Hi welcome to everyone's favorite segment mailbag. Let's get straight into I Haven't done it for a while. Oh, you may recognize the tape Infiniti PV We've had some of this stuff on here before so they're having a second suck of the south. but this stuff is really cool so let's here we go.

Now we're talking so yeah no it's not more of a same although they pretty much are a one thing company. but they make many variations of oh I know cool. We have some boards this time. not just the very funky printed solar cells which you have seen before.

these are awesome. These new yep oh hang on 3m. whoa it's good. Let me tell you what is it Yeah, the printed um solar cells which are great flexible solar cells.

These are absolutely awesome and so I don't think we have one of those that format before. That's really cool and we've got looks like a double one hanging on there, the contacts coming out and ah ah there we go. But they can print these any arbitrary length. They mike and they're real are printed organic solar cells for Dave Jones eevblog.

Awesome thank you very much Infinity PV But not just the printed cells. this time they've got some frame spankin' new boards so let's check them out. Ah, this is ridiculous. Look at this.

it's a USB it's a despair I Can't dispense and kind of thing but it's like a USB and you just pull it out. He's brilliant. Oh wow and you wind it yet you wind it back in with the USB. We'll take a closer look.

This is great. I Love printed solar cells. These things have a future. Can we buy shares in them? Oh wait, they're not hugely efficient, but they don't come with time.

but they I don't think they'll ever be as efficient as all your regular types of are. true top solar and stuff like that, they probably won't ever be as efficient, but it doesn't matter. They're cheaper to print and you can print them in any length in they're just so done useful. These things are just great.

They're the Ducks guts really. and look, you can see that they can. just you know because these are just printed. They can just print anything they want on them so you know, custom message or whatever and I've shown you close-ups of you know this before.

So yeah, you've seen it on a previous mailbag, but they can just print these. There's a couple of layers that go into it, but you can see the see the serial nature of it here. So here's the negative for example and you can see they go under the big bulk under layer and pops up here and then goes under and there. So they're got all these in series.

Fantastic. Unfortunately I'm it's very overcast out there today I'm haven't got full Sun so like I'd have to do a separate video like characterizing these things or something because they really are terrific. But look at this if custom made this for me Dave Eevblog if you can see that and they've actually it's a 2600 made in. Denmark I'd hold my Danish viewers 2600 milliamp hour lithium-ion battery in there and USB 5 volt 1 amp power output and you just couldn't just pull out this also now of course in full.

Sun This is not going to charge it very quickly at all and of course I'd have to do experiments on that to see exactly how quickly it can charge 2600 milliamp hours. You know that's a fair decent capacity cell, but of course you're pre charged. If you're stuck in the middle of nowhere and you got all the time in the world, then you can certainly wait for it to charge, but that's just that's great. I'm going to whack that in the backpack when I go I'm gonna go out back.

Terrific! So this big array here. just sitting here in the lab with my arse to overhead regular overhead dust studio lights on. We're only talking like 22 micro amps. I mean it's you know, bugger-all, short-circuit current and of if I put my hands over it you might yet you can see it drop.

There we go. and you know indoor light. These things aren't efficient to begin with, let alone indoor light like this. And if I switch on my studio lights under here, there's I think there's 200 Watts worth of compact floors under there and it's like a milliamp.

Yeah, it's These things are not efficient at all and that's a reasonable volume like area if you did that as a square area for a regular solar panel. but anyway, this is not, you know Sun equivalent so you know, don't get all excited. but yeah, yeah, not much. I get look the currents going up.

so is that like a temperature thing? Because these bulbs are now in close proximity that'd be heating up, they might be getting more efficient. What we've got here is the Opv 3w 6 TV It might give it away. 3 watts capability, 60 volts maximum power point conversion as well tracking. so that's brilliant.

Um, these are little boards that you can do USB charging and loads and stuff like that. so I'll link them in down below if you want to check them out. I'm not gonna experiment with them, aren't now? I Really need to like have full Sun outside the Sun it is dark and gloomy and overcast out there. It really wouldn't be, you know.

Ideal test: I Have to do a separate video on these things, but this looks really quite good. 3 watt capability 60 volts there. it is up to ok so on 8 for 266 volt open circuit stream and maximum power point range only goes up to 42. You can have two parallel inputs maximum 1.5 m current output.

these are this is a really groovy little arm addition to the organic printed solar cells and love these things. so definitely gonna have to do a separate video. Having to play around with this? See what we can get out? As I said, they're not hugely efficient, but the fact that you can print them and print them at such low cost using simple machines, it's just fantastic. So linked down below: hi to all my Austrian viewers not Australia Austria I think you are Johan Netta from DSP Crowd Electronics in History Oster Ik Anyway, that's the Austrian pronunciation pronunciation of Austria Apparently it's a oh jeez.

I'll get that off later. It's a um that's a Raspberry Pi DS P Crowd Comm with a - that looks like a Raspberry Pi type thing. It's all done in Kicad for UT CAD fanboys with a little bread board on top. That's neat.

Let's check it out. Good on you Joe From DSP Crowd Electronics sent in this puppy here. it's actually converts at Raspberry Pi Well it actually connects a Raspberry Pi to a De. Oh no no and it's got some stuff on the it's open Source.

There we go. Um they have. They used my new tonight. They haven't used my new open source symbol down there yet.

A few people have quite a few projects out there have actually started to use it. anyway. what it converts is an FPGA kit which you've seen before which is the I'll get this out of here which is the de Oh nano are nice little you know, starter Fpga development type board and it actually connects that so it's designed to connect that into there like that. Oh Oh does it even? Ah, hang on does that? Ah ah, it's hitting me.

It's three ways. It's supposed to not know that's a file. I Was going to say that's what it's supposed to do. Maybe you got to take off the plastic thing to make it work.

Okay Farah if that's the case. fair enough. Anyway, that goes in there and then your Raspberry Pi sits under the bottom. They've got the extended headers like that so you can get combined in in a development system.

the power of a you know, like a cyclone. what is that? a cyclone 2 or whatever. Any wait, um no cycling for cycling too is pretty cold. cyclone in FPGA with a you know, reasonably powerful ARM processor in the Raspberry Pi and you've got some breadboard stuff.

you got Julie thir net type interface I won't go into all the details and of course to power it up, an experiment with it can take hours and hours, but that looks like a nice solution if you're looking to combine FPGA functionality with a Raspberry Pi cuz the Raspberry Pi ecosystem. you know tons of development tools are available, lots of big community, everything like that sure you can get. You know FPGA is with the built-in cores and that sort of stuff that combine it but you know this is just a neat way. If you if you like this platform it you like this one, you want to join them together.

It's a neat way to do it. I Like that good on your joke. Link it in down below. thank you very much.

Tim Savage from Kitumba just up the mountain is here my workers. um this I think I'm gonna like we do like these here on the V block. it's a teardown spoiler alert Alright Tada I do believe I Well I kind of like not asked for it but Tim has very kindly sent in a HP 48 g4. oh yeah for teardown because I did a poll like comment Paul last time asking if I should have torn down that brand-new HP 48 G and everyone said no, don't do it So Tim very kindly sent in one that we can rip apart that's already been ripped apart or something so awesome.

it's a looking scythe thank you very much Tim Yes, these are a complete pain in the ass to open up. The metal face is glued on with the plastic heat steaks as I surmised in a previous mailbag video. no Ace is 20 years old. still going fine apparently.

Hmm, let's crack it open anyway. if you take the plate off for those HP key fanboys, there's the mechanism for that. Of course there's no one for there. Excellent tactile feedback, so they do that.

using this plastic you know, complete cage type thing and then go. Of course they'll have our tactile domes on the board. They'd be like, you know, snap Tron or some other top-quality dome with good feedback. But yeah, that's nicely engineered.

Yes, it still works just fine after 20 years bloody Ripper And here we go. We were in like Flynn and here's the whole thing. You can still see the battery contacts coming out here. looks like we've got metal I'm taking that out yet metal shield all on the bottom.

Oh well, at least up to the LCD. They're very nice and around. Oh now Tim has made a couple of original modifications. So back when you know, upgrade in the RAM was a big deal.

so it's just hacked it in, upgraded it, and Bob's your uncle. I Once again it didn't go back together very well because he's a very tricky to take apart and put back together cleanly. But yeah, that's the mod for the memory upgrade and then we've got ourselves the main processor. Of course it's a custom HP job, but it's manufactured by NEC and they wouldn't have manufactured their own ones.

Man, we got some Epson LCD drivers. There's two of those said eighteen Eleven eighty one for those playing along at home and of course these are just regular SRAM's arm notice DRAM Rubbish. So they hold the contents on the smell of an oily rag. And of course we've got a large cap to back that up.

All your changing the batteries? no worries, but check out all the test points they got on here. Imagine the bed of nails to test this thing Wow But yeah, they would be thoroughly better nails testing each board before their after their manufactured. And there's the bottom of the board. and we've got the there's the zebra strips for the dot-matrix LCD and there's the keypad.

Look at all the heat stakes. These are the evil heat steaks that pulls together the entire case and everything else. Look how many holding together that keyboard but you need it because HP engineer keyboards well and you don't want any. you know, soft spots where all this keys a little bit softer than this one up here cuz you didn't put enough heat steaks in and that when you get when you rip out the heat stakes and weave through to a sheet it's got a good old-fashioned HP logo.

Know that new modern rubbish. and there we go at all. look at that. they aren't active.

No, they aren't tactile times, they're using the that's interesting. There you go. No, they just use the carbon film I Was going to say paper but it's yeah, it's MA It's actually filled and they've just got you know, standard sort of land patterns for those. Aha, there we go.

Found the tactile dome. It's not on the board, it's actually embedded in the plastic sheeting in here. You can see that, see that tactile dome in there and that's what causes the famous HP snap. So that's just a levered.

let's just leave it plastic. but you can bind it in there and it this is not feel. Ovation Yep, like is the famous snap just based on the plastic dome. Like that.

Neat. That's a really elegant, low-cost solution to do it better than like metal tactile domes we chant. Particularly cheap. but yeah, once you've got your process down a right for that plastic film, that's that's pretty.

Jessie I Wonder if HP make that themselves or whether or not they actually get that contracted out. Wonder who makes it? Hmm. Does anyone know? Leave it in the comments and you can see that the carbon traces these are just pressed straight onto the board in there so it doesn't even go through a zipper. A strip for that? Neat.

If you can make it work well, you can make anything work with 10,000 bloody Heat steaks. So thank you very much Tim for sending that went in and sacrificing it because you really do have to sacrifice it. I Mean to get to that keyboard and actually have a look at what's doing that you know like to put this back together. Oh, you can maybe get it and back together to be a mess.

It'll be an absolute mess. So yeah, these things are not designed to be taken apart. Everything heats take. you.

Saw how many heat steaks. look at all that it all that heat. Miss it. Cut off each individual heat.

Stakes: Ridiculous. How many were there? Crazy Bloody Hewlett-packard but these were bloody good. Keyboards to thumbs up. Thanks Tim Probably 10th sucker the serve I Think oh they must hold the record dizzy Lent I Love digital it.

They just make everything. They make Lots of cool stuff. so let's check it out. They've obviously sent in some new demo E type board so it's got one of these pull tabs.

How convenient. Fragile Wow Really Oh File complete and out of fight. What a lot of garbage waivable That's here. We all know at post it's a half and a half.

You got to pull from either side. So I probably have to do two and then slam my ends dr. Ridiculous. Anyway, see what digital in the center? Fragile.

It's another analog discovery. Why hang on? I was fooled. It looks the same as the analog discovery, but it's not. It's the new.

I presume new digital discovery so logic analyzer type a thing I Would presume What our hope: High speed inputs wonder if it does like it can generate like high speed I Wanted something recently that could generate high speed custom SPI stuff and things like that I wonder if it can actually generate stuff? Whether or not it's high speed inputs know they're just inputs in there's inputs and outputs. Yeah. I wonder if that'd be nice I Wanted like an SPI like protocol generator for like testing stuff and things like that. So I wonder if we can do that? Let's find out it's a logic analyzer and pattern generator as well.

So I might like. I'll have to do a separate review on this, but I will show you the software very briefly. 199 US dollars. It's a bit pricey for what is it? Probably essentially just an FPGA in there, but you're paying for the software and the capability in there.

so you know you could almost say it's commodity highway. There's not actually a fair bit in there. there's double-sided load and everything else. Actually, it's crack it open.

Yep, essentially it's just a Spartan six FPGA And you know, just a bunch of miscellaneous are stuff you got, you know, FTDI and things like that. But yeah, this is the product. We were actually going to do just a Spartan six FPGA to generate digital patterns. So this is a logic analyzer.

like the logic analyzer. market is just completely flooded. How much value can it add there? but where it can add it as is a digital. Hey, this black solder mask my camera just goes into like like this is like low light should gain that up.

Sure. Anyway, bloody hell, let's go check out the software. So it's basically just an FPGA that can do the high-speed digital pattern generation and also the logic analyzer stuff as well. I Don't think the logic analyzers too advanced I'd say it probably doesn't have you know, adjustable trigger level and stuff like that? I'm pretty sure it wouldn't not with that sort of circuitry.

So what's that chippy there? That's just our buffer. Is it? Have to have a look at that? And of course it has the requisite diode protection on the other side. Jesus Silk screens busy isn't it with all the squares around everything? Wow right? So I've have a very quick look at the software and this will not be a review. Then we have the various supplies.

the output voltage. We can actually select five different levels from 3.3 to 1.2 Would have been nice to have 5 volt option there the output. but I know that you know to get the buffer translators to do that anyway. does have look adjustable threshold voltage.

There we go. that's just going down Okay so you can't adjust those individually. Okay, there we go. Then we can just set the individual outputs to all up and like float and you can set individual ones to our Zetas floating of course.

And then we've got the logic analyzer. I Won't go in there, play with the logic analyzer. That's time for a view. What I'm interested in is can this all stink and aesthetic? I Oh look well okay we can adjust and they've read it and feed stuff in and just see the lids and stuff like that.

That's kind of neat. And then you can do our protocol stuff. This is what I'm interested. And by the way, you can just generate patterns.

A pattern generator. So I was actually going to design a product that actually did this because I wanted something that you can generate. You know SPI I squared, C and you art and other signals up to R but you know very high rates and stuff like that. Hence the FPGA and David and I were just actually discussing this project before we open this.

I Coincidentally and how I looked before and they didn't have the ability. I looked at the previous like the analog discovery and stuff and all it had was the pattern generator. like this and that didn't actually do it. But this protocol one.

Bingo. we can generate UART SPI I squared, C and SPI can go up to 50 Megan Thank you very much. That's unbelievable. Unfortunately, a little bit of a limitation.

It doesn't look like you can you know do like, can you type in your own frequency? No. Okay, so it's it's fixed divider frequency. That's a bit of a shame. Wouldn't be nice to do that.

But anyway, to go up that high and the ability to do that is quite right, I'm quite nice anyway. Look, you've got quad writes and reads for the SPI and this is just a simple mode and custom mode. Looks like you can script the whole thing. Beautiful for you.

our script fanboys Wow need Anyway, this is very powerful so you can write data out. Is that only in your hex? I guess I Binary Okay right. Yep. so you can actually write data out and just generate a high speed protocol generator.

so this does the basic business. I'm very very happy with that that that will come in handy for generating um you know test and demo signals for our the various protocols so that really is quite neat. I'm very happy with that and you are rocket. Welcome the you won't go up to Ah there we go Once again.

50 Meg You art thank you very much. It would have been nice. yeah once again, if you could set that that would have been really an 9 921. That would have been really nice, but hey, this is really rather handy.

I'm liking it and I squid see up to 10 Meg Wow, your bus capacitance is really going to matter when you're getting up that high. You know you know that? pull up that 2 K that nominal to Cape to pull up in the standard may not be enough. Hmm. Anyway, um this looks like it could work a treat.

Separate review will have to come because I can't play around too much now. thank you very much Matthew Fields and Hi to all my viewers in Baltimore Um I Can't help it every time I think of Baltimore I think of the sum of all fears like you know they nuke Baltimore um I it's just that's a great scene by the way. not that I wish for Baltimore to be nude. it's just I like nuke scenes and it's it's very cool.

Anyway, if you haven't seen the nuke scene in Sum of All Fears, do yourself a favor. Anyway, that's a Jack Ryan theme that's in the Jack Ryan universe. So anyway, whole bunch of stuff. thank you very much.

Let's no. nope Oh always one of these. Oh yeah, we've got a whole bunch of stuff obviously fit up with me using this ridiculous thing to open packages and has sent oh and nip X and nip X so it looks made in Germany Wow Yeah, um, a thousand volt rated just in case you cut through cables. Wow, that's great as that blade.

It's got to be replaced. That play replaceable I Don't think it's replaceable. That's a bit of a shame. it's not like the I irreplaceable Stanley knife Anyway, that's really that's really rather cool.

I might start using that but instead of a coz this one's a bit more dangerous, you know that's exposed. Love the danger anyway. I'm tools thank you very much. We Oh pecos soft grip chip lift up we up make a chip lifter.

Wow I said like have I still got the prog in one you know - lifting up, dip, chips and stuff like it's a chip lift up. Brilliant! So I'll get a whole ton of tools once again. Nip X and it's got am like oh I'm gonna put oh gotta push it do I push it down oh that's that's pornographic I like that very nice and hang on most. Ahh thank you very much going to town.

we're uh Alan case it awesome and haven't even gotten to the good, Well the whole thing oh just fantastic and that's so spend a cent brilliant Thank you very much. Ah, here we go. Obviously sick and tired of me. That's a box-cutter schmick box cutter a Mart or branded box cut.

It's got the little blade in there and I think that's gonna stay on the bench now. we have some vintage stuff. Ah beautiful micron tur Tandy slash RadioShack I think I lusted after this back in the day. ah like all but back when auto-ranging was like a big deal.

Ah yeah, two minute air now. fantastic but one of these oh geez that's in crusty Nick it's the Phillips Phillips multimeter that's um that is in the worst condition I've ever seen someone's gaffer tape that back together? Wow another two-minute tear down? Awesome! Thank you very much Matthews A longtime viewer but is a new fellow blogger. start up a new our YouTube channel German Tour reviews where he reviews German branded tools. Awesome! so they're all made in Germany Food with the exception of the we are Elke, a couple crusty and a couple of crusty already meters of Mrs.

Channel has it linked it in I'll try and find it German Tool reviews and I'll link it in down below. Check it out! Oh boy, Check this out! This was crusty as cloth tape on the side and it's just completely worn off so somebody put the tape on this and then wore the absolute crap out of it. Wow Anyway, I used to lust after one of these things because you know, like it just looks like a solid bit of kit. you know the PM 27 One 8x RMS True RMS Multimeter NIST Traceable Calibration 93 thank you very much, but these were.

they're pretty high spec units back in the day I have to pull up a spec sheet for it, but you know, like yeah, they use the shrouded plugs and stuff like that weird ass ones that come in the side and stuff like that, but they just looked like it had a lot of functionality. I Just you know, it wasn't your traditional handheld multimeter for C cell batteries in the puppy I You're gonna wonder how long that would last I mean you know LCD on the thing, but probably not. Super low-power surgery has got external RDC as well to power it like 9 volts or whatever it is so it must must chew the old electrons there I reckon Anyway, look at the fuse holder down in there little M 205 job not on this HRC rubbish or is it I Yep, yeah we go. at least use a little last ceramic.

Check it out. You can actually see the sand granules in there inside the is that no, presumably yet glass and great rather than like you know, like the ceramic are just you know, solid ceramic form or whatever. they've just put the sand inside just to stop it exploding a little bit. mm-hmm yeah, not exactly hugely.

HRC It wouldn't be a massive rupture capability, but better than your regular fuse battery. Yeah, it was already broken like it was already shattered apart. but look at that. There we go.

we're in like Flynn old school. Check out the range switch. There we go. it looks like jewel wipe contacts are they anyway? yeah it doesn't feel the best so that just have the gold and nickel.

were going over a nickel plate or whatever it is for the heart of rain. switch there and that's a real descriptive number. Double-o-double Oh Six seven? Yeah, that's got to be a custom custom job. Shirley Oh hang on I can use my new chip lifter.

Oh, we're Pico finish meeting Germany I Don't need that rubbish in there. There's yeah there we go. Ah look at that. Just watched a completely NEC job that could be.

yeah, that'll be the year What? So the LCD driver? no, well could be no. that must be the combined processing. That's probably the ATC I'd say based on the analog II components around that puppy and what else we got here, these are all like custom jobs HSH eight for what? Yeah, yeah, this is pretty much mostly custom. Wow not entirely.

but geez. Anyway, there you go. all through-hole components like you know, really old-school type design. Leave the din connector on the side Oh didn't connector in a multimeter and those was par for the course.

Back in the day they didn't really have. you know, input protection wasn't really a thing back then. you know now we have the cat standards and everything else. very stringent requirements to pass and they've got moths and poly switches and and IO protection and all sorts of stuff it? Yeah, back in the day, yeah no no I cares about that.

should be right. Is that colorful puppy there? I Thought that might have been a color coded cap at first but it's I Think that is a a more of a some description but there you go. Very old-school but this thing did the business back in the day. It had lots of advanced functionality like a logic as well.

It can do like opens and short, you know, different. our configuration. Yeah I've had DB and 600 ohm and 50. oh thank you very much.

It was some real advanced functionality back in the day and It was you know, very opulent. It was quite a popular media I think but yet not really much for your Joe average. You know the flukes came along and and I put a stop to this thing. but I'm not sure how long it lasted.

This was. Well, I'm still using it in 93 but I don't think they made it past the 80s did they? hmm and look at this. we have the manual in like it look as new condition kicks came in a beautiful pouch like this Absolutely fan-freaking-tastic Look at this. yeah like it did.

Where is it did logic and stuff? It's got bar graph you know, which was fancy pantsy for the day. and yeah, where it is like it does pulses and stuff like that in intermittent stuff and things like that. I said a bad level and relative references. fantastic capture function, who he suspects and here's why.

though a sought after because you have point. Oh, five percent class. Absolutely fantastic. You know for a four and a half digit meter of the day, really tight stuff.

only half a percent on the DC current. end point one five on the Ohms is doing okay for a four and a half digit meter. No worries there. But yeah, have we got the battery life on this thing? Doesn't tell you? Is it their calibration interview 12-month No, it doesn't tell you the battery life.

Check this out. Mart or look at that. So yeah, it's got the three. It's got blade.

They're laid there so you can slice it, slice and dice along there and then hook under to get you know, tapes and other ones that are already lifted and stuff like that. and this Tada spare blade. just like a Stanley knife. It's a Bobby Dazzler micron to auto range.

It's yeah, the bro in the plastic. it's yellowed with age, but let's take it apart. Oh, it's good. It's got the pull-tab on there for the fuse for the EM 205 fuse.

that was actually common back in the day. not many people do that anymore. Custom manufacturing in Taiwan for RadioShack a division of Tandy Corp Fort Worth Texas Thank you very much. That's great.

Oh I've got the shielded top. thank you very much. Someone was thinking and we've been mooned. There's not much there.

well there's one chip. everything else is not through hole on the bottom. Somebody was drunk when they aligned that like they must have needed a tiny amount of routing room on this side over here or something like that to get some traces out. so they put it on a yeah, you know, Usually you'd like 45-degree angle that, but they haven't.

They've like 10 degree angled. that or something. Hilarious. I Didn't mind these type of jacks back in the day.

It was quite common with the huge solder Phillips on there they I found that they actually worked quite well. They were quite robust with time. No worries there. I Think we're instant for some goodness on the bottom.

My goodness. I mean classic retro? How are you doing this? Yeah, that's a phenolic baseboard. none of this modern Fr4 stuff you know, proper. You know, fibreglass quality that we're used to these days.

Single sided board because you had to save a few cents. Had everything on the bottom, hence why they probably had to angle that chippy which is by the way. haven't seen that one before. S XC 1 901 F I don't know anyone Bueller Bueller Anyway, this was recently common back in the day to actually use like a standard wafer switch like this and not a our PCB mount one.

just the through-hole one. You know you could buy these. these were, you know, and practically off-the-shelf things. and they just worked them in there and made a multimeter out of a look.

Got a little bit of shielded cable running from that point at that point. So there yet? Yeah, they're running the input There we go. Then run the input over there. That's hilarious.

Couple of green I green caps. Yeah, you don't get those much anymore. do you and trimmer? Oh No, Just one trimmer. couple trainees, no worries.

Bobby Dazzler Look at that. Anyway, they're nice solid jacks. They as I said, those work really well. Like practically like a jack stud kind of thing.

Hi, my name is Jack stud so thank you Michael for that very generous package. All the tools interview. Ah Shh hang on, look at this. flips open.

Oh yeah, yep. I'm gonna go off in the corner and Stroke it and oh yeah I'll be back I got a cheap as chips Chinese one there we go. let's check it out. Um I use my new oh dude and yeah this came from even though it 9 was not on here I know it came from it's come directly from China but I know Jonathan clued me up at the Eevblog meetup.

thanks to everyone who went to the Ev1. Meetup it's you know it's on the main channel I Put video of that and he was testing. He is the one who did the do-it-yourself soldering iron in a day like air 2. He wrote the firmware, hacked it all together, got it together like stander in the morning, and then demoed it on my video at the gathering that night.

so that was impressive and he was telling it. Used one of these hey code I've never had one of these because they're actually quite pricey and pretty specialized thing. a Hey Kor temperature thermometer. like soldering iron thermometer.

So you put your soldering iron and it's got the sensor. Anyway, this is not genuine. Heiko It's a complete ripoff one and apparently they're like 20 bucks on ebay, us 2030 dollars on eBay like 1/10 the cost of a genuine one. but Jonathan has done tests on them and he shows me that they're pretty darn accurate compared to the real McCoy So awesome! Yeah, why get a genuine one? Oh do I See even says made in Japan on the back? It's this cannot be a genuine one.

This has got to be a ripoff from China But yeah, they're making it look like it's the real deal made in Japan my ass thank you very much Jordan Chu I think it is from China um I don't even know if this is a male bet I For ya my oh, it's got my own bag on it. Okay, it's a upse job so let's open it up. It's very thin. It's like this, ah, feels like these like an old five and a quarter inch floppy disc in there.

it's not gonna be that and a couple of envelopes. oh oh right, yes from my former employer. Altium um yep they produced. It was like a greeting that they wanted to give greeting cards to customers with tada.

um a Dave Reed by the way, thank you very much Dave Um, but he had someone else ship it. They asked me if they could copy my micro ruler and they did. So it's an Audi 'im micro ruler I'll show you close-up Hang on. This has got gold-plated edges.

Oh yeah, and there's the micro ruler. the original one anyways. I'm not actually sure who manufactured This but the quality seems quite reasonable. And if we flip it over today, there's my ugly mug and yeah, Altium they're advertising out him.

China And there's the QR code for those playing along at home. and check out the wanky gold edge plating on that. Yeah, I don't know, it feels a bit much, but I can understand. You know it's smooth, it's gold.

Yeah and yes. I've almost finished the new version micro and in fact I've had it manufactured. but I'd made a few couple of little changes and yet they'll eventually be a new crowdfunding fad for that thing soon. Soon ish.

Hmm. R&P Logistics: Co um from Vietnam what is this thing? switch to next color which I don't know? There we go I'm liking this thing. this is pretty Schmidt I Got old men Okay, well I won't use it to open packages this good. Felt like fine stuff like this.

You know for some finesse. what? Uh, we've got some Blinky Oh Tecmo Shining Passion Oh God What? It's a bracelet. It's a flashing LED bracelet. oh my.

Why? Why? Device on, Turn light off, Turn light on change flush Pat I Was it for a rave party or something? Is it? Tell you what? if you make money cell flashing LED Gadgets gadgets to like concerts and parties and stuff like that you instantly got you know sale of ten thousand people at the gate who you know pay anything for a flash in. Why? Why? Dave is gonna look They return the lights off. Whoo! Yeah, that's about yeah, that's the gesture you need to make. Yeah thanks David Whoa.

Camera exposure, shine in passion Oh Tecmo I Like So even like is this even worthy of anything on here, it's not even worthy of a two-minute teardown, is it? Look, there's you can practically see through there anyway, but they've got to build in the strap. you know it's okay I just you know, like yeah. I like I don't know anyone want to go to a rave party or something like check it out my funky armband. oh man, oh that's just tragic.

that is tragic. hold it down should go off. I'll fade out. Ah ah, gilded the lily made in Vietnam for those playing along at home I'm a tecmo like that I Don't know why this product this, but it's kind of reasonably engineered.

I Actually don't don't mind it at all. Well, there's the buttons either side for the pushing down on that thing so it's not too shabby, right? All my viewers in the old diet and thank you very much. Paul Compton from Luton in the old art the old dad has England In case you didn't know, let's oh, you want to see me use the right pool, don't you? I know you do. Isn't that effective in that particular situation? Oh, we got, it's gonna be something retro is it? With a note I've got some old relays.

Wow, this one's potted. What on earth is that? I should read the note no show you that up close. That is weird. Whoa offender.

Oh wow. Sander Frequency counter Oh Oh isn't if I make the 200 Meg and 20 Hertz to 10 megahertz. oh that's crusty as oh wow. see me to tear them so Paul save this so rather tragic looking earth and a frequency counter from the of the we beam.

Oh Sounds worse than it actually is, but the our waste electronic hazardous substances thing. if they contain lead, they're gonna throw all these old products out anyway. Do-it-yourself Solar State relays. There you go.

These are like I'll show you this look resin encased beautiful look at that so designed for I'm sorry they were which had 240 volt coils would reset his micros and stuff like that reset. why don't 188 haha beautiful even though it was separate output of the transformer so there was enough interference from that switching to reset the micro so made his own little potted encapsulated solar state relay that gets a thumbs up Beautiful! Oh Hands up if you had one of these. the Pfm 200 I Function gin. Oh goodness.

let's crack it open. Seriously the hell is that? This looked like squish some spider in there or something like this. It's all on all the feet. What? It's wrapped in plastic for our protection.

Oh whoa. Popped right off other guys that was to protect it from the shield which wasn't Oh yeah, yeah. they got a little the flappy bit of metal there to connect not a none of that spring rubbish and does everything else just, it's just hinge out. Whoa.

Oh oh, we've got the National Is that the old National Semiconductor LED bubble display. Is that a genuine national? Pretty sure it was National. who did that one? Not sure. Got anything on the bottom? No, it's not okay.

it's a clone. II Won Anyway, led a bubble display. Their tiny little LED displays in the bubbles just actors up magnifiers to make the digits look a little bit bigger. You ain't no surprises for finding the inner cell 72 1:6 That's a counter display driver basically designed for these applications and a preschooler on the input somewhere in there for those playing along at home for the 200 megahertz range because this thing only has a capability of 10 megahertz or something like that.

So yeah, that's all she wrote for a frequency counter. I Put enough handy little device back in the day. Hands up if you're still using one. Oh, the misters made in the old dart.

What vintage are they anyone? anyone? So thanks to everyone who said something into today's mail bag, there's some interesting stuff in there and sorry if I haven't got around to yours yet. O'Connor's pick them randomly off the shelves Anyway, if you like mail bag, please give it a big thumbs up. Catch you next time you.