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- Опубліковано 8 вер 2024
- Mailbag is back!
Forum: www.eevblog.com...
SPOILERS:
Trezor Bitcoin Hardware Wallet. Dave is looking into the new crypto currency Corion:
corion.io/-f1
1980 Retro Language Translator Teardown
Arduino interfacing book: www.abcthebook....
ReflowR Hot plate PCB reflow machine
www.reflowr.com
50ohm Dummy Load for babies from First Advanced Industrial Labs
Black Box for stealing Pay TV, teardown.
Retro radio alarm clock teardown
Bee Maths Ruler: www.kickstarte...
Bayard-Alpert Ionization gauge.
Voltage tester pen teardown
Alcatel/Lucent telecommunications processor teardown
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The painting gift is so extraordinarily sweet and kind. You should be proud of your impact Dave.
I don't normally go for abstract art but I actually really like this one.
It sucked though.
it is never about the quality, the thought behind it is what counts - regardless I think it's pretty cool personally
@@SodAlmighty no i just look at it and see something so uniquely organic. i won’t go all connoisseur on you but i really like it
Thumbnail at 12:24 thank me later!
CrazyRoadblock Thank you! Now I can sleep
cheers
Top selling product at ebay at this moment..
"WWII Cold War IFF USAAF B-17 B-24 B-25 Radio Destroy/ Destruct Switch Box BC-765"
The guy selling is having a blast! :P
thank you
thanks dude now i know that doohickey
Each ruler is a decryption key - all you need now are top secret documents to use them on! The holes reveal the plaintext.
Of course!
William Squires this deserves top comment!
If you look at the rulers, you'd notice the design in the background is the same as a bee's honeycomb. There is your bee tie in.
WARNING: Apply to input (FEED) jack only! Applying to output jack will overload your device.
26:13
Fucking gold!
Ikr so funny
I had to double take when I saw that
Wow, I just now got that. Great one
Anyone found a place to purchase
I like rulers that don't have the 0 at the end, because when it inevitably gets damaged on the ends, you can still use it!
Also if you are drawing a line a certain length with a ruler, you don't want to start your pen right at the end.
You can always start from 1 and add 1 more to the drawing/reading
fyi: The City Köln is internationally known as Cologne
And Łódź in Poland is pronounced Woodgz... Just be thankful it wasn't Wroclaw ;-)
first "dc/dc" module pointed at looked like just a common-mode filter
Haha, I was saying the same while eating and watching the video. Even stopped chewing for a moment.
It is funny that I was not the only one who thought that.
those LTM4600 units are nice, 10A continuous @ up to5v, i could use some of those.
Way late, sorry, but SSR to control the heater current, since everyone missed it so far. 3A heater max.
Those flashers screw onto the valves.....centrifugal force turns them on....
Ah, of course!
Harb's Elecronics Lab I was coming to write this. beat me to it
My knowledge comes from the University of Fatherhood.
I had a set of those when i was younger, they screw apart to change the batteries.
they probably also unscrew to replace batteries, couldn't quite tell but looks threaded up top past the valve stem thread on.
The alcatel lucent device at the start is a line card, It'll go in a router chassis. Each line card will have it's own processor and memory to be used by the device to perform packet forwarding for the interfaces on that line card.
This won't be for a router, it will be for one of their optical transport platforms - more like a switch, but even slightly below layer 2. Terminology like "shelf controller" combined with the T1/E1/J1 card are dead giveaways. Reminds me a lot of the cards you would find in a 1655 AMU, but they didn't use levers to eject the cards IIRC.
But yes, very common for large platforms to have distributed processing and forwarding.
The red explosive devised can be found in the WW2 B24 liberators. They are used to destroy the very early auto pilot
Them bike lights have a clue as to where to fit them, they're called "TireFlies"............ :P
(Hint: They attach to the valve stem on the wheels!!)
Guess someone never rode a bike in his life!!
I wonder whether Australia uses Schrader valves on bicycles. I think they may be US only. Road bikes in the US and I think pretty much all bikes in the EU use Presta.
Ref 12:24, when I was in the USAF in the early '80s, we had special processing equipment in what we called 'the vertical drawers' in a 19" rack. If our detachment was overrun by anyone, the on-duty equipment operator was to set off the built-in mini shape charge that would blow a hole through the set of circuit cards in the vertical drawers. The cards were wire-wrapped so there wouldn't be any circuit board bits that might be possible to reassemble by the bad guys.
P.S. Apex is still selling those 'DANGER' switches on their eBay store. $40, +$5 shipping.
The two flashing lights at 21:29 look like they go on the bike tire fill valves. Probably activate when the spring of the switch is forced out from centripetal force.
Bingo, I used to have some of those, till i took them apart.
Cameron Webster ?
They don't need to be banged.
That is exactly right. Put them on the tire valve stems
Hey Dave, I work as an ASIC designer at Nokia (formerly Alcatel-Lucent), and that board (or at least its form factor) looks quite familiar to me. I'll ask around to see what it's purpose was.
Seems to be the processor platform for either a core/edge IP router or for a fixed access (DSL/PON) street cabinet.
Wouldn't be surprised if those 2 other heat sinks had some Xilinx FPGA's underneath them.
I'm sure our board teams will be honoured to be featured on this channel. As you said, these systems take a huge amount of effort to design, but no one really gets to see their (beautiful) guts :)
i reckon they should start making transparent street cases with led lighting ;) would look awesome
From the quad ISDN card, fast ethernet card and GE ports, im guessing it was used as some kind of commercial ISDN router?
As an old Air Force Radio Repairman, that 50 Ohm dummy load made me laugh.
29:00 Nice asbestos block - scratch n sniff!
@Todd Berg -
Asbestos is still legal in many countries , incl. China
its a refractory brick, not asbestos...at least I hope.
oh, it's a pacifier, I was not aware that dummy is the Australian and British English word for a pacifier. I felt a bit lost for a moment there.
Oh, yeah, sorry
lol no big deal my friend, I learn a new term which is always appreciated and so is your videos as always thanks.
(except for spiders why the hell do you guys call "rootbeer floats" "spiders")
@@addman : Cause we don't drink root beer....
Hi Dave,
Thanks a lot for showing off my ReflowR. I hope you try the test PCB soon, I am sure you will be impressed (even with the scraper/squeegee). The key to getting the “thermals” right is the proper ramp and soaking times, this ensures the entire board heats evenly and thoroughly. Looking forward to you trying it out. p.s. You can also now find it on tindie.
Many-Maker it looks neat but I wish it had a front panel UI. at least a basic one to choose between profiles. it would be extremely annoying to have to use another computer when I just want to dial up the right profile and press go. especially when I dig it out in a few years and have to refigure out how to control it each time.
John Meacham, the front panel UI (not GUI) is really simple, one button and a beeper, just press the button 3 times to start the lowest temperature profile, (5 times for lead-free) and it will reflow your board. Press the button once to cancel, or twice to hold the current temperature. The app is useful fro more advanced features, like programming your own profiles, viewing logging info etc. For such more advanced features having a nice big screen phone or even PC is better than a tiny LCD panel.
simontay1984, They are $129 on Tindie : www.tindie.com/products/LafrasH/modern-electronics-reflowr/
A hot plate is only good for preheating? The Browne LR-6 was doing conduction reflow soldering of hybrid circuits at big name companies over 35 years ago. Kudos to Lafras if he can get this small unit and an Android phone to even closely mimic what a Sikama Falcon 5 or Browne LR-6 can do.
I make a few thousand boards a year using a similar unit (UYE 946E). Heat to around 250C, then place the boards on. Takes about a minute or so for the solder to melt. Only problem I have had is with electrolytic capacitors which take a long time to heat, solved with a copper pad on the back of the board and vias to conduct the heat through to the top pad. Remove boards carefully with tweezers and a filling knife. Also, components near the edge of the boards take longer to heat, so keep large components away from the edge. You may need to temporarily hold the board down as the heat can make them warp slightly when first applied to the plate.
That meter had to be a troll, you just can't escape it... But it's awesome that you showed it
I actually really like the painting. I know a lot of people online are super harsh on art that isn't some renaissance grade piece of art. But I myself really like abstract art. I love the texture on it was well :D
I also like Dave's voice :D It grows on you, it's quite comforting.
My mom watches your videos because she fell in love with your voice ... i mean it creeps me out but i suppose its flattering xD
Consider me creeped out too.
The hotplate reflow method is actually the preferred method for some of the smaller maker shops because it works so well and is very economical. I think either Adafruit or Sparkfun use it exclusively for their limited-run in-house boards, having paid several thousand $ for a professional reflow oven and being disappointed with the results. I remember reading and a good tutorial on the process on one of their sites.
I use a ceramic griddle to reflow the boards I sell on Tindie and am very happy with the results. I might actually pick a reflowR up as it would be nice to have the thermal profiles available.
I've grown quite comfortable watching a lot of channels at 1.25x, but I HAD to go back to 1.00 for eevblog.
Interesting is that specific Core 2 Duo is a mobile SKU, it's a T7400 intended usually for laptops and similar stuff.
Everton Favretto cool
Hi bro! I've had a go at reflow in a frying pan and it seemed to go fairly well. I took my time to get the soak time etc about right and it reflowed nicely. No board cooking at all.
My grandpa always told me “You should always cut towards yourself so if you screw up you won’t have to live with the embarrassment”🤷♂️
Cutting towards yourself only really presents a danger when you have to put enough force on the knife, that if it were to slip, would cause you to stab yourself. Dragging a large, sharp (I hope!) knife through clear packing tape is really not very dangerous, unless you fall on it or something...
I've got one of those self-destruct boxes too - new off that auction site. It is a WW2 US unit to allow air crews to destroy radios, bomb sites, and the like before leaving an aircraft over opposition territory. Mine is just wired as two push buttons in series. Saw it - couldn't not have it.
At 30:00 has the earth pin of the IEC socket been cut off? Considering the device is enclosed in metal I would hope its earthed!
I don't think it's been cut off. If you see a few seconds later you see the PCB layout where the mains connector will be soldered in. The incoming mains have the pins bend at 90 degrees downto the PCB. The center pin goes to another hole which can take a screw or wire to connect to the case for earth contact.
Wow, dave didn't see the thread to stick them on the valves, and not even the bigger thread to take them apart...
The box shown in the thumbnail pic is a IFF radio destruct push button module used on WWII Boeing B-17 bomber. it was mounted on the cockpit instrument panel so either the pilot or copilot could get to it in the event of a crash landing in enemy territory to destroy the radio gear.
The green light things are valve stem covers for a bike, light up so help people see you or just for fun.
Always glad to see kickstarter advertising go to waste :)
I wouldn't salvage things off of that board. I would use it as is. I wish I had one just like it! (the Alcatel Lucent board) Probably boot linux on it.
And also make it a beefy Router/Firewall
Not so simple, PSU alone would be a problem. It is not like you could just connect any of the shelf PSU and make it work. You need a rack for it as well, just a normal case will not do. In addition probably it would be hard to get drivers for this on just any random Linux. Probably Unix or Solaris would need to be used. Too much hassle if you ask me and you would use like 0.1% capabilities of net bandwidth and any current CPU would eat this for breakfast. So waste of time and power.
That 50ohm dummy load is just perfect. Where can I get one?
That knife is so Australian...
Oh. and it's worth noting that RAM is ECC registered DDR2. You need an Intel Xeon or Core2 processor on the LGA-771 OR BGA/PGA-478B platform to be able to take advantage of the error correction. Pentiums will boot on this RAM but the ECC module will be disabled on the RAM.
Haha. I was checking the links in the description section.The link to the ABC book was kind of funny. I got links to books about ABS. That was the only typo.
The Bee Math ruler caught my attention since I was a mathematics major. Especially the third ruler about integration and differentiation
The inverter in the Italian translator is most certainly to supply the AC voltage for the VFD filaments.
There is a 555 Relaxing Station and a 777 Relaxing Station, both in Clovis, CA. They are massage parlors.
"Under construction since 1868" apparently is a very old joke; don't ask me what it comes from.
"You couldn't sell this on ebay, probably even if it worked" ... eh I'd pay $200 - $400 for it
"obsolete" ... its still good for things... I'm sure some tech enthusiast/hacker would love one of those to toss linux on and admire it while it does servery things or something. Maybe get those T1 cards working in linux somehow and run it as some pbx thing maybe?
I agree! I'd like to get one of those to mess with!
ELECTROHAXZ my dad worked for alcatel-lucent. it was bought by nokia. he works for nokia now, but he could get one of these things.
Qwertydex You'd need the whole unit, this board has no serial/console, power connectors, and god knows what's on that backplane (shutdown signals), then there's GPIO, probably does a lot of power signalling all over the place... You'd pretty much start by disassembling the running OS and reverse engineering it. I'd say mission impossible...
I'd try to install FreeSwitch or Asterisk, (if it doesn't already have that.)
yeh, people send things to Dave . And if they didnt they wouldnt be videos, but his major downfall is ...he doesnt give these gifts justice. And i think he realises this himself.
Like "i'll have to do a seperate video on this" .... but he never does.
The thousands of electronics nic naks that Joe Bloggs would love to have are sitting in a box that will never see the light of day ever again.
Seems ridiculous to me. Just seems like common sense to me, there must be a better way.
For painting- Follow along some Bob Ross videos. He tells you which paints you'll need and it's easy to get the materials. Landscape painting is really easy to do.
Alberto Pighati - I instantly knew who he was. I bought his initial ABC book off of Kickstarter. Only thing I ever bought off of Kickstarter. Had quite a few spelling mistakes in it, and considered offering him proofreading his new book before sending it off to print - but didn't. I felt it might sound arrogant questioning his English skills. Hope the book is as good as the small one was.
Dave, the Tireflys work on centrifugal force. They have a weighted spring in them thtat contacts a plate when it moves, either from shock or centrifugal force. arnd as Grayfox below said, these are valve caps for tires.
And they would screw into the valve stem of the tires.
At 41:22 - About the light green bodge board. This appears to be taking the place of a fourth language ROM slot. I think this because the keyboard has L1, L2, L3 and L4 (four languages?) but there are only three language ROM connectors seen.
I worked in an AT&T central office for ten years, but I'm retired now. I don't know about that exact cards, but we had to plug cards similar to that into the racks. Some of the cards we handled were worth many thousands of dollars each!
That painting made me hungry, now i want some salad and fried eggs!
I want what this guy is on...he has so much energy and enthusiasm. ;)
The 3 watt AC-DC brick is one of the cheapest pcb-mounted AC-DC bricks on Ali, which makes it the cheap/easy option to get 5V in an appliance without the hassle of designing and assembling a complete power supply..
Hotplate SMD soldering like that does work, but it is kinda slow.. (A company I worked with does it like that for their small production runs.)
I have the American Innovations alarm clock, cost $60 new in 2009 and it still works today. The only thing I dislike about it is that goddamned wheelyknob on top that you have to crank like an old model T car to set the time.
I learned a new aussie term; dummy = binky
Same but for us in the US it is called a pacifier
I know of them as "plugs". I got one for a friend's kid that said "Pull to sound alarm" on it. :)
Tom Servo Same for UK, too.
My family called them soothers.
Tom Servo In the US binky is toddler speak for blanket.
Honestly Fresno has the best interstate exit system I've seen. Though I've only stayed for a couple days and didn't see much traffic.
The ABC basic connections book failed rather badly after he was unable to deliver it to backers.
those lights screw onto the air fill valve on the tire inner tube. they flash as the tires rotate. just replace the plastic caps with those and give it a ride.
Ingrid, you ain't alone, I am also here for entertainment.
That is a BaseBand Unit for processing RF from/to cell towers.
Loved the video, Dave. And I ABSOLUTELY LOVE this channel. I'm not an electrical engineer, nor do I have anything but a rudimentary understanding of the subject, but your channel has helped me to become very interested in it and to learn more about a subject I might not have otherwise given any thought to. I hope soon to buy a kit of some sort and start getting some hands on experience and take my interest a bit further. Just wanted to say thanks for taking the time to make these and sharing your love of science and electrical engineering with all of us. Wishing you all the best.
Regarding the Craigs / AMIS translator at the end, I actually had a job programming these, back in 1985!
They were available as a hand-held computers (HHC), without the translation software, and you could load them with your own custom software.
The platform was a 6502 clone, and development was made on Apple ][ computers. You had something like 2 or 4K of nonvolatile RAM, and the ROM chips were 4K. You had to use very clever tricks to shoehorn programs and data into it (I managed to squeeze a 10,000 number table into a 4k chip, WITH the program to expand it - and this was before LZW became widespread…).
The HHC we worked on were used in the life insurance industry, where agents printed out (there was a thermal printer available for those HHCs) tables of benefits for the clients they visited.
The machines were programmed in Forth, which actually produces code that is even more compact than assembler.
Our job was to reverse-engineer a competitor’s product (the insurance company was pissed that they asked a fortune to update the insurance rate tables), so for this, we wrote a Forth decompiler that decoded the ROMS and spewed forth compilable code. We had lots of shits and giggle looking at the "source" code as it was very inconsistent, like if written by a committee of monkeys, which made out job of rewriting the custom software a lot easier, as we could hand-code programs that were a lot smaller.
Oh, that inductor you wonder about is simply to produce the high-voltage for the fluorescent display.
I have that exact alarm clock! The sound quality sucks, and the rotary switch is dodgy.... But I LOVE the start-low and ramp up alarm, and the per-day alarm schedule!
Having absolutely no memory of Fresno is almost certain proof that you have in fact been there.
"I'm cutting towards myself because it triggers people". You're laugh certainly triggered my laugh Dave 😂
That's still using the standard UTP tho. And at 2:00 if that's an ECC type ram, your processor might not like that ram. Some servers use BGA, or Ball grid array, commonly found in laptops where balls of solder are used to permanently solder the CPU into the motherboard. That particular board was probably made in 2009. It has gone to price of about $1000-2500 it was one of Alcatel's workhorses back in the day and I don't know what they use nowadays, and yes. I haven't seen a server that uses an AMD cpu. Red team don't kill me please. Also, for all curious people there, here's the part number: Alcatel-Lucent 3CM02859CMAJ03 - NBRZAM. P.S: I'm not certified since I'm still at high school.
That package from Ingrid was so sweet!
The problem with 0 on the end of a ruler is that the ruler wears down and then does not stay accurate. You see this especially in drafting rulers. Having said that, I want my rulers to start at zero on the end and I can just replace them
t-1...24 phone lines, 1 receive, 1 transmit twisted pair. e-1 similar, but 30 channels (slightly higher bitrate). That's an interface card for telephony connectivity, for 96 or 120 phone lines carried digitally.
rchandraonline Also worked as a 2Mbit up/down data line before ADSL and fiber. Some places on the 'net still ask if your connection is "T-1 or faster". Some voip services still offer a T-1 replacement box that let's you connect your expensive PBX to their service instead of paying for a real T-1 line from a local telco.
The acatel switches are somewhat obsolete but still actively used in military applications as the primary backbone switch array for various larger scale networks, in process of being phased out. Similar to Cisco 7606 routers. Hate the acatel cli language, not even close to a derivative of Cisco or unix, at least what I remember of it.
Judging by E1/T1 ports this Alcatel Lucent thing is a cellular RBS site router. And yeah, it basically puts oldschool GSM E1/T1 traffic through GE. Propably it can also support 3G and LTE traffic.
Haha... like the cheat sheet rulers... My Casio FX82A stil has Xc=1/2pi Fc written inside the battery cover in case I couldn't remember it in the exam 30 years ago...
Adafeuit or it's founder has detailed instructions for doing reflow soldering using a kitchen (electrical) skillet. This kickstarted box is basically the same technique in a cruder form factor but with automation.
I don't pirate my cable TV. I sometimes yell "ARRRRR" at the screen though...
All my piracy is over the internet, not the TV! :P
Those safety flashers appear to be something you screw onto the air valve on your tire. They flash when the car is rolling.
That blade server is most likely a trunk card for a main frame ip phone system. Such as 3 com makes a phone system server that has a blade server like that but its for trunking
I just love how you start your mail videos holding a huge knife😂 love your channel, keep up the good work!!
Trezor teardown, very interesting! When suddenly some enveloppe shows up and Dave does not want to open the Trezor any longer. DO NOT SEND STUFF TO EEVBLOG MAILBAG THAT IS NOT INTENDED TO BE TEARED OPEN. Tjeezzz
because i think he dont teared up for that simple electronic.. it looks like that if you know your mother language.. you dont want to explain on it :)) because i think i he is a good engineer for his businees care and youtube carrieer ;)
Actually, not putting the zero at the end is a good idea as any damage to the end of the ruler won't affect your ability to measure.
Also, the bike lights go on the valve stems on the wheels, so the motion of the wheels makes them light up. This should have been obvious from the name TireFlies.
Although I don't recognize the Alcatel/Lucent board exactly, I have worked for a project for them at 1997-1999 and that kind of boards look familiar. If it is a board from that project (or similar) it was (is) used for (fixed) phone telecom centers/operating centrales (not sure if the translation is correct), thus as expected not for end consumers. Lucent delivered many to Japan.
Most devices like these served as multiplexers and other processing for telephone lines.
I don't know how many have been made, but similar boards like these, I have seen (and worked with) in Neuremburg, Germany. There was a room with thousands of these boards connected together in 'walls' like 5 meters, 3-5 rows high full of such devices. In the development room in Netherlands we had hundreds of these kind of boards.
Btw, I'm a software engineer, so forgive my lack of knowledge or not checking details about the boards I worked with.
Thank you for reminding me about that Cleveland video 😂😂
According to the patent (US6467939) for those bike flashers, you're supposed to screw them onto the valve stem on your tires and the rotational motion of the wheels should make them light up. That is a pretty neat concept, but makes me wonder how they implented the blinkenlight circuit in such a small device. As far as I can tell from the diagrams, most of the device is just occupied by a spring and small weight which acts as the switch when it spins. All the patent says is it uses an IC on a PCB, yet it goes into great detail about how the springy contacts turn it on. I'm guessing some sort of astable oscillator combined with a single shot to limit how long it's turned on for, but I dunno how they'd fit caps sufficiently large to produce an RC time constant long enough to keep it on that long or give it that low of a blinking frequency.
Guess I need to read up on tiny blinkenlights solutions now cuz this has piqued my curiosity.
Googling any names or numbers on it is always a good start.
This is the 60th year NuK's been in business, and there is a website where you can order custom soothers. He probably got that one direct since NuK is based in Germany.
The fibrous insulation in the ReflowR (Product of South Africa) is Roxul.
"you don't need a qualifications to do electronics at all."
I loved it. I am also a zoology student and dev regularly.i love this channel ❤️❤️.keep it up.
Now, now, now...Detroit has been making a major comeback...Matter of fact was just there the other day for lunch and amazing. The "D" has come a long way...it has a LONG way to go, but at least they are making the comeback!
if you haven't tried it, google translate lets you use your camera to translate actual writing. i did this at my hostel one night for a guy that wrote in Chinese on the whiteboard, he was looking for a group to go out with that night. i was able to translate to English for him and he went out with a group that night. ive even had conversations with people using the voice translate feature on it too. black magic indeed, but a vital tool in an international travelers business.
13:34 Hmm, it look like the filament is intact on that? Although worryingly black pattern on the glass but the filament seem to be ok and such a working B/A tube.
At 12:23 - "IFF Radio Destruct Switch Box" model BC-765 was used in the B-17 (Flying Fortress), B-24 (Liberator), B-29 (Superfortress). Here is a 360 image of the bombardier station in the B29 where you can see the unit in situ: www.nmusafvirtualtour.com/cockpits/WWII_tour/WWII-15.html
We have used Linear Tech uModules (LTM...), they are really reliable.
Somebody connected over-voltage to its input once, the uModule heated up so much that it soldered itself off the board. But it still _worked_ fine after we have soldered it back on. (We really should have put fuses on all outputs.)
Dave, the card you were questioning about at around 1:20 is a DSU/CSU T1/E1/J1 quad port Wan expansion card made for what appears to be an IP edge router.
At a young age I was fascinated on electronics, then got into girls and stopped, but now cos of the internet, I’m back into it and learning more 😊 cos the old school magazines were great, but limited 🤔
I love the Reflow Heater. I do this with a crepes hot plate from the supermarket. Works fine for me and I think this heater should do it's job too.
The Alcatel/Lucent telecommunications processor that you disassembled is a rack controller which is a management server which in this case is for a TDM(PSDN) Phone switch. From what i can tell it's for an older form of Fios as the newer units are powered by xeon processors. The unit probably still works as Alcatel/Lucent units are have been upgraded by many Telecoms over the last few years and the old units are being pretty much tossed.
Old video but the P ram is mostly useless as it's fully buffered registered ecc ram and possibly chipkill as well (only works in servers with mainly xeon cpus and even then it might not be compatible )
with second 8+1 row for redundancy typically known as chip kill technology, so you can have a full dram chip fail and the module will still continue on without crashing or recover from 2 bit fault without crashing the system as both top and bottom 8+1 rows have the same data with buffer chip in the middle to manage everything and allow crazy ram sizes into the 1TB+ range
Those flashers, go on the tubes, on the fill valves.
I also, wnet back and watched all of the video, in the archive! Enjoyable days!!!
You could use your flir camera to check heating area of this "reflow oven".
TBH Something bloated with off the shelf solutions at no expense spared are not what I would say "look at the amount of engineering" to, I'd rather say it's under-engineered. What it is is over-built to avoid any engineering not absolutely necessary. Nothing wrong with that of course, engineering hours are expensive, but call it what it is. Something that has a lot of engineering gone into it is something where all requirements are fulfilled without any overshoot at the lowest possible complexity level and cost. Something is over-engineered when R&D spent an undue amount of time engineering to lower complexity or costs when the total cost of the entire production would have been lower with less engineering and thus more of a "no expense spared" agenda using expensive off the shelf parts.
In short: Over-engineered != Over-built
Your voice is the best Dave!
Even better in 2x speed.
You could pirate Foxtel back in the day with an off the shelf set top box. I believe the codes were distributed (illegally) by sim cards sold at swap meets and markets. Foxtel only changed the codes every 6-12months so it was a viable option.
22:00 You put them on the valve caps or as valve caps on the wheels. The spinning keeps them on so you get nice big circle of lights.
I inquired at my local stationery shop, but they didn't have a letter opener like yours.
Telecom cards often have different pin lengths to allow a controlled shutdown.
I love those IC insertion holders at the end, Wouldn't it be brilliant to have those in production for home projects or even for a better ic holder, production costs would kill it before it got off the ground. Fantastic idea though.