EEVblog #991 - Mailbag - Page 1
Forum section: electronics / general

author: EEVblog
author_rank: Unknown
timestamp: May 04, 2017, 11:57:47 pm
content: SPOLIERS:Infinity PV Organic flexible Solar Cells:https://infinitypv.com/Flexible Solar Chargerhttps://infinitypv.com/products/heli-onhttps://infinitypv.com/images/infinityPV_OPV_organic_solar_cells.pdfRaspberry Pi To DEO nano Converter:https://www.dsp-crowd.com/HP 48G Destructive Calculator TeardownDigilent Digital Discovery Logic Analyser & Protocol Generator:http://store.digilentinc.com/digital-discovery-portable-logic-analyzer-and-digital-pattern-generator/German Tool Reviews Channel:https://www.youtube.com/channel/UCaI2HaxNXooWo7BoDEA9xSwPhilips PM2718 multimeter teardownMicronta Digital Multimeter TeardownHakko Soldering iron Temperature Sensor TeardownAltium PCB RulerWanky Otatmo flashing LED bracelet thingyhttp://otatmo.com/

author: ataradov
author_rank: Super Contributor
timestamp: May 05, 2017, 02:42:01 am
content: Multimeter chip is probably angled to accommodate whatever soldering process they were using (wave soldering?). It looks like having it at an angle made it harder to route, not easier.

author: bktemp
author_rank: Super Contributor
timestamp: May 05, 2017, 06:25:14 am
content: My Philips PM2518X looks almost identical to the PM2718 one Dave got, only held together by some tape.The case is really brittle. Because of the heavy batteries it will shatter if you drop the multimeter.Except from that it is a really good DMM having a 100kHz true rms ac input.Note the reversed polarity diode tester connection: The common wire outputs the positive voltage when testing diodes!

author: prof
author_rank: Contributor
timestamp: May 05, 2017, 07:18:47 am
content: Sending a ton of German tools from Baltimore.But you really didn't know Knipex? Must be one of the best manufacturers for high-end tools in the world:verypricey but worth every penny. Wondering what vendor you're using...The wrench is called a monkey wrench in English I believe, here in Germany we call it what you would translate into "Frenchmen", no idea why...

author: prof
author_rank: Contributor
timestamp: May 05, 2017, 07:41:34 am
content: If you just want to easily generate some (haven't tested how fast it would go actually) SPI/I2C signals you can use a Teensy++ 2.0 board (or similar using an AT90USB646, AT90USB647, AT90USB1286, AT90USB1287) with this software programmed onto it:https://tty1.net/userial/index_en.html. When connected to USB that will present a serial device to which you can easily post ASCII sequences defining the signal you want to send, or use a terminal program to read out sensor data.I'm currently building a new board that does the same but with built-in level conversion and a few more gimmicks...

author: Groucho2005
author_rank: Regular Contributor
timestamp: May 05, 2017, 07:48:26 am
content: Quote from: prof on May 05, 2017, 07:18:47 amI have always known it as "Wasserpumpenzange" which loosely translates to "water pump wrench".Also:http://www.knipex.de/index.php?id=1216&L=0&page=group_detail&parentID=1368&groupID=1507

author: Barny
author_rank: Frequent Contributor
timestamp: May 05, 2017, 09:55:01 am
content: Quote from: Groucho2005 on May 05, 2017, 07:48:26 amI knew the small version Dave got under the name "Wasserpumpenzange" (water pump wrench).Its larger brother I knew under the name "Frenchmen".

author: GeorgeOfTheJungle
author_rank: Super Contributor
timestamp: May 05, 2017, 10:09:35 am
content: Quote from: prof on May 05, 2017, 07:18:47 amIn spanish that's a "pico de loro". A monkey wrench is another kind of wrench, a "grifa" in spanish.

author: GeorgeOfTheJungle
author_rank: Super Contributor
timestamp: May 05, 2017, 10:11:53 am
content: Why did you treat that poor philips so badly?

author: GeorgeOfTheJungle
author_rank: Super Contributor
timestamp: May 05, 2017, 10:27:22 am
content: What's with the ever increasing current off that PV? At that rate it may very well achieve overunity!

author: Fungus
author_rank: Super Contributor
timestamp: May 05, 2017, 11:57:58 am
content: Quote from: GeorgeOfTheJungle on May 05, 2017, 10:09:35 amAnd then there's the "llave inglesa".This debate could get looooong. Let's leave the final word to Wikipedia:https://en.wikipedia.org/wiki/Wrench

author: Groucho2005
author_rank: Regular Contributor
timestamp: May 05, 2017, 01:14:37 pm
content: Quote from: Fungus on May 05, 2017, 11:57:58 amMore specific, "Tongue-And-Groove pliers":https://en.wikipedia.org/wiki/Tongue-and-groove_pliers

author: Monkeh
author_rank: Super Contributor
timestamp: May 05, 2017, 07:18:43 pm
content: Quote from: Groucho2005 on May 05, 2017, 01:14:37 pmNut fuckers.

author: HKJ
author_rank: Super Contributor
timestamp: May 05, 2017, 07:19:16 pm
content: Quote from: Groucho2005 on May 05, 2017, 01:14:37 pmIt obvious has a lot of name, in our country we use:vandpumpetang: Water pump wrenchPolygrip tang: Multi grip pliers (It looks like this is the normal name in Sweden).The "Monkey wrench" has never caught on.I do not really like this type of pliers (I do use them), they are way to easy to get pinched in.

author: Twoflower
author_rank: Frequent Contributor
timestamp: May 05, 2017, 07:39:31 pm
content: Quote from: GeorgeOfTheJungle on May 05, 2017, 10:27:22 amThe lamp was probably a Compact fluorescent lamp. Depending on the circuit they increase the light intensity after some warm-up time. Some do this not linear: I have some that start at about 80% (guesstimation, not measured) and stay at this level for about a minute or two and then they increase to the 100% within about 10 seconds.

author: NottheDan
author_rank: Frequent Contributor
timestamp: May 05, 2017, 09:04:20 pm
content: The number on the chip in the Philips looks like OQ0067 to me, not 000067.

author: Groucho2005
author_rank: Regular Contributor
timestamp: May 06, 2017, 01:43:28 am
content: Quote from: Monkeh on May 05, 2017, 07:18:43 pmTrue dat.

author: josecamoessilva
author_rank: Regular Contributor
timestamp: May 06, 2017, 02:19:00 am
content: I was planning to read an improving book this evening, but now I have to watch all those German Tool Reviews videos.

author: Brumby
author_rank: Unknown
timestamp: May 06, 2017, 02:54:40 am
content: Quote from: josecamoessilva on May 06, 2017, 02:19:00 amWell, that's improving - isn't it?

author: josecamoessilva
author_rank: Regular Contributor
timestamp: May 06, 2017, 03:37:46 am
content: Well, will save some videos for tomorrow, and go read my improving book ("Behave" by Robert Sapolsky, came highly recommended).And Dave released 3 new videos while I was watching the tools ones. Book can't get a break.

author: jonovid
author_rank: Super Contributor
timestamp: May 06, 2017, 07:56:30 am
content: organic flexible solar cell phone charger may need upscaling IMO. as the design is brilliantbut the solar surface area looks too small . for fast emergency phone re-chargeing. if the multiple phones need charging in an emergency.if say flexible solar is designed to be the size of a folded umbrella when closed, & when it is open, the flexible solar size of a hammock with end bar & tie strings. one end around a tree other on the ground.HP 48G destructive calculator teardown is not necessarily the end of ittry some modding /repackaging of the calculator pcb and adding custom-made button switches in a new enclosure.have you seen modding video game console enclosures.new box cuttersDave have you considered a robot knife arm to help withopeningyour mail. Mailbag is a repetitive process, so put some of your engineering skills to work.add same automation to your job.you never know, the airport security industry, may just pay for a working robot prototype.all suggestions, tongue in cheek !Good show Dave

author: BMack
author_rank: Regular Contributor
timestamp: May 08, 2017, 12:09:32 am
content: Quote from: Groucho2005 on May 05, 2017, 01:14:37 pmNo one really calls those monkey wrenches or tongue and groove, everyone calls them Cobras(like they're named) the lower end model is the Alligator...Knipex does sell a tongue and groove plier, so otherwise that would be quite confusing.I'm surprised none of you got on Dave about the pronunciation of Knipex and Wiha.

author: Brumby
author_rank: Unknown
timestamp: May 08, 2017, 03:59:25 am
content: They tend to be called "Multi-grips" here in Australia..... and let's not get into Dave's pronunciation of things. I cringe sometimes - but that's just Dave.

author: Fungus
author_rank: Super Contributor
timestamp: May 08, 2017, 07:16:23 am
content: Quote from: BMack on May 08, 2017, 12:09:32 amNah, that's a lost cause.(and I bet Dave can come up with some Australian names that you can't pronounce)

author: SNGLinks
author_rank: Regular Contributor
timestamp: May 08, 2017, 10:40:22 am
content: In the 60s when I worked at a NASA ground station, the Americans called them channel locks.

author: nowlan
author_rank: Frequent Contributor
timestamp: May 08, 2017, 11:03:20 am
content: Quote from: jonovid on May 06, 2017, 07:56:30 amhttps://youtu.be/F6UxmpbSQGU?t=22Quote from: SNGLinks on May 08, 2017, 10:40:22 amChannel Lock is the USA brand.https://en.wikipedia.org/wiki/Channellock

author: Barny
author_rank: Frequent Contributor
timestamp: May 11, 2017, 07:10:17 am
content: After the SD-Card massage video, I wish the mailing-costs to Australia are lower.I would have sent him a decent set of self made German-style cross peen hammer.(0.5Kg, 1Kg, 5Kg, 10Kg and 25Kg )With the wimpy excuse of an hammer Dave used, he is gone to hurt himself.Is this one if this decorative hammers with multiple screwdriver in its handle?