VFDs are awesome - Yes! Those 'Popsicle' LEDs at 16:00 are pretty cool too - never seen that particular case style before....
@JamesGarry10 жыл бұрын
André Silva At 16:00 the chap is showing a VFD, below which are some components that look like LEDs, and which have 'LED' written on the circuit board. Neat teardown, as I'm wondering about replacing the VFDs in an old desktop Fluke DMM - thanks Fran!
@emusan10 жыл бұрын
André Silva They have semiconductor junctions in them and the silkscreen says LED, so what are they if not LEDs?
@bigblumerstrikesback10 жыл бұрын
André Silva Fran knows what she is talking about. The LEDs are under the VFD. It even says LED on the silk screen.
@TheBananaPlug10 жыл бұрын
we used to call them tombstone leds, back in the 'old dart'
@Michael_Michaels10 жыл бұрын
André Silva vê-se logo que és português... Nabo!
@mikeselectricstuff10 жыл бұрын
ER1400 was about the first nonvolatile memory chip - needs a 35V programming supply!
@sarasifg10 жыл бұрын
Hey, Mike!
@kalhana_photography10 жыл бұрын
***** It's 1400 bits, or 0.000175 MB!
@redtails10 жыл бұрын
***** You can store a LOT on 175 bytes
@redtails10 жыл бұрын
***** XD you can run tetris from 140b of code. See www.140byt.es/
@kalhana_photography10 жыл бұрын
***** They must have designed the chip to be twitter compatible back in the 80's lol.
@BurnabyAlex10 жыл бұрын
20:30 hold down clip is asking to break off in a vibration environment to turn into a floating metal bit. 24:30 - nice bag diving
@redtails10 жыл бұрын
6:02 yeah it does look like an industrial device for monitoring fridge and freezer temperatures, where temperature needs to be maintained precisely
@JustinAlexanderBell10 жыл бұрын
I think a video on salvaging and powering VFDs would be interesting.
@ricoreyes604410 жыл бұрын
Love mail bag Monday and the impromptu teardowns. I'd like to vote for a VFD episode, I have a few I've scavenged but I haven't figured out how to drive them yet.
@nicknack12510 жыл бұрын
I have an old vacuum display laying around - it would be awesome to see you make a recovery/hookup guide for them!
@OneBiOzZ10 жыл бұрын
I would love to see a VFT video, last time i tried to drive one i got a nice pop and blew the heater! also common go for the full hour ... we wont complain XP
@electronicsNmore10 жыл бұрын
Another Christmas on Monday video! Good stuff.
@walterharriman10 жыл бұрын
I have a massive VFD from inside an dead stereo I took apart once. I would love to know how to power the thing up and maybe even use it for something.
@geeko32110 жыл бұрын
Great mailbag! Love the new knife! I hope it remains a regular part of the show!
@Kodachi12310 жыл бұрын
Thank You for opening my Box, Dave! :)
@MrKaizen7510 жыл бұрын
The 'Mark" output on the chopper amp is most likely for use with a roll chart recorder. The Mark output generates a little pulse when activated which makes the recorder pen move up and down quickly for about 1cm. This way you can mark the start of a new recording...
@EEVblog10 жыл бұрын
I figured it was something like that.
@batterydudellc96110 жыл бұрын
Yes do a follow up video! I was just thinking to myself I need to grab a displays like that to mess with because they look really cool.
@llingnau10 жыл бұрын
At 28:00 the math for the "solar roads" campaign is still there on the white board, loved that video.
@Lskaggs6310 жыл бұрын
Great mailbag video! The Eurotemp was pretty cool, I remember back in the 1980's we had temp readers like that one test equipment for the Dept of the Navy at NAS, Norfolk, Va.
@hendrikhendrikson294110 жыл бұрын
17:10 I clicked, but the video paused :P Thanks again for a wonderful mailbag with some really cool thingies!
@jenterl10 жыл бұрын
Dave, please do a separate video on the VFD and how to salvage and repurpose an old display. Thanks again for a great mail bag Monday.
@UberAlphaSirus10 жыл бұрын
I would love a fundamental Friday on closed loop control, PID would be a mind bend as it goes much further than an op amp:D
@redtails10 жыл бұрын
21:33 wow that's one hell of a big foil bag..
@Kingofkeks10 жыл бұрын
I would very much like to see a separate video where you explain how to salvage and power a VFD.
@g6qwerty10 жыл бұрын
Yeah the Florescent display in our car's dashboard for the millage went out at about 230,000 miles
@jeanious200910 жыл бұрын
On the pacemaker you can use those two wrist bands as ESD wrist bands since they have the same hook up button.
@thecooldude999910 жыл бұрын
That's not a knife. THAT'S a knife!
@HardDiskLover10 жыл бұрын
The followup on how to power up vacuum fluorecent displays would be great! I've got a lot of these displays which I would like to reuse and have no Idea on how to power them up
@redtails10 жыл бұрын
3:25 I do wonder how the inductive coil that communicates with the pacemaker is supposed to stay on? Well I guess we'll hear about it soon during the tear down, maybe it's not for pacemakers at all, or maybe it's actually close-range radio-communication, because I do believe modern pacemakers have some RF stuff in them (which led to the whole hacker conference meetings focussing their attention on pacemakers, as they had no security in them whatsoever). So I guess the round thing might just be an antenna that you need to place near yourself and not directly on yourself
@weilawei10 жыл бұрын
Stayed up all night waiting for this. ^__^ Did not disappoint. Keep up the great work! Love the show!
@maximilianmustermann817210 жыл бұрын
haha, I didn't wait for it that die hard, but I was in a "happy expectance" mode :) just curious, what did you do all night long? :D me: study
@Coolkeys200910 жыл бұрын
Interesting mailbag. It would have been nice to see that industrial controller powered up(if it was working), may be the bar code scanner as well to see the display.
@ChipGuy10 жыл бұрын
ER1400 the oldest serial EEPROM as far as I know. Uses a supply voltage of -30V (yes, minus). Hence all those transistors and 4000 series stuff there to adapt the voltage levels. It was originally designed for storing 100 different TV frequency settings of 14 bits each for top notch TV sets in the 70s. There is another GI chip going with that, also using that weird -30V NMOS technology.
@CookingWithCows10 жыл бұрын
Have you ever thought of getting a surgeon's "Videoendoscope" ? Like they use to look into a human's body through a tiny cut in the skin. They are flexible and you can look very closely into things that you don't want to break/tear apart but still want to look at the components.
@eternalblue211910 жыл бұрын
Also good for tearing down humans without doing any damage
@redtails10 жыл бұрын
You'll actually be surprised how thick endoscopes are. Ask anyone that underwent an endoscopy and they'll tell you they're usually about a centimeter thick. They're that thick because they usually also have tools inside them to take samples..
@nikkershaw47859 жыл бұрын
thought he said Gatorade 29:24 but it's actually Gate Array :)
@ChrisNorris10 жыл бұрын
wow the coin validator 24:30 brings back memories. i used to work for the company!
@DanafoxyVixen10 жыл бұрын
Hi Dave! you said if we get on our knees begging you might do a video on VFD displays! I hope you do! I love VFDs, I think their sexy and a nicer alternative to the LCDs and LED displays most new comers use in their projects. I think many see how VFDs work as voodoo, an explanation on their working and some demonstrations might help SAVE THE WORLD from the grip of display blandness. keep up the good work! :3
@youtubasoarus10 жыл бұрын
That's not a knife... oh wait, yup, that's a knife.
@kalhana_photography10 жыл бұрын
Check out the Daewoo capacitor at 13:54
@OpheliaY194810 жыл бұрын
I love how in your last mailbag Monday thingy the knife intro was a Crocodile Dundee reference :-D *thumbs up, as always*
@stevecoatesdotnet10 жыл бұрын
I'd like to see a video on VFD displays :)
@mikelemon510910 жыл бұрын
1:00 the moment you can say "This is not a knife, THIS IS A KNIFE"
@bean259410 жыл бұрын
I'm the one who sent in that pacemaker communication box. Looking forward to the teardown.
@ThePlacehole10 жыл бұрын
Yes, Please make a "How to salvage a VFD" video. :)
@flaviaduna10 жыл бұрын
Hi Dave, We are living in a strange world where people like to watch other people opening mail (or even eating :)), but I miss the old you.
@gregc360010 жыл бұрын
Hi Dave just a note on the Eurotherm Controller. Its a very versatile bit of equipment where i worked we had a number connected to a horizontal furnace controlling "zones" of heaters so they ramped up along the funace to control the melt of the material inside they can be connected to a pc and using their software you have a graphic indication of the temps and zones along the furnace and can control as you go and you can program each one separately to control a ramp and dwell for each zone
@FennecTECH10 жыл бұрын
LOOK at that crystal flapping in the breeze! one good gust of wind and the thing will blow away!
@TheChipmunk200810 жыл бұрын
Those open multiturn pots used to be quite common in electronic tuned tv sets in the 80s . I wonder if they'd borrowed them from a TV manufacturer? The knobs look similar to TV channel tuners on british tv sets of the time too... so they may be off the shelf items. (They were used to adjust the tuning voltage on varicap pushbutton tuners)
@maximilianmustermann817210 жыл бұрын
YEAH! Finally I get to rate video before I could have possibly seen it! :D So now to my review: the episode of mailbag monday was great... Especially because of the new knive!
@powder-phun94910 жыл бұрын
Do a video on VFD-s!
@blueskiesflyer10 жыл бұрын
This knife is a classic :) great choice Dave!
@kyoudaiken10 жыл бұрын
BBC Metrawatt is propably a doughter company of BBC (Brown Boveri & Cie., Mannheim) in Germany. Part of a workforce (BBC, SIEMENS, Kiepe, DÜWAG), they built the older Subway-Trains (B-Wagen) in Düsseldorf and Duisburg. This was around 1986-1989. The trains are still in service!!!
@PinBallReviewerRepairs10 жыл бұрын
Wow and I thought my knife was big yours wins. :) It would be cool to get some stuff just to tear into it. I always did like getting into electronics.and seeing what was inside of them.
@Elfnetdesigns10 жыл бұрын
I have a temp control module that is read in Fahrenheit and is half that size with LED display. It came from P&G factory that makes Tide Soap.
@cartti10 жыл бұрын
VFD video yes please! :) I'm doing diagnostic work every now and then on one of mine that doesn't work and i'm sure it would greatly help me out.
@ElectricEvan10 жыл бұрын
He is right about the knife thing. A knife that size in Massachusetts would be illegal.
@akshaykeertisharma180110 жыл бұрын
It'll be so cool to switch on that vfd! I've used one by noritake and they are awesome!
@thatguyb3rt10 жыл бұрын
I have a VFD in a clock I built from a kit and the thing uses 70 volts, Crazy!
@spongebob728510 жыл бұрын
I'd like to see the VFD video!
@denismckenzie19915 жыл бұрын
I have a cat named Flynn, and anytime I open my bedroom door he runs inside my room. He's pretty quick so I can never prevent him from getting in. Every time he gets into my room I think of you 😂
@TheAdminist10 жыл бұрын
Dave, please do a video on VFDs!
@midnight_commander10 жыл бұрын
I was really hoping the foil bag would just be empty...
@albinekb10 жыл бұрын
Thumbs up from just seeing the huge knife again @ the thumbnail!
@opablo_gm10 жыл бұрын
I don't hate it when I get the wrong hole (24:44) jaja
@HHHarry0910 жыл бұрын
METRAWATT was mostly taken over by the BBC in 1968 and then was called "BBC METRAWATT". After the merger BBC ASEA in 1988, the company was renamed to "ABB METRAWATT". 1992 ABB METRAWATT was then sold to Röchling. Röchling then bought Gossen GmbH, Siemens and combined both into "Gossen-Metrawatt". Since 2005, the company is owned by private equity firms.
@Ivo--10 жыл бұрын
The video is looking a bit blurry today Dave. (And it's not my youtube setting :) )
@nickkinnan748510 жыл бұрын
Would love to see a VFD salvage video!
@GogetaX110 жыл бұрын
is it me, or 12:29 capacitor is blown? :) lets fix it!! :)
@bensthingsthoughts10 жыл бұрын
Yeah PB screwdriver are the ultimate tool. Greetings from Switzerland.
@redtails10 жыл бұрын
6:23 XD huh, that's almost my zipcode, that's where I live, wow that's a first
@EcProjects10 жыл бұрын
Haha, 33:21 would get a whole other meaning if you didn't watch the video ;)
@matthew3p6 жыл бұрын
EcProjects LOL
@robehickmann10 жыл бұрын
The tempriture controller is a kiln controler.
@ryanwinklevoss10 жыл бұрын
You should make some tutorial videos on how to get started in electronic engineering and circuit design. I want to get into it but i don't know where to start.
@zeuss19410 жыл бұрын
These eurotherm controler, a lot of not so new ( 1970/80) machine use this kind of controler, I work in a wire factory and they are everywhere ! Looks this one is a "all in one" so you can control the heat management on several stage on the screw (check wikipedia "extrusion"). Nowaday T° sensor goes straight into a specific PLC which manage solid stat relay for the heating element. Sorry for my english
@smbrob10 жыл бұрын
BBC makes a lot of high quality stuff like meters and other professional electronics in Europe
@DrewWalton10 жыл бұрын
Dave, don't be sorry about anything. Your videos are awesome, manual focus be damned.
@MACPCOSX710 жыл бұрын
Would really like to see a video with the display powered up.
@1ManWrenching10 жыл бұрын
Heck yeah I'd love to see a how to power up a VFD! Please do.
@uriituw10 жыл бұрын
GI made some cool chips that were used in the Intellivision.
@masonringbinder68410 жыл бұрын
Nice retro temp controller for your reflow oven with its ramp and dwell functions perhaps??? (If it worked and you had the instructions)
@ratdude74710 жыл бұрын
The temp controller I find interesting... I'm working with a similar device for my senior capstone project (re-engineering the low-current interface of an Inresa Vacuum Smelter).
@Pow3llMorgan10 жыл бұрын
That's not a knife, that's a short sword!
@devilmastah10 жыл бұрын
put the temprature controller on your smd toaster
@spongebob728510 жыл бұрын
Just found that knife on Amazon! there's a whole range of them. did you use the new camera dave?
@WillowFox10 жыл бұрын
I work with payphones, if you want one, I would have to find out how much it would cost to send a 40lb payphone (with extra board and for you to rip apart) if you are interested lol
@maximilianmustermann817210 жыл бұрын
btw. I noticed that the video was quite out of focus (on you) at times, example: 22:00 is that filmed with the new camera or did I just play closer attention now that you got a new camera and that going out of focus is a normal thing? It's not really bad or anything, but I couldn't help but notice.
@EEVblog10 жыл бұрын
Didn't you see my overlay message at the start of the video?
@maximilianmustermann817210 жыл бұрын
EEVblog oh, nope, because I am watching your videos through VLC (I'm currently away from my main machine, and this mobile computer is far too under-powered to view KZbin videos in HD inside the browser. But in VLC it runs like a charm, all one has to do, is paste the youtube url into it and well... miss the annotations :D ). Overlays don't work there. Well, never mind then :) PS: oh well great :D those weren't annotations, now I noticed it too. Sorry, but I just missed that message at the beginning of the video, not sure why^^
@terrencestewart737310 жыл бұрын
EEVblog I did not see your overlay message either!
@uriituw10 жыл бұрын
It would be cool to see tear downs of medical devices.
@snipes125999910 жыл бұрын
Would love to see a video of powering up the vacuum florescent display.
@Ollie897410 жыл бұрын
As my old mate Crocodile Dundee would say "Now that's a knife."
@dtiydr10 жыл бұрын
Yes! I have the exact same solder vacuum sucker. Really good btw, no recoil.
@mecha20710 жыл бұрын
Thumbs up for the knife. Epic
@acolombo10 жыл бұрын
Where's the old coin validator video?
@rizkyp10 жыл бұрын
Why is the video blurry?
@TheChipmunk200810 жыл бұрын
I'm adding my weight behind the VFD video (or mayhap even series?) Covering the basics maybe, and the characteristics of the required drivers and such like. I have a metric arse-tonne of them from old VCRs etc. :-) And I'll echo Fran, I've not seen that particular flattened shape of LED before, looks like a hybrid between the flat ones much beloved of cheap stereo equipment manufacturers in the '80s and a standard 5mm LED
@LukasBonny10 жыл бұрын
My Oscilloscope is from Goerz Metrawatt. It's basically the same as the HM 205-2 but in grey/black color. I don't know anything else about this company.
@ilanmagen10 жыл бұрын
checkout the contemporary product size compere to the controller on this video
@picobyte10 жыл бұрын
Yes the knife is overkill.Packages usually don't have jaws ;)
@STRATOS13PAO10 жыл бұрын
that vacum display tutoreal would be nc ;-D good video dave
@linkingaj10 жыл бұрын
With a knife like that I won't complain about false advertising; Good on ya, mate
@Campjeep6910 жыл бұрын
Crocodile Dundee, love it!
@1986tessie10 жыл бұрын
Nice stuff, I like playing with dated stuff lol no matter if you break it lol.
@happy54321010 жыл бұрын
love the new knife!
@gorak900010 жыл бұрын
Heh, love the solar freakin roadways calcs still on the whiteboard!
@TheStevenWhiting10 жыл бұрын
Assume the "that's not a knife. This is a knife! " joke had been done? :)