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- เผยแพร่เมื่อ 5 ส.ค. 2024
- Mailbag time!
SPOILERS:
Aliens vs Pirates!
Northside service company:
/ @northsideservicecompa...
Nutone intercom system teardown
10:08 Royal Digital Diary Teardown
12:52 Motic / Swift soldering stereo microscope, also rebadged by AmScope
amzn.to/2Lt0sYG
25:03 Texas Hold'em handheld game Teardown
TI 30-XS Calculator teardown
31:43 Elecrow Crowtail STEAM Edu Kit for Micro:bit
36:28 CrowVi USB-C monitor: www.elecrow.com/crowvi-13-3in...
Forum: www.eevblog.com/forum/blog/eev...
#Mailbag #Microscope #Aliens
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Thanks Dave - Great mail bag. Just to clarify, the answering machine was digital for the outgoing message (limited to 10-12 seconds) and there was built-in voice synthesis which recorded the date and time for incoming messages. The board I sent was actually from one of the pre-production units that was designed by Phillips. The redesigned NuTone Model was the IM5006 - which became a very popular model and it was in production for 9 years. - Chris
Thanks for the update, and the stuff!
Northside Service Company Was this the same device demonstrated by the 8-bit guy a few years ago?
"For all those playing along at home: Never put a bag over your head...... it's a trap for Young Players"
Thank you mommy.
yes. was thinking the same.
Royal Mail bags are woven and breathable so they don't trap air, so no worries!
Also don't put in or let a cat out of the bag.
To flip the screen image, just plug the USB C cable in the other way, that's why they're reversible. 😁
39:50 Of course it's upside down, you're in Australia. Everything is upside down there.
and also at 2:34.
˙ɥʇɹoN ʇuᴉod slǝuɐd ɹɐloS ɹno uǝʌǝ 'uʍop ǝpᴉsdn sᴉ ɐᴉlɐɹʇsn∀ uᴉ ƃuᴉɥʇʎɹǝʌǝ 'sǝʎ
Actually, it is Austria
Is that why all the electrons have fallen out?
Upside down and backwards. Lower-case hayches look like muu.
The multiple screws on the PCB for the Texas hold'em game were probably to make sure the two zebra strips stayed in contact between the LCD and PCB.
Minnesota Acoustic yeah once the strip adheres to the etched glass contacts has pulled off, its Game Over for that bit of kit.
Minnesota Acoustic Could still use box clamping for the button boards.
Hi Dave, last month I got the job of my dreams and I know I wouldn’t have made it without the knowledge I’ve got from your blog these years... A very big THANK YOU from me! I owe you a lot mate!
The monitor likely uses HDMI or DP alternate mode. These modes physically connect to the GPU via USB-PD, instead of tunneling the data over the USB digital interface. Since most desktop GPUs are external, there isn't any connection between them and the USB-PD chip on the motherboard. (USB-PD handles both power delivery and alternate mode configuration).
These monitors are intended more for laptops that have USB-C ports.
It also has HDMI for ones that dont -= for some reason he didnt click and use it. He showed it works with HDMI and the USB works for the touch.
Ah, makes sense, thanks.
One would think that a portable monitor such as this would come with its own built-in graphics card, supported by USB.
@@agvulpine - This "portable monitor" is nothing more than a NORMAL monitor without a stand.
NuTone was the leader in Home Intercom(munication) systems in the 70-80's. It fizzled out in the late 90s with the advent of the Internet.
Hi Tom: Not really correct - NuTone made some of their best Intercom models up through 2010. The company was sold at that time and since then everything has been private labeled version of other companies models - Chris
Nothing like being able to sit back and relax on other people’s laurels.
"Quite a substantial _package."_ We had that Nutone intercom system in our last house. Each room had its own terminal mounted in the wall. You could also talk to someone ringing the integrated doorbell. You could play music through it too. It's handy for large multi-story homes.
13:59 funny slip of the tongue calling the microscope a microphone :P :P :P
Heath Wells
Freudian slip, considering the repair to one of the Sony’s excised boom mics.
Based on current comment thumbs up, only 10 people paid attention...
Everything's a microphone in this video 😂 EEV must have bought a new microphone
"Motic also do some optics for Motic even do some optics for Zeiss." Kinda cool little insight into how you edit text there Dave ;) not very keystroke efficient lol
15:00 The arm pivot is simply used for out-of-the-way storage -- free up space on your workbench.
_Stereoscopic _*_microphone?_* Oops! - 13:59
That's why I was checking the comments I was going to say the same thing except I was going to say stereo microphone oopsie I meant microscope.
At 5:06 notice that he writes, "The problems were especially bad with the DIGITAL answering machine and the VOICE SYNTHESIS software." That thing had some advanced features.
Dave thinks we want to see him make his snap judgements about everything so he doesn't bother reading things or thinking about what he's doing.
Jim Wagner which is why DJ holds the letter up super steadily in front of the camera, so WE who can may read.
Rýán Túçk Reading a letter held up to a camera in a YT video is near impossible on most screens.
That monitor is a sign of things to come I'd think, keep people out, like folks that want to repair.
Actually, the monitor is in good condition, this video helps figure it out, th-cam.com/video/ZoeiT0ZyZHI/w-d-xo.html
"Thanks for the Pez despenser - I hate Pez."
"Thanks for the Altoids - I hate mints."
"Why is everything in bags?"
"We don't really do the banners thing in Aussie land."
At least you're honest, Dave. Never change. lol
Hey, I *like* Pez
I still have one of those intercom/radio systems in my house. They were really popular in the late 70s.
We had one when we lived in Texas - this was Plano, so most houses had them. It was pretty useless, since the audio quality wasn't all that great, so you could summon somebody from the kitchen (calling just their room) or broadcast to the whole house - but there were no room-to-room features besides at that main console... so basically a hunk of junk. An invention that didn't really look into what features would have been needed to make it good - most importantly IMO more pairs for sending commands and/or out-of-band signalling to add those features like room-to-room, etc. The concept was neat, but I can count on my hand the number of times we used it to play music through the house... only a few cocktail parties.
@@chouseification Whatever type of system you had - it wasn't a NuTone System (more likely a Music & Sound from Dallas) NuTone Systems always had room-to-room intercom and system - starting in 1957. Systems became more complex over the decades - the best systems were made between 1984 - 2010 - Chris
@@northsideservicecompany3567- not sure on brand but it was a shame to have such an obviously expensive thing on the wall in the kitchen (with small units in the other rooms) and for it to be so limited, when it wouldn't have been hard even with 80s tech to make it work right. :P
Thanks for the forum. I got into my first project yesterday can't wait to start.
The forum is awesome
@@EEVblog I am exclusively using the thermal imaging section. Which is to my knowledge the only thermal imaging enthusiast community on the internet (apart from professionals that do inspection).
But with my upcoming project I need to get into all other EE aspects and the whole forum.
About the LED in the calculator - I think I've seen that before with a solar calculator. Maybe something about loading down the solar cells to keep them from going over voltage in bright light. At least, that's my guess.
Russell Hltn I'd say cheap version of a zener... Limits the voltage output of the solar cell.
The brighter the ambiant light, the brighter the led!
As someone that collects calculators, yeah, I've definitely seen several with LEDs used in this manner... And I think every last one of them was a Texas Instruments model.
@@richfiles Pretty sure this one isn't TI, but I could be wrong: imgur.com/a/Z7J3CKY
Any idea who made it?
I sent that package. It was solar. I used it during middle school
@@EdwardCoffey No clue, but I did find reference to a DS-206L being Casio manufactured, and the calculator had a _very_ similar form factor as the one you show. I'd guess Casio, based on the DS-2000B printed on the circuit board.
Many of the primary manufacturers TI, Casio, Sharp, Canon, etc made basic calculators that could be branded with customer's own branding, hence why yours is branded as "National Australia Bank". TI was the first to manufacture calculators for others, and at one time even sold chip sets and keyboards to other manufacturers.
That said, TI is VERY fond of the LED voltage clamp, but they aren't the only ones to do it. Looking online, I do see Sharp and Casio both do it, but TI... TI slaps that even in some modern models. I know there's examples of TI using LEDs as voltage clamps at least up into the early 2000s.
"In fractions waahhh" 27:17 😂 made my day
hey I sent that package I used in during middle school :3
27:34 Yes, and yes. At very low current LED have advantages over zeners and is used sometimes even today.
Dave: you have turned the microscope arm upside down! The microscope has to be able to bend down in a angle against the stand so you can see the psb and soldering in like 130-150° angle instead of just a 180° straght down angle..... its is bery important!
Been in the motic factory quite a few times, they do some amazing stuff in high-end biological and metallurgical microscopes, beautiful stuff!
I suspect the purpose of the boom joint on the microscope might be to permit flipping the head out of the way when not in use.
That kids kit deserves it's own video. MicroBit is an educational board designed by the BBC.
Elecrow and Naomi Wu were involved in making a Chinese (and other non roman character) version so the many kids across Asia can enjoy learning tech too.
Wow, you even know Sino:bit, that's amazing.
27:35 We cracked open some of our pocket calculators (not only TI) and found LEDs in calculators with solar panels quite often. You are probably right with your idea, that it is a simple and cheap voltage regulator. The characteristic of an LED seems to meet the wanted point of voltage-regulation best, no need for more parts. As soon as voltage excceeds about 1,5...1.6 V, the LED lights up an 'burns away' excess power. ...clever and cheap...
That screen is the Northern Hemisphere version -- hence it appears upside down here "down under". :-)
The tape on top of the capacitors at 6:55 is to keep the magic smoke from escaping, of course 😁
I had one of these in my house growing up. mysteriously nothing went wrong with it in the ~14 years we lived in that house
For the most part, most systems don't require any repair until they are 20 -25 years old - Chris
Tape is probably there to prevent shorting the capacitor towards the case, since the capacitor case is sometimes connected to the negative terminal.
This is your chance to make the ultimate Altoids tin project 😀
In the US, Royal (assuming it's the same one) was a big typewriter manufacturer. During the "franklin planner" days in the early 90s, all the typewriter companies saw the writing on the wall and did not just word processors, but planners, calendars, calculators, etc. Seems Royal may have been a little late to the game there :)
I really like to micro-f-scope! Looks cool and usable. Thanks Dave!
That Nutone intercom looks like a newer version of the one installed throughout the 70s-vintage house I bought when I moved to the States from Oz a couple years ago. I haven't got it all removed yet.
rofl that monitor charger "Designed by in California" clearly an Apple knockoff
Dave, that NuTone Intercom system was installed in a neighbor's house in Georgia. It was wired through the entire house, even the basement. Every single room had a speaker to talk into. Even the garage. And yes it had a radio and a cassette player which you could pipe music throughout the entire house. The cost in 1988 was $5,000.👍👍❤❤
Your neighbor probably had a Model IM4006 - One of the best and most popular models that NuTone ever made - Chris
Would love to see Sagan review the micro:bit kit - I love that little board, its aimed just right at kids and that add on kit looks good
Its also nice for some projects where you might want to send serial data over Bluetooth.
Hi Dave, thank you very much for the review, greatly appreciated. Sorry for that the magnetic case is not that convenient to use. Hope the CrowVi monitor can really help you to boost productivity, rather than don't work properly.
"Pez dispenser, I am, hmm?" lol
That NuTone board looks like it was designed by a team that was great at meeting requirements, but took zero pride in their work.
Without a doubt - you are correct - Chris
Tennessee (Nashville) the home of Country Music. And fine Whiskey of course :)
Robert King and fine Nashville hoods with fine drunk Volunteers.
If I had that microscope, I'd use that adjustable wrist joint to swing the head out of the way when not in use.
You can flip screen orientation in Raspberry Pi config file ;)
xDevs_com
So people in Oz can read it too. That’s the true meaning of “universal “.
Sagan doing a video? Absolutely.Sagan's EEVblog
That screen looks great -- except for the highly reflective surface :-( Why do they make screens with reflective surfaces... makes no sense; they're so hard to view outdoors or when there are strong sources of light indoors. And then there's the fingerprints issue!
Very practical advice. The fingerprint is a problem, that's why we put a super clean wiper in the box. Maybe that's because the touch panel glass is refective.
You may need to hit Windows-P (Windows 10) to enter the projection menu where you can tell it to duplicate the screen or extend, etc.
2004 is when Texas Hold'Em started getting big, if it had been made in the early 90's it would've probably been a 5-card stud poker.
Yes Kingsport is in Tennessee.
I should know.
I have relatives near there.
That charger with the portable display is amazing. "Designed by in California". Seems legit.
I've got a Royal DM80nx organizer that I've had for years. I don't still use it really though.
I saw a red led in a calculator before if you hold it up to a light source you can see the led glow but I don't remember seeing a led in my 30xs though I might have to check again
Back in the days they used LED connected paralel to the solar cell to limit the voltage in a sunlight. I saw that in multiple calculators. Used as a zener essentialy.
nice work on the white text @18:12 , love the video's mate, always entertaining!
yes for sagen to do a review.
I presume that the microscope's arm tilts just for storage, taking up less space.
LEDs have a higher forward voltage, so they are useful. It can be cheaper than using two diodes or a zener.
Altoids are great for low power ham radio transceivers... building and then deploying in a shirt pocket .......
You may need to install DisplayLink for that monitor.
I wonder if that display just uses the USB port for the digitizer and power, while the HDMI is still needed for the video signal.
The USB C monitor can also convey the video data, connect the Samsung/Huawei smartphone or macbook air through USB C to USB C cable, Actually, the monitor is in good condition, this video helps figure it out, th-cam.com/video/ZoeiT0ZyZHI/w-d-xo.html
I had a solar powered calculator, that led is for eliminate the excessive voltae, like a zener diode.
Dave, the swivel clamp on the microscope, you sure it doesn't go sideways so you can swing the head out of the way without moving the base? :p
Right, it's supposed to turn down actually according the to the Ebay listing, but to the side sounds useful too.
Stereoscopic microphone? Now I'm interested. :P
Phone? Scope
I'm pretty sure a pair of laser mics would count as a stereoscopic microphone?
@@mycosys it seems i missed something
@@dst0815 He (Dave) accidently called it a stereoscopic microphone at one point.
@@brokenacoustic ah. ic. thank you
Sagan's Reviews has my vote!
Nice Mailbag Dave... 10/10
That microscope is brilliant, I have an RS version (Bresser branded) with a single LED Gooseneck Led, but it absolutely does the business for smd work, esp. with my eyes :-) excellent value.... thanks Dave...
Tony Bell same here, I used it for many years and built hundreds of boards of 0402 and 0.5mm pitch QFNs etc, and repaired thousands more. I invested in a zoom microscope a few years ago, but the old one was perfectly fine.
Used to have a radio-intercom system in my house with one main, one in each bedroom, and two outside. Not that brand, though.
Wow Mouser is owned by Berkshire, through TTI inc. I never knew, always wanted shares in Digikey or Mouser.
Thanks Dave very much!
The bottom 'limiter' is to hold the weight of the entire arm and swing the head and arm sideways out of the way. Work away happily and if you need some magnification just swing the head over and it is good to go. Super convenient.
Dave did you change video source on the monitor menu to USB-C or you still have it in HDMI? I don't think it's smart enought on its own to autodetect the source of the signal.
at 14:00 min you have a TI-30xs i love that calculator and its fractions input method you can even due the quadratic formula in its natural state on it.
It tilts up so you can get it out of the way!
The Micro:Bit.... what can I say, it is neat looking however there are some problems with it:
1) Several commercial parties involved (copycat Microsoft Blocks in the beginning, replaced with Scratch which is better) ;
2) The documentation for teachers is too often incomplete or incorrect or not translated;
3) Some software (for example on a tablet) doesn't work;
4) The product stimulates to use (Micro-)python instead of C, C-like language;
5) The 'display' of 5x5 is very limited;
6) To access the full pinout you need an adapter (which is not included, some third-party made an adapter for it);
7) For what you can do with it, it is extremely pricey, close to buy a raspberry Pi ;
8) If you want more with it, you have to rely on online software of NXP, which is not hassle free.
I was on a Maker-faire in 2018 and spoke a NXP guy and get one to try it out. Nice. Tried it out for one week. Soon I detect the listed problems, the idea is great however there are some flaws that makes me wonder what a good reason is to use this as educational product, especially when it comes to teacher guidelines. It looks like a marketing strategy to bind kids to companies or brands. I don't think it is a good idea, I like the Arduino way more than this "all-in-one-complete-wonder" solution, if you want to do more you have to buy more official micro:bit branded stuff, like a toy with add-ons to make the basics more functional. Take a look at the box you received.
It is difficult to explain but there is something wrong with this product, to me it doesn't feel right. The micro:bit is designed to learn programming, software, no hardware, hardware are just tools. I think Arduino did it better, maybe a little harder to learn (because of all the possibilities) however you learn more from it because it is not a toy but can threated as a toy to play with. Micro:bit force kids into one direction.
I love to see what Sagan thinks about this product after his excellent 8-bit kit solder job, to childish I think, boring. One note, you need to buy a micro:bit first ;-)
Great to see another Video.
Was it pre-flood or is it after-flood video?
PS: will watch it later, TH-cam is still encoding the good resolutiions...
"PS: will watch it later, TH-cam is still encoding the good resolutiions..."
For once my slow internet connection gives me an advantage.
I have TI calculator, and indeed it has an LED inside. Weird.
1:23 It's a shame they don't make the black licorice mints anymore. Those were THE BEST.
Hi Dave, It does not happen to hang up, it would explain this jib setting. loosen the three screws on the microscope tripod that holds the outrigger arm, then on the microscope, turn the arm through 180 ° and you can tilt the microscope down.
Have a nice wishes ;) Tom
That charger was “Designed by in California” 37:44
Sounds legit!
"Look! I'm a Royal Mail bag! Woohoo!" - love it
I have almost the exact same microscope branded by AmScope (as noted later in the vid - hadn't quite gotten there yet as I starting writing this). I only have a single illuminator though. I have quite a bit of optics experience through photography and pro 'scopes, and considering I had a very limited budget - and desperately needed (wanted) one - I've been very happy using this. The image is very nice, no aberrations visible. Focussing smooth. I just stick with the 10X and have done trace repairs next to 0402 components (and reflowing those - a bit small for my taste!). Mostly I've done a lot of builds using 0603 and 0805, etc., using solder paste, tweezers, and the cheap hot air station building kits and prototypes (along with the 0.2 mm Hakko tips). Love using it, as for me it's less wear and tear on my less-than-perfect shoulders (I keep my forearms resting). I guess that would apply to any SMT work though!
For capturing stills or video, I've used my iPhone and an ocular adapter. It just clamps onto the eyepiece and clamps onto the phone. Once you get the hang of centering the mount, I've shot some perfectly acceptable micrographs.
Now to get on to building my new lab bench and set things up again. Moved about 6 mo ago and it's still on the to do list. Gotta get shelves setup so I can push the 'scope back when not using it. Speaking of which: the "elbow" joint allows me to reclaim horizontal workspace. It takes up a lot less real estate when folded up. Can't think of another use. The few degrees down from level can help fine tune one's comfort, but otherwise it just gets the head up and out.
Enjoy! Keep up the great vids!
Thanks for the video Dave. Seems to be a bit of a problem with the upload though... 360p available only
Back in my day we watched everything in ONE P and we had to shovel coals while we watched! Uphill both ways in the snow! 😂
That UK royal mail bag has done some air miles ;)
Microbit was given to all kids at a certain age in UK properr failure as only got the board and it did not a lot. This year they put them in local libraries but nobody borrowed them. Kids aint interested when they got a smartphone
He opened my package!!! I am the one from tennessee. I tried to send the money but they made me remove because Australia was not allowed to get it. It was going to be penny nickel dime quarter half dollar gold dollar. There also should had been a stamp in the box.
@@shiwomino5775 i don´t think that you get away with that, because customs usually x-ray the boxes they want to inspect, anyway...but it´s may be worth a try ;)
Next time, when somebody asks if you're a god, you say NO! (with apologies to Ghostbusters)
33:27 I guess you've not covered the BBC Micro:bit? We've given every year7 access to one.
Sagan might want to do a video on it
I had a sharp 9600. But I dreamed of having a zaurus.
Wasn’t Royal a typewriter manufacturer?
Antonio Tejada no it sold ink on ribbons, just like every other printing device manufacturer does.
Yes --- Royal made real, old-school typewriters with actual mechanical keys and (originally) required no electrical power whatsoever. Then eventually electric typewriters. They apparently went through some interesting ownership changes, and you can apparently still buy an actual Royal typewriter today -- which I think is kinda cool, actually.
Rýán Túçk Well every typewriter manufacturer would have sold ribbons for its typewriters, and Royal would be no exception...
A bandana is useful for keeping long hair off of your face, or for keeping your head warm in cool weather. You can also wet it to keep your head cool in warm weather.
Yay cool mailbag!! (Im a Royal mailbag. lol). Ive used Altoids tins for small amplifiers and simple wave generators for gigs.:)
I reckon Sagan doing a video testrun of the Sensor kit and Scratch would be Awesome. My nephew Adam in NZ would love it!! x
Sadly all usb-c ports are not alike. The monitor perhaps needs usb-c a port with thunderbolt to work.
Your desktop doesnt support USB display, you need a GPU with onboard USB-C, or a motherboard that does support USB for video (if you have a motherboard that supports USB video you can still use the GPU to accelerate renders and pass it to the onboard, but you need to use the motherboard out)
You need a usb c that does support video out, which only laptops and phones do.. And even then, not all of them have video out over usb-c..
your son should be in charge of doing these microcontroller boards vids. the eyes of a child and electronics can be inspiring to many other younger techs.
Please get the micro bit for that kit. I have a micro bit I use with my daughter. Been looking for an addon kit would love to get your/Sagan's opinion.
TI-36X Solar has an LED on the back of the board, too...
Altoids , Cinnamon and Wintergreen flavors are wonderful.
27:33 LED is there to regulate the voltage output from the solar cell to 1.2V. I had a cheap solar calculator back when I was in school and there was a red LED soldered across the solar cell. I was curious and I removed the LED and calculator screen would turn on all segments whenever there was a strong light (overvoltage ~2.5 V). With LED across, the voltage never went above 1.2V
Is there a fuse in this microscope base? Can't see one.
I was curious about the phrase 'cheap as chips". I found it as far back as 1865 in the British Newspaper Archive. Its use dwindled in the late 20th century, but it has come back with avengence in the 21thC thanks to David Dickinson
You can edit the config file in raspberry pie to turn off HDMI auto-detect.
Dave, I think you're likely to need DisplayLink adapters to make it work under Windows
HDMI