EEVblog 1410 - Mailbag

hi welcome to everyone's favorite segment mailbag let's get into it thank you very much b butcher from derbyshire in the uk derbyshire derbyshire i don't know leave it in the comments hi to all my viewers in the old dark let's crack it open if you want to send stuff in po box 7949 norwest new south wales 2153 australia not austria thank you very much okay hang on oh it's taped all right for our protection we have an extensive note in nice big font so i can read it you know eyes aren't what they used to be i've been doing youtube too long anyway that's it well wow this is seriously powder this must have cost a bit to send from the old dart um you know it's like on the other side of the planet oh thank you very much for the bubble wrap can always reuse bubble wrap it's a lot of bubble wrap must be delicate i'm getting that we're close ah what is this thing i don't know you can see it i can't what is it let's have a look it's got a big whopping heatsink on the back some weird a sort of custom pin connector it's a dancon rt-403 one what 25 oh it's a um it's a cb transmitter cb another uhf rubbish um isn't it like or is it a uh i i don't know the uk like standards and stuff oh i'm made in holland one of my viewers in holland i know there's some did i pay let's read the note greetings from england the old art my parents recently bought an old riverboat in the nether regions uh which they plan to sail down france to the coast to cover 19 permitting of course you haven't got freedoms you know you're on a boat in the middle of nowhere but no you're not allowed to go anywhere great uh the boat's vintage transceiver radio ah it's a boat radio didn't work so the replacement new one i'll throw on the old one away you grabbed it for the mailbag thank you very much features some very early ics to select the channels fantastic uh the documentation not only lists all the radios components of schematics of course it adds schematics yeah they stopped supplying this decades ago anyway right to repair videos on eev blog two i've got an uh excellent some excellent videos over there from the recent australian right to repair summit so check that out and yes i agree as a society we really need to go back to being able to carry out basic repairs to all consumer goods to extend their useful life yes i agree and i've got my reasons over on my second channel so check it out so he did manage to get some magic smoke to escape um thank you very much ben ben butcher awesome two minute tear down could be a bit more than two minutes because it's gonna have lots of rfe goodness they don't make manuals like this anymore let's have a squeeze oh somebody's got some handwritten notes handbook ah trouble look at this so general description circuit description troubleshooting alignment all the diagrams everything you can possibly look at this look at this ah thing of beauty joy forever look at this for the different functional units the exciter modulation amplifier troubleshooting tips or voltage and frequency test points and staff alignment of the synthesizer the exciter the vhf driver ah and the schematics just beautiful look at this like it's not hard to release this sort of information you already have it at the design stage anyway so like ah man and a bomb as well fantastic like why can't we do this oh purchase oh look at this 1978 fantastic i can't read danish but i'm sure that says uh certificate of guarantee or something like that ah i have no idea what any of this says that looks pretty recent and is that an addendum no spelling alphabet oh okay so hands up if you use one of these bad boys look at this one what 25 watts oh swamp the airwaves fantastic these are very reminiscent of the knobs i have on my uh keithley old school keithley gear so very nice don't know what oh that's uh oh backlight okay that'd be a backlight for in there i would imagine and on the back there we go that's very special um obviously maybe that i don't know is that a marine standard thing leave it in the comments well it turns out there's no screws on this so it's just a couple of knobs on the side so oh oh there we go oh look at that look at that ah ah you can tune everything yep classic late 70s construction oh look at this dual bodge chip wow hang on wow that's something quite special actually um got a chip under there and then the soldered the socket on top of that chip wow that's a bobby dazzler look at that and then they've broken off a pin and taken that out as well haha nice work only a two minute tear down of course but we've got ourselves metal shield got a penetrator that goes through here you can see it's soldered down to the copper plane on the board in there and yes tons of slugs for adjustment no idea they're motorola jobbies it's at a 4044 got now saw some polly put the kettle on caps there and uh there's no there's no attack oh yeah no that's going to say there's no tag tents yes they are there you go blue not that orange rubbish we got ourselves a big ass power resistor up there um is that like a dummy load or something and on the top side here we got more of it oh i love the heatsink check out that the heatsink on the dip package have you ever seen one like that before wow there you go so is that like a tda or something tba oh okay don't know it offhand but uh yeah they've actually bolted on a heatsink sort of like a custom heatsink with a cutout for the chip and a bodge wire going to it nice check out the giant package though look at this they're enormous i don't even know what that package is uh called offhand it ain't none of that to 92 rubbish that's for sure but transistors as far as the eye can see there's actually only a couple of to92s in there got a cermit trimmer and yep just regular axial stuff and got some electrolytics up there some fraco fraco electrolytics uh west german oh hands up if you've seen those any fraco fanboys out there maybe anyway the only interesting thing in here is what on earth is that plcc package doing down in there that looks pretty modern doesn't it does that like some sort of like considering that yeah it looks like all the mods all the mod wires seem to be going off to this board because you know that's that mod wire going over to here so i would assume that that's some sort of like maybe even a like after-market um hack or something or they've just like taken an old design and they've modernized it with some decoder or something i don't know leave it in the comments you got any idea i've got some funky looking relays up there yeah big beasties so what are they switching i i don't like maybe switch in the load and there's the transmit stage there on the back of the heatsink and yeah the relays are on that board too so they're they're like yes switching in the big power resistor there and there's that mod board so if anyone's got any idea it's just it's certainly uh out of place technology wise everything's surface mounts so that's a good you know 10 years at least 10 15 years ahead of uh the rest of this there's the money shot for the rf aficionados ceramic package jobbies nice of course little uh chokes for the power and stuff like that so there you go so i assume that they'd have like a metal stud on the bottom of them to go through to the yep yep yep i can just say just see a big metal stud in there that goes through to the heatsink nice so that's a 25 watt rf transmitter so thank you very much ben for sending that one in and of course all the schematics yes i agree they don't make them like this anymore why not like how hard is it like if anyone wants to steal your design they're going to steal it like ah company's going to work out this eventually that there's like even if they just do it for a marketing gimmick like why not and our workbench of the week it comes from tony albus you may be familiar with the name because he has a youtube channel check it out only just a smidge under 2k subs come on let's get him up to 10k subs at least let's get him into the four or the five digits and um yeah lots of uh test equipmenty stuff so let's have a squeeze at his bench here this is um just what like he's got some off to the side here as well lots of rfe goodness and he has actually listed everything in here from left to right we have a tti um worth searching for tti stuff on ebay by the way because it's not a huge brand but tti can make some good stuff anyway there's a tti three gig frequency counter tf930 it's a marconi 2432a counter there why you need two counters you might want to you know if you're into your rfe stuff you might want to be you know you're measuring your output frequency you might want to measure your intermediate frequency at the same time then there's an old-school mokani marconi radio test set absolutely fantastic you can pick up lots of these radio communications for sitcoms receivers on ebay really cheaply and they often have like you know sweep sig gens in them and all sorts of stuff so well worth looking out for those sorts of things there's a two gig enritsu spectrum analyzer there old school stuff and of course he's a member of tea the test equipment anonymous on thread on the eev blog forum which i think is probably one of if not the biggest threads on the eevblog forum it's absolutely yeah if you want to uh discuss your test equipment problems then acquisition problems then that's the place to be on the interwebs and of course we've got sieglet scope couple of keithley old school dmms here one's one of those ones with the scanner cards in it got an 01 multimeter here for some extra digits old school weller there you go one of those fixed temperature job is curie point fixed temperature some old school power supply down here one of those um i've got one of these uh volt craft um that come under various names it's like you know 40 amps or something at 15 volts and more power supplies you can never have too many power supplies and um yep a desoldering station is that a hot air station i don't know the brand off hand there's more miscellaneous gear down here and that brings us to tanaa the miscellaneous gear um side of the bench which is all the yeah that's why he's a member of the test equipment anonymous forum section because yeah you tend to acquire these things on ebay probably got it like a job lot here don't know what that those are i'm not sure old school meters up the top here oh wow oh wow it's like the old school these slim form factors i've had a couple of um i've done a couple of videos on like old school uh meters and scopes i've got a scope with the little crt on it which is uh the old was that a tti or was that a sinclair can't remember old school sig gens and stuff um yeah i tend to acquire these things anyway if you've got a problem visit the test equipment anonymous i'll link it down below thanks tony this one comes from reading r-i-e-d-o-n thank you very much i did actually open this because it didn't have mail bag on it i get normal stuff sent here too you know they're from alambra in california um i don't want my californian viewers all right let's check it out so i realized that it was a male baggy item so i have not actually foam peanuts hang on foam peanut alert i'll check out the box in a sec but here it is we have probes fantastic that goes into a multimeter obviously and ta-da here it is i haven't seen it you opt it there's nothing in there geez it's got a okay it's got a bigger screen on it and it's got a switch a fuse and a bigger screen no buttons no nothing and on the back just a couple of um banana plugs and uh yeah iec mains you put none of that earth pin rubbish either check that out and a usb so i do believe it's a usb current meter it's a game changer it's a smart current sense the new kid on the block hi dave reading is a us manufacturer of resistors and shunts oh cool okay yeah i have heard the name before i don't think i've ever used them though close you'll find one of our new products the ssa 100 it's a unique combination of features that's available on digikey from 100 to 1 000 amps so okay we're up in the big leagues i'm kind of like a nano amp and micro amp kind of guy myself but yeah for those a big current aficionados this could be cool it's an amplified and reinforced isolated analog current sensor with 12.5 millivolts per amp output it has a ul approval all the requisite stuff 1500 volts isolation sensor needs a three to five volt supply set along with an arduino-based current sensor meter uh it uses a 24-bit a2c etc etc and it's available on the githubs thank you very much phil um ebbet who's the vice president of engineering at reading so yeah let's crack it open that's a uh that that looks like a 3d printed case it does i'll show you up close i swear it's it did i can see the layers this is an interesting case for this uh isolated differential analog current sensor look at this just pull those up there like that you are listed of course um and you just whoa look at that isn't that a neat bit of packaging you probably haven't seen before i like that and wow that's pretty beefy isn't it and this is the uh this is the mounting base for it so you need to screw that puppy on there and they even tell you what to talk up the nuts to nice they know what they're doing so maybe phil can tell us uh or give us photos of what's inside this thing unfortunately i can't because it's all potted there you go secret squirrel secret sauce in there there it is 12.5 millivolts per amp output gives you up to uh plus minus 2.5 amps uh devolts out at uh 200 amps so that's very nice so it'll go differential of course and it's fully isolated so uh like you could use it with almost practically anything really just need to supply from three to five point five volts that's nice you can now just run it from a regular like digital uh supply excellent i assume that's an off-the-shelf connector but i haven't i don't think i've seen that one before i'm not sure if it actually comes with this uh cable or not you'd have to have a squares but anyway this is the uh this is the runt of the litter this is the 100 amp joby ah they do go up to at least 500 i think but anyway look at that beautiful it's as rugged as a brick dunny unbelievable um that's fantastic i love that uh yeah obviously we've got power and um differential sensor output and that's it and these cables feel awesome quality i assume this is like an output cable so i don't know why it has to be that beefy but anyway um yeah these are all all the cabling everything's very dressed very professionally that looks 3d printed doesn't it but it almost looks too good to be 3d printed but it's got that ridgy rigid edge action happening yeah it's 3d printed because yeah obviously um this front panel bezel is 3d printed as well looks pretty neat actually they're obviously not designing these for production i would assume or maybe this is just like a you know i assume it's just like a low volume engineering um you know thing i don't even know if you can buy this uh receiver anyway looks like it's got an off-the-shelf uh touchscreen you know one of those smart uh screen boards that actually contain like all of the uh what is it a nextron um yeah it probably contains like all the uh smarts you know that does all the graphical user interface and and things like that there's plenty of those on the market nice but anyway um this is actually quite well done inside just got our main switch there's an arduino uno on there looks like they've custom designed their own board on top in there and i i kind of like it they've you know this is a nice uh way to produce a i like either a one-off or you know like a small volume uh run of like you know engineering uh demo prototypes or whatever you know if you've got you start whizbang startup company and you want to you know show off your new uh tech um to your investors then uh you know something like this that kind of looks like uh the business um that'd get the job done that's really quite nice although personally of course i would have just used like an off-the-shelf pack tech case or something you know 10 million uh cases of this sort of size and form factor on the market and then just um you know cut the front panel out so yeah i don't know but neat there we go there's a better look inside it all and that's neat of course this is how you uh power these things like you just like don't care about uh cost for something i look low volume runs like this so you just whack in something like this off the shelf uh power brick yeah off the shelf power bricks like that just really easy to integrate into a box like this and there you go you can down a custom shield on top of that geez that's a tiny little pin pitch what a little bastard that is there you go lt jobby anyway that's our measurement adc is it not yeah i think they tell us it's an ltc2499 24-bit adc even though i can't read that on my camcorder screen so yeah just design their own custom arduino interface and then that easily drives the lcd and that's a great sort of like you know low volume engineering solution amphenol connector porn look at this oh beautiful all right let's switch this bad boy on shall we oh look at that oh straight in beautiful none of that boot and rubbish smart shunt current meter why and it connects via the wi-fi's off hey enter password default 444. offset voltage oh yeah oh i guess we should be measuring the offset voltage with our meter volts per amp adc scalar nice digital filter mode oh that's exponential mean average number of averages five sweet look at that there you go one milliamp resolution on our 100 amp current shunt sweet and we can oh zero that out there we go nice big gigantic font like i said like is this a product that they sell i mean they're just selling their shots so i guess this is just like a demo thing for trade shows maybe i don't know if you ask him they'll probably sell you one let's try it out 9.997 and bang on to the least significant digit bit of a shame that it doesn't have any uh graph capability or anything like that it just networks over anyway this really doesn't have anything to do with the actual product which is the smart current shunt itself the ssa 100 and the higher value units and if you have a look here at the data sheet 0.1 percent uh nominal accuracy of this thing 300 kilohertz bandwidth it's 69 bucks at digikey they've got 472 in stock and so go for it and like 69 bucks might sound expensive for a current shot but it's not this is fully isolated accurate takes out all of the issues uh to do with like a remote uh current sensing and stuff like that and gives you a nice differential output you can feed into any ada isolated output you can feed into any um sensor system so yeah that's terrific so yeah in that regards it when you're building you know systems together like 69 bucks for a sensor that takes all the r d work out of you know you wouldn't build this into something that you're shipping in a million volume or something like that but for some you know industrial uh plant or something you know some big current system that you're sensing that or even something you're making in low volume yeah it's worth every cent so that's a very nice bit of kit thank you very much phil for sending that one in it's a current shunt but they're remarkably interesting well i think so anyway hi to all my viewers in deutschland in particular jan bath films but yeah i'm not going to be able to pronounce that anyway thank you very much uh let's crack this i don't have to crack it open somebody's already opened it this is like i i would not have done this i i would not have done this i swear i think somebody's had a looksie oh postcard check it out there's nothing written on back and that's in german on the back i don't know 252 meters i i don't know the bonzens lake river thing cool looks good dear dave i'm a long time fan of your channel i'm proud supporter i love fundamentals friday one of the first videos i watched was about the sea back effect oh yeah i think that was a pretty good video oh my goodness oh my goodness look at this look at this torch oh that's a it's mains it's it's a rechargeable is it a mains rechargeable torch here in australia another flashlight rubbish um it's clearly not working oh that's oh the bulb in there oh crusty hands up if you're still using a bulb torch like oh that's it oh we've got some audi audi catalog from germany you inspired me to build my own circus which eventually helped me change professionally i went from mechanical designer to power electronics project manager awesome yes i'm that guy real electronics engineers hate and part of the blame is on you thank you very much please say this early 90's soviet mains voltage rechargeable torch i guess the circuit could not be any simpler maybe you'd like to explain that the batteries have died long ago but the mechanicals still work and i really like the ergonomy the ergonomics um yeah it feels perfectly like you know weighted in that like nicely weighted in the hand and and the contours and grips are just i i like it too and you know thumb operation like that it's a bobby dazzler oh those ruskies look at this bobby dazzler from those ruskies ah beautiful ren renuk something like that but ah good old-fashioned bulb who misses the bulb who's got a who's still got a dolphin torch hands up just a single screw to get it apart they've got a lead in there presumably for charging we're in oh geez they don't spare no expense look at that um yeah that's got a is that a that's just one big cap this is supposed to be like a mains thing straight in they've got a mains a capacitor dropper have they 0.5 mike genuine a russian cap i'm sure not yet 91 8th week 91 uh wow that pcb oh wow krusty burger look at that that's like bakelite stuff um i they look like their diodes um the dots indicating the anode or the cathode hands up if you know that package because i don't think i've ever seen that package before anyway it's it's fused for our protection but yeah obviously um it's just got a capacitor divider and a series resistor and a couple of diodes and that's it and these are our crusty rechargeable batteries they're like niketa or something are they oh yeah look minus 0.26 whatever that means and what's the t people there sort of getting friendly with each other i don't know what the deal is there um 90 is that 92 it's the year perhaps but i assume that is a nicad like just three niked cells in this thing um if you've got any details i'll leave it in the comments down below but yeah they're a bit uh a bit crusty now aren't they so yeah it reminds me of the old uh joke whether or not it's uh true that the nasa spent you know millions of dollars developing a pen that worked in space and the russians well they used a pencil it's just yeah have you ever seen something so crude and simplistic was this sold in volume i know i do have quite a significant number of russian viewers uh please let us know if you ever had one of these was it like it was it for home use or was it like if you used in like i don't know some other like you know specifically used for some industry or something like that please let us know but thank you very much jan for sending that one in um there's not much to it is there oh goodness hang on did i say rusky those pesky russians have some bloody soviet union back then all the kitties in the audience are going uh what's the ussr back in the ussr you don't know how lucky you were boys back in the u.s second sucker of the serve from the old dart thank you very much uh jay newcomb um i did not open this i swear it came completely mangled like this with a spoiler alert a board hanging out like this is how it arrived we have a board well we have more than one board we have multiple boards and you know i like whoa big fan of proto boards you're on the eev blog you should always keep a bunch of proto boards in your kit of various types and that one looks like a bobby dazzler so i will take a closer look at that now down to 0.5 mil pin pitch and it's got uh yep and there's all the it's already got the goodness on it fantastic ah excellent there you go so i assume open this second number two open this second oh as in set this second not open this second not this second if you know what i mean anyway oh oh we got more of them oh i love prada boards ah huge fan there we go look at that another one beautiful that's all that's got all multiple different types oh fantastic he's going straight to the pool room ah these aren't just proto boards they're actually micro controller proto boards specifically although you could use them for other stuff as well but they're more specifically designed for micro controllers and you can read all of john's stuff here but it's got all the goodness required to get a micro controller up and running so let's take a squeeze at uh this main one here and check it out so starting in the middle we've got a point five millimeter uh pin pitch uh quad array here and of course uh they you stagger them like this so that you can get different um size chips in there you can get a smaller one or a slightly larger one or one bigger up to however many what is it um a hundred that's more than enough i mean if you've got a bigger micro controller like that and you you know probably not building it on a proto board you're probably like just doing like a custom a pcb or something and then surrounding that you've got some point one inch pitch uh stuff as well and 0.05 inch of pitch stuff as well they don't actually connect to anything they just start floating so you can you know like put in a little connector or something like that speaking of which if you go up in the corner here there's actually a jtag uh interface or you know an in-circuit serial programming uh patch that you can just sort of patch into this thing and then the all of the pins they actually break out into larger um 0.1 inch headers around the outside so you can you know connect all your ios and whatnot um you can even you know you could bridge them over to breadboards you could do whatever you want to do with them and there's some regulation stuff down here in the bottom corner so you can you know put in a 3.3 or whatever volt regulator and then if you didn't like your 0.5 millimeter pin pitch and we've got some other packages on the back side a point five millimeter uh jolly .65 millimeters and uh then just a like a little so um footprint as well and they look like they fan out to these ones over here like this so you'd have to follow the money on that but um yeah that's a really useful board and there's a 3.3 volt loop going right around the outside so you can actually it's got little bridge pins in here little solder bridge pins so you can actually connect 3.3 volts to any of your um i o pins any of the pins at all on your micro and presumably can you do the same for ground so it's almost like um fpga routing for your micro kind of sorter but yeah that is neat so he's got an example soldered on here and labeled so your micro controller goes here oh thank you is that one of the arms that you can't get these days on that could be worth like million dollars or something um have to desolder that put on ebay series termination pins of course you know this is not going to be useful for any sort of like high frequency work or something like that it's not controlled impedance it's only too late like there's no internal ground planes or anything uh like that but anyway um there's a regulator here it's got scope clips as well so you can put in like the little ground loops in there for your scope probe it's and as i said it's got a jtag interface down here and he's put a little led up there we have a diagrammatic example here so the micro controller pin there you go so you can look there's a cuttable pad like this and you can fit uh like a uh like is it an oh 603 or something package anyway you can fit that in there and then that goes off the proto area there's a solder bridge there which yep goes down to ground i thought so and then yep solder bridge or two solder bridges can take you over to three point three and uh and a point one inch header as well here i just a lot of flexibility in there that's great and he's put other practical examples how you can put a low-pass filter for example yes you could he's got a crystal on the backside here so you can connect a crystal and uh the caps as well over to the pins nice and you can strap the pins to ground and 3.3 volts and he's got exactly the same thing available in an so uh thing up to 24 pins uh different widths available very nice and yep it's got the same sort of flexible routing on the back and if that's not enough well there's one for almost every type of package you can imagine so you just buy this as a big panel as i said it's worth having one of these panels available in your uh junk bin just for doing like hashing together little prototypes and stuff like that so that is groovy so thank you very much john there is the link ebay.com sch sketch john newcomb thanks john thank you very much affable snake it's from affable snake of course it is in houston texas fantastic had all my viewers in houston never got to go to houston um we actually had a facility in houston um that did for a job and i never really got i never went there so yeah a bit disappointing what do we got we got a note and uh we've got a slim breadboard i have no idea what a slim breadboard indicator but i assume it's slim it goes on a breadboard and it indicates thank you andrea a whose affable snake i found myself in need an absolutely tiny lead bar graph indicator for breadboard use yes being there needed that without needing to deal with the added complexity of needing a resistor for every landing app or the outer space of an actual bar graph indicator yep yep yep and decide to make a product out of it knowing other people would probably want similar yes so he's included one as a fully assembled but also sells it as a kit a slim breadboard indicator another classic thing which should go into your kit look at this in into your breadboard kit like i've got a like a breadboard like a thing with all like breadboard accessories and stuff like that and there's our common over there and that just goes into the point one inch header ah too easy well worth having thank you very much affable snake i'm sure it's gonna work like i don't have to do that and there's our resistor network on the bottom and jeez that thing is top what pitch is that what a mongrel and we've got our one dollar delivered item from shenzhen you can just tell and well i can feel what this is so yeah thank you very much for the anonymous person of course who sent this in and it's a does it actually work does it she can't even get it out of the packet yeah doesn't work doesn't work it doesn't even come fitted oh you got to put like an lr-44 in there ah what a bummer get it i'm here all week oh that just feels so cheap i could like add a joke in there but oh i'll refrain it's as cheap as a two dollar ebay item um yeah oh no it did actually come with batteries it just had a little cover on the top ah nice all right it's still a cheap pile of garbage oh there we go there we go yeah yeah quality mailbag items don't say people don't deliver uh yeah i think i know what to do with the uh widely riser hang on i couldn't actually get the motor out but it's just going to have a countersunk on the end of it i pulled the end cap off but that's about all i could do i'm afraid need a good steel plate in the lab for widely rising stuff anyway here we go oh that's a tough one tough sob let's do it again wow hang on there we go ah now we're in yeah i think my block of wood had too much compliance in it anyway yeah there's our camera it doesn't spin anymore let's go figure um yeah it's just got a counterweight on there that just spins around and yeah well that's it it's a squishy motor now another one for the united states of america which um i is opened but i don't ever remember opening it anyway thank you very much i'm not sure the first name is it gim fifa i'm not i i'm not sure because it's really strangely but 13 years old and he watches my channel uh with his dad who is uh not with us anymore sorry to hear that i am very grateful for your youtube because i've been studying and practicing electronics for a couple of years now and i am older and when i'm older i want to be an electrical engineer like you fantastic you don't be like me but you know yeah electrical engineer good idea or electronics another electrical rubbish and it doesn't have a volt meter um so he's making these neck uh ties these necklaces i guess it is um to try and sell locally uh to save up enough money to buy a multimeter thank you for all your videos davey jones enjoy your glow-in-the-dark necklace appears it glows really good if you put it under black uv for a few seconds thank you very much i'm i i i can't get that fir why can i not get that first letter of the first name i think it's kim at first i thought this was like it's got a coil on it and it's got a ferrite looks like it has a ferrite bead in it i think it's been beat up a bit in the post unfortunately so i can i know i can wiggle wiggle yeah that back together but i don't believe it's going to actually do anything in that regards it's just a glow-in-the-dark necklace so thank you very much i have his address and he's without a multimeter so i think i'm gonna i've got a box of multimeters over here i think i'll ship him one thanks mate all right let's test the claim oh yeah no whackers hi to all my viewers in the nether regions that's the netherlands um and in particular i i originally pronounced this turd wages but it's tj i'm sure the j is silent so i'm sure it's tiered or something maybe it is pronounced turd that would be unfortunate but thank you very much um so let's crack it open see what's in here oh background hasn't turned off yet has it oh there is a note probes stuck down all over the place they are multimeter probes they're two millimeter jobbies that's interesting get my old analog my first multimeter my first tandy analog vom uh multimeter was a two millimeter jack and we've got two millimeter to four millimeter adapters right off the bat that is going to be handy yes uh black on red it works every time and we've got a little pogo pin are they actually pogo pins are they just sharp pins no they're pogos and we've got other little sharp adapters cool always worth having once again in your kit um worth having like multiple like different types of test leads for fine probing stuff little easy hook probes and all sorts of stuff and you know like banana plug to bnc adapters and all sorts of stuff anyway it's been a long time fan since number 42 i can't remember oh exploding caps yes in slow motion it's been 11 years tell me about it about time for uh to contribute something for the past year i've been making multimeter probes which pcb work better than the large standard probes you get with a multimeter hence pico probes he sells them on tindy awesome let's check out pico probes linked in down below oh there's silicone too oh none of that pvc rubbish there you go scan that on your shoe phone and that'll take you over to um judd's tindy store where he sells these pico probes the probes are also replaceable interchangeable for different shapes i've taped and touched some serrated tips work very well on pin headers and rounded objects and he prefers the two millimeter banana interface over the bulky four millimeter i don't disagree i like the uh two millimeters anyway he's been watching since episode number 42. thank you very much so we have ah here we go got lots of nice little tips they're not oh yeah they are pogoey so you've got multiple different types of uh two millimeter to four millimeter adapters here so you just whack those in there like that and that's sweet that's nice and compact i like that the only thing missing would be some um easy hook interfaces so how do we stop rolling away bloody hell yeah i think if we want to replace our pogo pins in there we have to cut the heat shrink on that what a bummer but anyway they look at those long probes getting those hard to reach places ooh nice and the silicones wires very nice so there you go that's a nice little bit of kit it'd be nice if you had like a matching as i said like a matching little micro grabber attachment or something like that as well that would be sweet anyway thank you very much check it out the pico probes you

Channel: EEVblog

Views: 45,568

Rating: 4.8935018 out of 5

Keywords: eevblog, video, mailbag

Id: Ayj65iqD00Q

Length: 43min 29sec (2609 seconds)

Published: Thu Jul 29 2021