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hardware is the best ware also get a cheap used analog oscilloscope and learn to fix it and how it works its a p cool project and in the end you get a p good scope for <50$
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Nov 25, 2014 23:03
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for doodles and notes i like rhodias dotpads like these i like dotted paper so ymmv
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Dec 4, 2014 20:25
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it that jim williams's desktop^
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Dec 10, 2014 03:07
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the problem also is that a lil bitty glass fuse is probably gonna arc even after it has broken with hvdc, causing a loving huge short which can lead to a plasma ball directly to your face
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Dec 19, 2014 21:06
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My Tek 465B is acting lately and I don't know if i A: Fix it (but i dont have another good scope to do it) B: Buy another ("refurbished") one C: Buy an "ok" one and make a good one out of the two D: Get a Tek 7704a and two dual-trace amps with a time base and a delayed time base for xmas 
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Dec 19, 2014 22:05
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Btw didnt the new Rigol scopes have faulty AC trigger coupling? Maybe its fixed by now though (or you don't need it)
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Dec 19, 2014 22:07
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Sagebrush posted:so can i get ceramic fuses of the same rating to replace the glass ones in my multimeter or are they necessarily different sizes? you could do that but usually a "safe" meter is more than that. Like they will be designed in a way that there is no other possible arc-point in the build (between connectors and what not). also most of them will have blast proofing around the fuse and the connectors
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Dec 19, 2014 22:09
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Jonny 290 posted:thats it i'm buying a bunch of test gear and a parts stock and if mrs doesn't like it she can leave  
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Dec 19, 2014 22:11
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if you need >70MHz it's that you're not working on audio circuits or old computers and that's the problem
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Dec 19, 2014 22:22
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yeah well in my hobbyist mind lol if your scope isnt analog otherwise i have to agree at what you said
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Dec 19, 2014 22:30
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Tek 24xx series are v nice scope imo some of the best 4 channels scope of all time is that some P11 phosphor? (option 78 i think)
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Dec 24, 2014 02:16
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Mr. Despair posted:I have no idea to be honest, I'll have to check next time I'm underground. I just know it's a 2440, looks just like this guy's http://www.jvgavila.com/tek2440.htm nonetheless its a v good scope I was asking about the p11 (blue) phosphor because that's a cool option and your trace looks bluer than the one you linked (which is the standard p31, greenish phosphor) 290: release the megapost
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Dec 24, 2014 17:59
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for reference heres a 7904a mainframe with the P11 phosphor and heres a 7904a with the standard phosphor 
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Dec 24, 2014 19:46
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The quality's not good and it's 2 hours but you should all watch this and then buy an analog oscilloscope https://www.youtube.com/watch?v=8ZKMrzTGxLQ
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Dec 24, 2014 21:24
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If you guys buy a cheap chinese scopes (Rigol DS1054Z for instance, honestly thats quite a good scope for the price), google around and you might find some keygens to upgrade your scopes for free like you can make your 400$ 50 MHz DS1054Z into a 830$ 100 MHz DS1104Z for free. because they all use the same board.
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Dec 24, 2014 21:31
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Mido posted:i have a rigol in this series :0 RIGLOL be warned that while you can "flash back" to your old software using a PC, i think you cant change back your model number (100MHz -> 50 MHz) thus voiding your warranty. So if you care about your warranty dont upgrade your frequency
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Dec 24, 2014 21:32
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10 MHz on a breadboard is possible as long as you keep in mind to build everything as compact as possible
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Dec 26, 2014 06:52
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just bought a Fluke 115, its not an 87V but it's pretty nice. would have been nice to have a mA scale though, but it's good enough
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Dec 27, 2014 23:12
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crosspostingZeether posted:Some guy got Quake running on an oscilloscope: http://www.lofibucket.com/articles/oscilloscope_quake.html
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Dec 28, 2014 21:27
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welp the guy that i bought my fluke 115 from lost it so he refunded me just stepped up to a fluke 179, p hyped
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Dec 29, 2014 08:49
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whats a good cheap (<200$?) function generator? mostly need it for audio (aka low as f) frequencies and to calibrate 100 MHz analog oscilloscope (meh) not afraid to buy used or analog i was leaning toward an old Wavetek 182a (4MHz) but i havent given it more than 10 minutes
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Dec 30, 2014 08:05
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Mido posted:an arduino please proceed i must have a spare uno somewhere 
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Dec 30, 2014 08:19
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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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yeah ok but wheres the surplus megapost?
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Dec 30, 2014 19:33
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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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i hope im not gonna receive a fruke with worms inside
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Jan 1, 2015 02:47
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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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imo the best mso money can buy
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Jan 15, 2015 00:02
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if theyre not used to the currency and they're a middle man that only notify a warehouse "this item is paid ship it" it could happen I got a quick refund too
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Jan 19, 2015 22:33
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| # ¿ Apr 29, 2024 14:15 |
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yeah there's a guy that ordered like 30 of them anyway i shared it because considering ebays customer protection it was pretty risk free and you'd kick yourself if the listing happened to be a gently caress up
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Jan 19, 2015 23:10
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