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I make quantum cascade lasers
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# ¿ Nov 26, 2014 02:27 |
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# ¿ May 4, 2024 15:05 |
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oh hello are we talking about III-Arsenides??? GaInAs is funny but most people use InGaAs.
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# ¿ Dec 20, 2014 22:55 |
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Bloody posted:Are they meaningfully different? Idk poo poo about chemistry or detailed semiconductor physics I just like saying gay in rear end more than in gas They are exactly the same thing written different ways. It's somewhat important to come to a consensus though because when you don't, literature search can be a real pain in the rear end. Unfortunately, that is essentially what happened. I'm working on a quaternary material so I have to search for a bunch of combinations. At least everyone agrees to put the group Vs at the end.
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# ¿ Dec 22, 2014 15:36 |
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a thread about using oscilloscopes: apply it to your nipples
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# ¿ Dec 23, 2014 00:15 |
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scrub-tier voltmeters/multimeters are great. I like having some beaters around. I have a really nice Fluke that I love but it's nice having some cheapos you can abuse without a care.
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# ¿ Dec 25, 2014 01:51 |
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can't wait to get my Fruke
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# ¿ Jan 1, 2015 02:35 |
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Sweevo posted:the $12 ebay "fluke" listing got closed and the seller banned. tons of people on other forums who were all "yeah it's probably a scam, but a $12 fluke? i'd be a fool not to buy 20 of them!" are suddenly wondering if they'll get their money back ebay and paypal have strong guarantees
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# ¿ Jan 1, 2015 23:19 |
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maniacdevnull posted:frukegate update: What? I got my money back a couple of hours after the account was deleted. Sweevo posted:anyone who thought they were actually going to get a real fluke for $13 was an idiot I think you already made this joke, but I don't remember anyone ordering ten of them. Anyways, there are pricing mistakes or legit clearances all the time on the internet that people score great deals with. With ebay there was literally zero risk to try it, so why not?
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# ¿ Jan 19, 2015 22:47 |
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Bloody posted:those are some expensive caps what are they CDE Film Capacitors can't you read???
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# ¿ Feb 10, 2015 18:57 |
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Sedra/Smith was fine
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# ¿ Feb 16, 2015 23:17 |
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If you have 8 bi-color (red/green) LEDs (and assume that yellow is off-limits because it's a cheap piece of poo poo from China and green is weaker than red so red+green=red) and you need to indicate a percentage change from, say, -3% to +3%, where -1%-+1% is the most common swing (think stock market) how would you do so?
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# ¿ Mar 7, 2015 20:08 |
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Bloody posted:carefully thank u sir
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# ¿ Mar 7, 2015 20:17 |
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Bloody posted:i would arrange them in a bar like thus that is way too coarse imo. I want it to be kinda like logarithmic so that everyday swings are noticeable e: dunno if I can get yellow working. there is a resistor network I could potentially replace with some more sensible values but I am not sure that will happen e: this is what I'm working with http://www.dx.com/p/8x-digital-tube-8x-key-8x-double-color-led-module-81873 sleepy gary fucked around with this message at 20:28 on Mar 7, 2015 |
# ¿ Mar 7, 2015 20:23 |
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Bloody posted:project +/- 3.0 to +/- 255, display binary value in green > 0 in red <0 I have been avoiding this idea because the target audience won't understand it fully but I think it makes sense because even if you can't convert the binary back to decimal it still makes a fairly intuitive display edit: actually it doesn't ugh.
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# ¿ Mar 7, 2015 20:37 |
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eschaton posted:is this for bitcoins? how dare you
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# ¿ Mar 8, 2015 06:53 |
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I decided on 0.1 0.25 0.33 0.5 0.75 1 2 3 because its very human readable that way
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# ¿ Mar 8, 2015 20:35 |
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btw I think I raped my rpi gpio with 5v a bunch of times on accident but it liked it so no crime was committed
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# ¿ Mar 8, 2015 20:39 |
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get over yourselves
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# ¿ Mar 13, 2015 19:08 |
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never!
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# ¿ Mar 13, 2015 19:09 |
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guys please don't use the word "lovely" with respect to anything that isn't literally feces also I'm super offended by being called terrible this is a safe space and only good words can be used here thanks in advance
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# ¿ Mar 13, 2015 19:17 |
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yes you're right sorry I didn't mean to promote a hostile environment to raspberry pis
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# ¿ Mar 13, 2015 19:34 |
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I don't know how you think you can judge who I am because I said that I raped an electrical interface on a small computer. I think you have a lovely attitude. But, in all honesty, I'm sorry for the derail (not for what I said). I didn't realize this was that kind of a thread, so I'll see myself out. Blotto Skorzany posted:raped idiot and this is somehow cool with you heroes, lol
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# ¿ Mar 13, 2015 20:31 |
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# ¿ May 4, 2024 15:05 |
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I really do apologize, but put it in sh/sc if you don't want people to gently caress around. I don't think yospos should be too serious. Sorry, everyone.
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# ¿ Mar 13, 2015 21:50 |