make available gear sets *at cost* if someone would *give* me an 8640B 1/2/3 to use for measuring and testing the gears (and as a minor compensation for my effort). Known working 8640B 1/2/3's are available regularly on eBay for BIN prices in the $200 to $400 range (and they rarely sell at those prices). I did not require a working 8640B. I figured this would be a nice way of getting the job done, without me having to go out and buy an 8640B (which I don't need) so I could measure it and give away the gears at cost. I am a self employed Electrical Engineering Consultant. That is my *only* source of income. That has been my only source of income for the last 25 years! Electronics is not a hobby for me. It is my livelihood. I am not going to tell you I don't enjoy messing with this old stuff. I do. That is why I hang around these boards, and why I use this old test gear in my consultancy. That is also why I offer to give away my professional expertise, and only source of income, to help others with these projects. But for me to do this, I need to keep my real boss happy, and that will only happen if I don't *lose* money on these helpful ventures. But, it seems to piss you off enough that you feel the need to lecture me on being generous, helping society, etc... Perhaps I should abandon these helpful efforts and go back to working only with my professional customers? -Chuck Harris microwaveengineer1968 wrote: One thing that comes up more and more often from people on this newsgroup is the .... im not doing anything unlessi get paid for it ! dont get me wrong i like money as much as anyone else and im not this well off that i dont need any income but lets reflect and think about it for a second.... |
|
Re: Commercial interest ?
lothar baier
Financial interest makes sense if you start a company and want to make money, if i would have the intension to start a business selling replacements for obsolete parts than for sure i would go broke after not even a year !
If you do something commercially you have to calculate your costs and then make a weight of what price the market supports, you have to put everything in the equation to make a profit which you have to make in order to make ends meet ! Things are not so if you just do something on the side for fun, normally you have a job that pays the bills, if you have a shop in the backyard or house than normally its paid for and the power and water bill are gonna get paid anyway, you dont have any employees and normally you already bought the machines and tools because you wanted to have them for a hobby, you also dont have the latest and greatest CNC controlled machines and a $100000 loan on your back which you needed to buy them ! Time is not an issue in a hobby shop , whether it takes you 10minutes to make a gear or 1hr, who cares you are not paying anyone to do it ! As long as you are doing it for fun its ok, lets see what else would i do if i wouldnt dabble around on machines or in my electronics lab ? probably sitting somewhere on a lake fishing or watching TV - if you want to put economics to it then you might not want to go fishing or watch tv either - how many $$$ you spend on fishing gear and licence ? then you sit around for hours on a lake to catch some fish that if you put economics to it you could have bought cheaper at a local market ! watching TV all you do is use electricity and spend a boatload on a new HDTV all without getting anything in return but entertainment - well entertainment for some people is to fix a old piece of equipment the main difference is that they are learning something as a side effect while the TV junkies only getting brain fried ! J Forster <jfor@...> wrote: True, within limits. There is a big difference between working on something with real upside potential and supporting something an insrument which is reaching the end of it's service life. The former makes financial sense, the latter does not. That does not mean it's not worth doing, but just not for financial reasons. I'm specifically thinking of the Tek 547 HV Transformer and the 8640 gears. Best, -John microwaveengineer1968 wrote: One thing that comes up more and more often from people on this --------------------------------- Never miss a thing. Make Yahoo your homepage. |
|
Re: Commercial interest ?
lothar baier
I used the stratix because i had a eval board for it on hand, for cost reasons i would not recommend this family ! Cyclone3 are pretty good and Lattice has low cost FPGAs with build in SERDES for high speed interface so i would go with one of those.
Who said that i have given up on the gears ? i havent , as a matter of fact one of my former motorola coworkers offered a 8640B with problems as a parts mule for just that purpose ! As soon as i finish painting and setting the machine up i will start on it swingbyte <swingbyte@...> wrote: I have read with some amusement and disappointment the responses you received from your offer to make gears for people. I personally thought it was a great offer and as soon as I need any gears I'll send you an email. Never look a gift horse in the mouth! After studying how a lot of rich people got rich I have discovered one of the answers. They do what they enjoy doing without thinking of getting rich. Entrepreneurs don't care about money as much as they care about what they're doing to make it. HP started two guys doing what they wanted to, Apple, Intel and most other super businesses all have that in common. Certainly lots of people do jobs they don't like but those that start from nothing usually make it doing something they like. The hard part is knowing WHAT you like to do!!! Once you discover that, you'll do it well and the rewards will come from being the best. Now after that little philosophy lesson ; I chose an 8565 over an 8569 because after watching ebay for several months, it seems that the extra cost ( >in $AU 1000) was not justified. I can do digitisation - its what I do for work and the ADCs available now are cheaper and faster and everything else better. What is important to me is the RF capability which is almost identical with option 100 on the 8565 - and outside my current home construction and design capabilities!! So for $1000 less I have an SA that does what I want rf-wise, I have already designed and built a USB digitiser that I can use with it - more capable than the 8569 HPIB. But I'd like to have it all self contained in the one box - so I will probably start to modify and hack the display section anyway. Lothar - Thanks for the tip on LCD screens -I will look into that. The Stratix chip is the one I was thinking of using. The reason I was looking at high speed ADCs was to implement the rosenfell system HP uses. Have fun! See you later Tim microwaveengineer1968 wrote:
--------------------------------- Be a better pen pal. Text or chat with friends inside Yahoo! Mail. See how. |
|
Re: HP8565 hacking/mods
J Forster
First off, I have no dog in this fight, but it seems to me used laptops, especially lower performance ones, are dirt cheap (>$100) these days. Why not a simple interface that uses the parallel or USB port and let the OS and laptop do
toggle quoted message
Show quoted text
everything else. I would stay away from surplus LCDs because a continuing supply is problematic. -John lothar baier wrote: there are several companies that sell surplus LCD for about $100 or less, earthlcd is one example, changing to LCD would also have the advantage that you get some additional function like printer interface and USB for no additonal cost ! |
|
Re: Commercial interest ?
J Forster
True, within limits. There is a big difference between working on
toggle quoted message
Show quoted text
something with real upside potential and supporting something an insrument which is reaching the end of it's service life. The former makes financial sense, the latter does not. That does not mean it's not worth doing, but just not for financial reasons. I'm specifically thinking of the Tek 547 HV Transformer and the 8640 gears. Best, -John microwaveengineer1968 wrote: One thing that comes up more and more often from people on this |
|
Re: Commercial interest ?
swingbyte
I have read with some amusement and disappointment the responses you received from your offer to make gears for people. I personally thought it was a great offer and as soon as I need any gears I'll send you an email. Never look a gift horse in the mouth!
toggle quoted message
Show quoted text
After studying how a lot of rich people got rich I have discovered one of the answers. They do what they enjoy doing without thinking of getting rich. Entrepreneurs don't care about money as much as they care about what they're doing to make it. HP started two guys doing what they wanted to, Apple, Intel and most other super businesses all have that in common. Certainly lots of people do jobs they don't like but those that start from nothing usually make it doing something they like. The hard part is knowing WHAT you like to do!!! Once you discover that, you'll do it well and the rewards will come from being the best. Now after that little philosophy lesson ; I chose an 8565 over an 8569 because after watching ebay for several months, it seems that the extra cost ( >in $AU 1000) was not justified. I can do digitisation - its what I do for work and the ADCs available now are cheaper and faster and everything else better. What is important to me is the RF capability which is almost identical with option 100 on the 8565 - and outside my current home construction and design capabilities!! So for $1000 less I have an SA that does what I want rf-wise, I have already designed and built a USB digitiser that I can use with it - more capable than the 8569 HPIB. But I'd like to have it all self contained in the one box - so I will probably start to modify and hack the display section anyway. Lothar - Thanks for the tip on LCD screens -I will look into that. The Stratix chip is the one I was thinking of using. The reason I was looking at high speed ADCs was to implement the rosenfell system HP uses. Have fun! See you later Tim microwaveengineer1968 wrote:
|
|
Re: HP8565 hacking/mods
swingbyte
HP must have been an amazing place to work in in the 1970s. It seems they did a lot of R&D in those years. I'm extremely grateful for their old service notes - more information and explanation than one sees these days. there's no great electronics industry in Australia - and from what I have read about HP and TEK it seems to be over in the USA as well. I have spent alot of time reading HP journals etc. I am always impressed with their work and I think I learnt more from them than some of my lectures at university. I still think all EEs should have to work as a tech for at least a couple of months.
toggle quoted message
Show quoted text
The 8566 yig controller is mighty impressive hybrid digital control/analogue signal system - something I would use as a starting point for anything I try to do. This is not intended to be a commercially viable solution - just buy a better more $$ SA if you want that - I was looking for the journey rather than the destination. At the same time - I'm not going to throw too much money into it - if I wanted to waste money I'd have a boat!! You have some very interesting points in your post (below) thanks. The 3-6 GHz sweet spot must have taken a bit of work to discover. Tim lothar baier wrote:
|
|
Re: HP8565 hacking/mods
lothar baier
there are several companies that sell surplus LCD for about $100 or less, earthlcd is one example, changing to LCD would also have the advantage that you get some additional function like printer interface and USB for no additonal cost !
Doing the whole thing is fairly easy since all you have to do is process XY Data, the propellor microcontroller from parallax is perfect for that and you can get A/D conveters with 2 channels and a few K samples very cheap as well. You can start with a Propellor eval board which has a VGA connector and a pc monitor and go from there, take a look at the datasheet ! Of course you can also go down the complicated route and use a FPGA to do the same functionality, i build a XY Storage display on a Stratix board years ago just for the heck of it and it was quite a experience. 8565A are fairly cheap but keep in mind that the basic RF Functionality in between the 65 and 69 is about the same but the 8569 has digital storage and plot capabilities. swingbyte <swingbyte@...> wrote: HP call the board that controls the storage tube persistence, erase etc the storage assembly. I have been thinking of replacing the tube with and LCD - but that would cost more than the SA!! Unless I can get a VGA LCD the right size for ~$400 the cost is prohibitive. The tube is fine, and there are many CRTs still floating around that could be swapped in if no persistence was required. I was planning for a minimal modification and swapping one assembly board with a new one seems good. Yes I can just stick the outputs into my DSO and I have an 8569 effectively and that's what I will do to start with - but then I don't see the trace for a long time so I may do something for that. I have used some LCD panels at work for MFD simulations - but cost isn't a problem there! More suggestions welcome. Tim lothar baier wrote:
--------------------------------- Never miss a thing. Make Yahoo your homepage. |
|
Re: HP8565 hacking/mods
swingbyte
HP call the board that controls the storage tube persistence, erase etc the storage assembly. I have been thinking of replacing the tube with and LCD - but that would cost more than the SA!! Unless I can get a VGA LCD the right size for ~$400 the cost is prohibitive. The tube is fine, and there are many CRTs still floating around that could be swapped in if no persistence was required. I was planning for a minimal modification and swapping one assembly board with a new one seems good. Yes I can just stick the outputs into my DSO and I have an 8569 effectively and that's what I will do to start with - but then I don't see the trace for a long time so I may do something for that.
toggle quoted message
Show quoted text
I have used some LCD panels at work for MFD simulations - but cost isn't a problem there! More suggestions welcome. Tim lothar baier wrote:
|
|
Commercial interest ?
microwaveengineer1968
One thing that comes up more and more often from people on this
newsgroup is the .... im not doing anything unlessi get paid for it ! dont get me wrong i like money as much as anyone else and im not this well off that i dont need any income but lets reflect and think about it for a second.... If many of the great inventors would have shown this attitude than we would be without a phone, light or electricity and the laws of basic electronics would never been written! Lets face it, many of the great inventors didnt start out because they wanted to make money, they were tinkerers who liked to dabble around and wanted to make things better, true in many cases wealth and large companies came out of the original invention but it was not the primary concern of the guy when he spend countless hours, days and month sometimes years in the lab going trough trial after trial facing the riddicule of friends family and sometimes even peers ! There are still many hams designing microwave circutry and publishing detailed instructions on how to build their creations in magazines for anyone to build without asking for any compensation. Lets take for example Michael Kuhne DB6NT of germany who pioneered many easy to build 10,24 and 47GHz designs, he did all the work in his spare time, published many instructions and articles in DUBUS and traveled from SHF convention to convention to promote his designs and to answer questions from newcomers on how to build and improve those designs, all on his own money without any commercial interest ! True sooner or later a company resulted out of it and today kuhne electronic is good in business but it was not the primary idea of michael when he started designing his stuff ! Sometimes we just need to step back and do things out of technical interest without asking the $ question first, after all the good book tells us that who seeks his rewards on this earth shall get their rewards here and not in heaven ! |
|
Re: HP8565 hacking/mods
Peter Gottlieb
I have a degree, but the truth be known I learned at least 95% of what I know by playing on the bench, taking things apart, modifying radio gear, building my own test gear when I was a kid, and then working my way up in jobs in engineering before I decided to go and get an actual degree. Yes, I spent a lot of time in libraries, and had a couple of uncles in engineering who answered questions, gave me books, and generally pointed me in the right direction. When you love something and are truly driven, it is amazing what you can do!!
toggle quoted message
Show quoted text
Peter John Miles wrote:
|
|
CRT Restoration and Testing, B&K 465 Available
Hello to all,
Lots of discussion about restoring CRTs lately. FYI, I have a BK 465 CRT tester/restorer available. Good conditon, with manuals and cabling. Never was able to sell it at the Hamvention, swap meets, ebay, QTH, etc. Not worth much, but let me know if anyone is interested. Regards, Jim ____________________________________________________________________________________ Get easy, one-click access to your favorites. Make Yahoo! your homepage. |
|
Re: HP8565 hacking/mods
lothar baier
Building a good YIG based synthesizer has its challenges i admitt, first problem is that usually YIGs are not as good in phasenoise to begin with, next thing is that you have to design your drivers carefully and use really low noise powersupplies and filtering, one issue is that with the tuning range of the YIG beein much wider than of a VCO noise and interference on the psu and tuning lines will take its toll on the phasenoise so even the driver and associated lines need to be shielded and filtered.
Next is the approach on how to reduce the Frequency, a frequency divider is nice however there are not too many out there covering 2-18GHz that offer low noise, another approach is to use a harmonic mixer to down convert the Signal to a lower IF range and then prescale and go to a PLL. Generally it never hurts to look at what HP did , study the design and learn from it, one thing about the 8566 is that it uses a 3-6GHz YIG and for some reason 3-6GHZ seems to be a sweet spot for low phasenoise, at least you get the idea if you look at datasheets, most low phasenoise YIGS are 3-6GHz, dont ask me why John Miles <jmiles@...> wrote: > Hi John, Yes I have seen that unit - I was pondering something moreKeep in mind that there's no benefit to digitizing post-detected trace signals (x and y) at rates beyond the bandwidth of the widest video filter, typically a few MHz at most. And if you digitize the final IF, the bandwidth may still be limited to a few MHz by other filters in the SA's signal chain. If you are that ambitious, I think the best approach -- meaning, the one that would benefit others the most, and require you to do the least original engineering work -- would be to launch a project using the USRP or other GNU Radio peripherals as a general-purpose spectrum analyzer back end. Keep it simple at first or you'll never get anywhere! Trust me on that... I figure I mightIt's definitely a good idea to spend time coming to grips with the limitations of what you have. The obvious specification deficiencies aren't always the ones that will end up limiting your measurements. I was interested in your hybrid 2GHz vco and possible use as a yigHeh... that will teach you all you (n)ever wanted to know about noise and stability. Building a clean YIG synthesizer is a challenging project. I still haven't managed to do as well as the old HP designs, even with much-newer opamps and other parts... which is one reason I chickened out when I realized I was faced with that sort of problem in my 8566 'redesign' project. It will have to wait until I can devote a lot more time to it. I just realised that we looked at using your pc sound system where IOh, you mean the sound system I'm supposed to be working on right now. Oh, yeah, THAT. :) -- john, KE5FX --------------------------------- Be a better sports nut! Let your teams follow you with Yahoo Mobile. Try it now. |
|
Re: HP8565 hacking/mods
lothar baier
Hmmm sounds kinda familiar, im going trough this cycle every few years, usually when im employed i packrat stuff especially microwave parts, machinery and test gear to build up my lab until my wife throws out divorce threats, then i lose my job and start selling stuff off left and right to make ends meet, usually when i reduced my stuff a bunch i find another job and the cycle starts again, its really easy to be a packrat when you are a design engineer especially for a large player, most distributors and manufacturers are very generous with free samples and tools, usually once a month you get a email with offers for some samples or a free development kit and usually i reply :) so stuff gathers up fast !
The last really useful thing was a PSOC kit from cypress, i just love those little mixed signal microcontrollers, they are very easy to programm, the C compiler is cheap and the devices are cheap and versatile not to mention they have devices with USB, the last project i did was a USB switch controller, well im still kinda working on the firmware for that :) John Miles <jmiles@...> wrote: Heh... I tend to go for a couple of years at a time without doing much electronics work at all, selling all my gear on eBay and going back to the real world to rebuild my finances. Eventually I feel compelled to return to the workbench, where I spend a lot of time and money answering questions that could, frankly, be better resolved for free in a library. I don't recommend this approach to others, especially those with families and other real-world responsibilities. :) -- john, KE5FX one problem i find is that the market for stuff like --------------------------------- Get easy, one-click access to your favorites. Make Yahoo! your homepage. |
|
Re: HP8565 hacking/mods
John Miles
Hmm, I see I left some room for that to be taken the wrong way. When I
toggle quoted message
Show quoted text
said, "Eventually I feel compelled to return to the workbench, where I spend a lot of time and money answering questions that could, frankly, be better resolved for free in a library," I was referring to MY OWN questions, not anyone else's. Meaning, if I had any sense, I'd spend a couple of years in an EE classroom rather than wandering the empirical path of Paracelsus, Ramanujan, and that nutcase down the street with the tinfoil on his windows. :) -- john, KE5FX -----Original Message----- |
|
Re: HP8565 hacking/mods
i have the same problem john
toggle quoted message
Show quoted text
deling with freeloaders that dont want to crank their heads or geet b their hands dirty maybe we should go on strike for them ----- Original Message -----
From: John Miles To: hp_agilent_equipment@... Sent: Saturday, November 17, 2007 3:47 PM Subject: RE: [hp_agilent_equipment] HP8565 hacking/mods Heh... I tend to go for a couple of years at a time without doing much electronics work at all, selling all my gear on eBay and going back to the real world to rebuild my finances. Eventually I feel compelled to return to the workbench, where I spend a lot of time and money answering questions that could, frankly, be better resolved for free in a library. I don't recommend this approach to others, especially those with families and other real-world responsibilities. :) -- john, KE5FX > one problem i find is that the market for stuff like > this is soo small that > it isnt worth my time. > i cant afford to spend alot of time on things that have > very little return > at oner time i had enough money to play for long > periods of time > that isnt the case any longer im not as fotunate as john miles. > ----- Original Message ----- > From: John Miles > To: hp_agilent_equipment@... > Sent: Saturday, November 17, 2007 3:16 PM > Subject: RE: [hp_agilent_equipment] HP8565 hacking/mods > > > > Hi John, > > Yes I have seen that unit - I was pondering something more > > sophisticated. Along the lines of 100MSa/s to FPGA to digitize x,y or > > if and an embedded web-server to get the data out. > > |
|
Re: HP8565 hacking/mods
John Miles
Heh... I tend to go for a couple of years at a time without doing much
toggle quoted message
Show quoted text
electronics work at all, selling all my gear on eBay and going back to the real world to rebuild my finances. Eventually I feel compelled to return to the workbench, where I spend a lot of time and money answering questions that could, frankly, be better resolved for free in a library. I don't recommend this approach to others, especially those with families and other real-world responsibilities. :) -- john, KE5FX one problem i find is that the market for stuff like |
to navigate to use esc to dismiss