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JewKiller 3000 posted:hey fuckers my cool dad has a basement full of 70s-80s test equipment, mostly hp stuff he repaired himself, plus some newer things. i hardly know what any of it does but i see the posts in this thread all "i could use an XXXXX" and i'm like, oh yeah we got one of those. and no you can't have it. yeah ok but post pictures im a sucker for old hp test gear
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Dec 30, 2014 08:24
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man i just flew back home i should have taken some pics. it's like a corner full of buttons, i can't even count how many buttons. and the towers of equipment get taller every year
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Dec 30, 2014 08:26
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Mido posted:generate wave forms, push them onto the DAC, pray the DAC characteristics aren't total poo poo just use filtering caps. filtering caps can fix anything
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Dec 30, 2014 14:55
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i still have this loving busted vacuum tube oscilloscope that i have no hope of restoring. gently caress http://richardsears.wordpress.com/2011/07/01/tektronics-316/
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Dec 30, 2014 16:24
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JewKiller 3000 posted:hey fuckers my cool dad has a basement full of 70s-80s test equipment, mostly hp stuff he repaired himself, plus some newer things. i hardly know what any of it does but i see the posts in this thread all "i could use an XXXXX" and i'm like, oh yeah we got one of those. and no you can't have it. just lol if your in this hobby without a work or school lab to go into and use hundreds of thousands to millions of dollars of equipment whenever you want
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Dec 30, 2014 16:59
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Mido posted:generate wave forms, push them onto the DAC, pray the DAC characteristics aren't total poo poo depending on what you need this is more than sufficient
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Dec 30, 2014 17:28
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doing actual bit janitoring today, recording and decoding i2c transactions 
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Dec 30, 2014 18:45
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that was a pretty lovely post lmfao
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Dec 30, 2014 18:46
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yeah ok but wheres the surplus megapost?
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Dec 30, 2014 19:33
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hobbesmaster posted:doing actual bit janitoring today, recording and decoding i2c transactions
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Dec 30, 2014 21:33
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help me yospos i have a cool as balls tektronix analogue scope from like 1980 i pulled out of a skip a few years back in storage at my dad's place as far as i know it just needs a new fuse and now i want a cool excuse to haul it across national borders to my new place my electronics work goes as far as dicking around with an arduino a few times so I don't have the highest hopes for being able to justify this.
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Dec 31, 2014 00:34
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oscilloscopes are hands-down the most useful tool for debugging/testing/diagnosing any circuit
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Dec 31, 2014 00:41
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eh, I guess logic analyzers are also oscilloscopes
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Dec 31, 2014 00:48
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can (average) logic analyzers look at things other than square waves at standard logic levels, though?
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Dec 31, 2014 01:08
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the $100 one I'm using has an analog channel, its more expensive cousins have the voltage waveforms available for all channels
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Dec 31, 2014 04:53
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i had a $10,000 Agilent MSO on my desk when I was a grad student and now I have some $300 computer-driven piece of poo poo that doesn't work. gently caress whoever recommended bitscopes to me and made me look like a god drat money wasting idiot.
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Dec 31, 2014 16:43
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$300? you can buy a real tektronix for $500
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Dec 31, 2014 16:49
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Usagi-Sauce posted:help me yospos i have a cool as balls tektronix analogue scope from like 1980 i pulled out of a skip a few years back in storage at my dad's place hook it up to a microphone and see what your voice looks like 
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Dec 31, 2014 16:59
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logic analyzers and scopes each have their own distinct uses unless you get the really really expensive ones that have both a) not poo poo analogue capabilities and b) a whole shitload of channels for a lot of stuff, a <$1000 tektronix and a <$100 saleae are pretty much all you need. logic analyzer for interchip comms and timing analysis so you know when your code is hosed up, scope for waveform analysis so you know when your electronics are hosed up. and then if you want to monitor your power usage in microamps during five different sleep modes, then, then you need big daddy scope (and current clamp) (am i the only one who gets a little boner at the sight of the words 'current clamp')
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Dec 31, 2014 17:27
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i prefer diff probes and low-ohm resistors because current clamps tend to suck rear end for milli and microamp measurements
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Dec 31, 2014 17:31
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2015 is the year i stop being a whiny bitch and save my pennies and get a scope and signal gen and a bunch of parts and we build poo poo. have not forgotten about surplus post i have it drafted, there are a couple awesome shops i cant remember the name of yet tho
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Dec 31, 2014 18:36
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i have a Tek TLA5204 (136 channel absurdly fast logic analyzer) i got when work threw it out because we needed something beefier i also have no probes for it and nothing to use it for. i would much rather have a saleae but selling one of these things is impossible
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Dec 31, 2014 18:46
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where do you even get probes for something like that? e: have you considered "donating" it for a tax write off? Tin Gang fucked around with this message at 19:53 on Dec 31, 2014 |
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Dec 31, 2014 19:49
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Phobeste posted:logic analyzers and scopes each have their own distinct uses unless you get the really really expensive ones that have both a) not poo poo analogue capabilities and b) a whole shitload of channels get one that used to be really expensive 136 channels of love
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Dec 31, 2014 21:26
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Tin Gang posted:where do you even get probes for something like that? ebay actually i think it might use the same probe jack as the current ones? idk either way theyre super expensive Tin Gang posted:e: have you considered "donating" it for a tax write off? wife asked a tax dude she knows about that a while back, iirc the answer was that it would get us basically nothing. could be wrong tho, i dont know the dude's credentials and i know nothing about tax junk, i just fill in turbotax every year
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Dec 31, 2014 21:32
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Tin Gang posted:where do you even get probes for something like that? eBay has lots of people selling used test equipment, including Arcsech’s Tek TLA5204 ($10K!), and stuff like probes & pods too the latter seem to run $25-$100 or so for other logic analyzers, I don't know what the 5204 takes so I can't look up much in the way of details also lol windows-based test equipment
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Dec 31, 2014 21:37
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I run my test equipment through the world's most advanced operating system.
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Dec 31, 2014 21:39
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eschaton posted:eBay has lots of people selling used test equipment, including Arcsech’s Tek TLA5204 ($10K!), and stuff like probes & pods too i wish i could get $10k for the thing. the last one to sell on ebay was listed as $1200 obo and took an offer. the last one before that was listed at $550 and took an offer (although that one had a flaky power supply) probes (e: tek p6418) go for $75-$100
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Dec 31, 2014 21:53
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Jonny 290 posted:2015 is the year i stop being a whiny bitch and save my pennies and get a scope and signal gen and a bunch of parts and we build poo poo. i know, right? except i already have a bunch of parts for unfinished projects and need to sit my rear end down and do them
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Dec 31, 2014 22:03
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i need components, rf connectors and adapters out the rear end, breadboards, a fistful of microcontrollers, antenna supplies, woooo the year's first project is the 13.560 mhz beacon though. be nice to have a scope for that e: i should solar power it with a lil battery and find some rancher that'll let me put it up at 11k feet or something goofy
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Dec 31, 2014 22:06
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yo to all my yosbros, theres a chinese seller on ebay selling Fluke 17B+ for $13 shipped right now. it's a typo cause he usually sells them for $121.99. I don't know if its a scam but mine is "shipped" without a tracking number. even if he doesnt ship and he doesnt delliver i guess itll be pretty easy to get a refund from ebay/paypal so its pretty risk free to get a p good multimeter all this meter is missing is true rms, otherwise its a very good, and very safe, multimeter for its usual price range (~$100) the 17B+ even has backlight as opposed to the 17B
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Jan 1, 2015 01:47
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Olivil posted:yo to all my yosbros, im in on this scam, see u in hong kong prison m8
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Jan 1, 2015 02:12
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can't wait to get my Fruke
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Jan 1, 2015 02:35
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i hope im not gonna receive a fruke with worms inside
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Jan 1, 2015 02:47
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my current multi is the sparkfun knock off fluke that they got sued for if this works out i will have paid less for the real thing, 
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Jan 1, 2015 03:10
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welp that was quick, user kicked off ebay
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Jan 1, 2015 03:30
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maniacdevnull posted:my current multi is the sparkfun knock off fluke that they got sued for they didn't get sued, customs seized them, fluke was contacted and was rather confused as to why customs seized the because they are very obviously not flukes there is no way that is a real fluke, it's either straight up counterfeit or if from the real factory failed qa or wasn't made with real parts
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Jan 1, 2015 04:20
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hobbesmaster posted:they didn't get sued, customs seized them, fluke was contacted and was rather confused as to why customs seized the because they are very obviously not flukes apparently fluke trademarked yellow cases or some poo poo?
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Jan 1, 2015 05:12
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Base Emitter posted:apparently fluke trademarked yellow cases or some poo poo? its trade dress: http://en.wikipedia.org/wiki/Trade_dress i think apple used the same thing against samsung but idk for sure. anyway it was a case of customs thinking it violates their trade dress and if fluke had said "naw its cool" they would have lost intellectual property rights over it, which would have resulted in "fruke 117"s in identical looking cases being a-ok or something, like that idk
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Jan 1, 2015 05:26
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Base Emitter posted:apparently fluke trademarked yellow cases or some poo poo? the cases were red though which is what was ridiculous about it
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Jan 1, 2015 05:32
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