EEVblog

[@Homeaudioacademy]

Mark here - from Control Devices. Thanks Dave for a showing the joystick. Just to answer some question in the comments and clarify what whats shown in the video. 1) The joystick is mainly used in industrial applications, such as garbage trucks, excavators, marine steering. But Dave is also right, they do sometimes get used in aviation and simulation. In aviation they are used to control drones, in simulation, usually game style for aircraft, but simulations is also a massive market in mining, this is where you could find this device. 2) Yes as Dave said the device is proportional and switched. It has a potentiometer wiper setup as well as digital directional switching. When you look at the PCB you will see a black carbon track (Proportional) as well as gold (Switch) tracks. We also do non-contacting Hall Effect versions. 3) Yes we do other outputs, Voltage output, Current output, PWM to drive solenoids directly., USB2.0, CANopen and J1939. If you wanted one we can do RS485 or other serial modes. 4) Joysticks in aircraft, Yes fly by wire is usually done with a force sensing joystick. We do those too. As it happens a force sensing joysticks are also popular in the defense applications such as target acquisition on armored vehicles. 5) The feel that Dave described in the video is called an Aligned Seat. As Dave said, there are slight indentations in the gimble mechanism that assist the operator to follow the X or Y axis in a straight motion. 6) Price ranging from $550 to about $1700 for industrial joysticks $1500 to sky's the limit for Defense. Thanks again Dave!

[@EEVblog]

Home Audio Academy Thanks Mark, teardown video will be released next.

[@Nikola16789]

Thank you!

[@DusteDdekay]

Nice! It's telling a lot about a manufacturer that they are not afraid to show the guts of their products, and tell openly how it's done, it is a display of self-confidence in ones work, and inspires confidence in others as well.

[@jtqthetieman]

+Home Audio Academy Don't mind me if this sounds childish but, I'd love to wire a couple of those to a game controller. The controllers we have available for game consoles and gaming PC's today are made with terrible joysticks.

[@Homeaudioacademy]

Jason Queen This a totally valid question. Yes you can wire these up so that they can be used with a PC. In fact we do a USB2.0 version that shows up on a PC as a HID. Alternatively you can make your own interface using a PIC 32. It has a USB library. The joystick can be interfaced into that. Depending on which base you use in the joystick you can have a straight forward Potentiometer output or a Hall Effect 0 to 5V output. I have used this joystick to play simulation games before.

[@MrSnrub1982]

Fond memories of building all those Talking Electronics kits as a teenager. The TE Clock that I made back then has been running 24/7 for decades now, and still keeps accurate time. Not bad for a bunch of 4000-series logic on a hand-taped phenolic PCB :)

Sagan: "Let me open it. Let's see what's in it, shall we?" Sagan becomes just like you when it comes to opening mailbag. :)

[@42222]

Hazet is one of the most expensive and high quality tools you can get in germany...

[@black.phoenix.]

Reply to an old post that no one going to see - I have the same Screwdriver Kit with the handle and the individual screw drivers isolated to 1000V but from Felo. Been using it since 2009 and its still going strong. It also sometimes make people who I work with turn their heads and ask to see, it's an excellent conversation starter.

[@platincortex5329]

@@black.phoenix. I see

[@cogsinister100]

What a great Mailbag, that Weston meter was just beautiful, and the adorable sagen opening his present just made my day :)

[@mikew642]

Dave You videos are insanely full of information, and I am currently going through ALL of Talking Electronics, this guy Collin, your mentor, ALSO has a MASSIVE amount of information on his website!!!! My brain is overloading with what I have learned in the past 2 weeks!!! finding scrap electronics all the time now and salvaging everything possible!!!!!!!!!!!!!!!!!!!!!!!!!!!!! THANK YOU BOTH!!!!!!!!!!!!!!!

[@chaddles623]

That Hazet VDE driver set is a Re-Branded Felo Drivers, very nice though, Hazet is very very expressive in the US, but not so much in Germany,

[@andyhello23]

Hazet is an excellent german brand. You know its quality if its got the name hazet on it. Not for home user really, as quite more expensive then home users usually pay. Hazet tools are excellent, not surprising though you never heard of them before. Like i said, normally priced out of the range of home users. Very good quality, those tools you were sent, would of been a fare price. I agree, the feel of quality tools, is far better then cheap tools, normally brought by us non industrial home users. Not surprising, you get excited by the look and feel of the quality of hazet tools. If you can buy(of course you were sent them free), hazet, you know you got quality. Out of most our price range. But like the saying goes, buy cheap buy twice. You know if you buy brands like hazet(germans have a few high quality brands like hazet), you know, they will be lasting you a long time.

[@arcadeuk]

I'm fairly anti (modern) apple, but the photo book looked very interesting. I do appreciate alot of (pre-iphone) Apple design. Very nice looking book

[@TheMrTape]

That's a big fail on the warranty void mechanism, when the entire thing screws off!

[@funkyant]

Yeah, I thought the same thing. In the end you could remove it with some pliers, but no way to know that until the deed was done!

[@possiblydavid]

I think the exterior part was actually a washer, although it came off with the screw. I think rotating the washer could have made it break loose from the screw and not actually allow you to rotate it that way.

[@martinda7446]

funkyant PLIERS?? On that work of art??? Oh gawd.

[@funkyant]

mart fart hahahaha. Maybe with a rubber band around them?? :)

[@bepowerification]

I'm a little late on this one but: if you get/buy a tool made in germany you should consider yourself lucky. the quality is awesome. its getting harder to get germany made tools these days but they rule. I am not talking about german companies selling chinese crap (there's a LOT of them now, german companies/GmbHs/LTDs with a very german sounding name selling china crap) - I'm talking about genuine made in germany stuff. best tools in the world.

[@K3POnline]

Dave, just a quick info about the Joystick. ist 4...20mA, nothing with "times 2" X2 is just a Label (see 18:40min, there is 4...20mAY2) I had to work with 4...20mA at my work, and the reason that it is 4...20mA is simple. ist called Life Zero, witch means that 4...20mA is = 0...100%, so 0% has to be 4mA. And that means that you can control your cable of any sort of broken wire, because if your not having the 4mA at the end your wire is broken. Sorry for the bad english, i´m from Germany and my technical english is not the best! Greeting Clyde

[@Homeaudioacademy]

The X2 and Y2 refer to an option we do that allows the joystick a two completely separate outputs per axis. Basically on that version the joystick has separate circuits so that if one goes down, you still ave the other operating. We use this in critical applications where a joystick signal failure could mean the potential loss of life or large sums of money. As you suggested the 4-20mA is very useful to be able to detect short or open circuits, we do this with voltage output too. If the machine control system sees a voltage or current outside of the specified range it runs a routine to return to a safe position or stops. This is very handy especially in large boom cranes, a short or open circuit could make the crane act like a helicopter.

[@smitty9306]

Dave thanks for the talking electronics website, wow so much to read. Jon

[@Michael_Michaels]

LOL Weston, The man!... xD That Weston Wattmeter belongs on a museum!

[@dorfschmidt4833]

Thank you Dave for making us (the audience) happy.

[@sebbef82]

I had a MDO3004 at my former employer, took me loads of time to convince my boss to allow it, saved me and my team loads of time during development, great unit!

[@turboslag]

Hazet is a top quality German brand. Famous for the Hazet Assistant collapsible tool trolley, well known to the VW Beetle and Camper fan boy community.

[@lsrx101]

I've acquired a couple of Hazet HV screwdrivers in box lots of random "things" recently. Very nice, well made tools. They're pricy here in the US, but worth it, IMHO. I'm scouring the couch cushions and watching for stray pennies to buy more.

[@binaryglitch64]

As a "yank" I just find it funny when you go off about our patriotism because like you I find it a bit overboard sometimes... but I often wonder if you Aussies are aware that Yank and Yanky is a term that Southern American's use as a kind of derogatorily term toward the Northern Americans over their still being upset about loosing our civil war. It's not considered offensive when Aussies use it nor baseball teams but it can be taken with a sour taste in the right or rather wrong context.

[@RossPotts]

1:40: Wow! Just when I thought I couldn't find any other sources of information. You pulled another one out for me.

[@laurancehayes991]

Firstly Dave keep up the good work, that tear down of the meter was nice as for the wire that came loose or even worse was flapping around I think we could cut them some slack as it hasn't failed in the last 70 years or the seal would have been removed already.... And it has survived modern day shipping lol enough modern stuff doesn't survive 👍

[@edcooper2396]

4-20mA industrial control gets around the issue of voltage drop on long sensor cable networks, thats why it's so common in SCADA systems.

[@sivalley]

Hi Dave! Concerning that Watt-meter - The four smaller bare terminals are for setting up high/low current mode as illustrated on the bottom right and left corners of that insert page. I'm pretty certain the two terminals with the +/- marks are the commons and the reason for the center detent is so that if you don't know your polarity you can have a safe 'off' position for the potential coils. The button is the actual 'on' switch. books.google.com/books?id=7s0oAQAAMAAJ&printsec=frontcover#v=onepage&q&f=false ;-)

[@msylvain59]

Putting wax seals on screws for warranty and calibration seals in very common in soviet electronics.

[@VaupellGaming]

I'd like to see a multimeter on that Wattmeter. Just to see if the resistance is the still up to specs considering it's analog from 1944.

[@Flumphinator]

We had an Elmo in my 6th grade science class that we used instead of an overhead projector. It was so new and cool back then!

[@fdutrey]

Nice electricians screwdriver set. You can use the little yellow knob as a palm swivel, without having to clip the handle, just like some of the micro screwdrivers.

[@CampKohler]

It's not flathead; Dave, it's slotted. Flathead refers to the shape of fastener head (a type flush with the surface), not how it's driven. Thus you can have a flathead slotted, a flathead Phillips, and so on.

[@strangersound]

Penny & Giles also make quality faders that end up in high end mixing consoles. :)

[@Nukle0n]

Really excited to see you take that Spectrum clone apart, I'd love to see how that thing looks inside.

[@robertcalkjr.8325]

Thanks Dave. That Weston Wattmeter looks like it came from a museum.

[@DjResR]

The rattle switch has a gold plated ball and a small spring that holds it in place or a gold plated spring and rod inside it.

[@marcus_w0]

OMG, Sagan is just too cute! "Let me open it. lets see, shall we?" Just like his old man ;)

[@Psychlist1972]

I've had one of those el-cheapo battery holders break at the tab.

[@ChrisPVille]

Aircraft simulation joysticks often have a lot more in the way of user feedback in the travel axes. The term is control loading. The idea is that with a system of pulleys (old-school) or loading motors, you can create the force curve that most closely matches a real, hydraulically controlled aircraft. Nowadays, aircraft use fly-by-wire control systems with similar "fake" control loading to provide the familiar cues to the pilot, such as preventing over-stress by increasing the loading on the stick and thus force required to move it at higher speeds.

[@jesperkleemann1333]

Hi. Oh my God, that ZX Spectrum is awesome, I am an old ZX user and would give an arm for that ZX clone. It is a cute boy you have. This is some of the best videos on the net. Greetings from Denmark.

[@kalhana_photography]

Had to rewind and watch 22:29 again lol

[@dtvdave1]

What probably kills the diode on the video output of the Sony CCTV camera is the voltage pulse from nearby lightning strikes induced into long video cables that connect the camera to its recorder(or multiplex switcher). Memphis is a big thunderstorm magnet (I worked there and had to fix enough stuff killed this way to know how bad it can get)!

[@waldsteiger]

hi dave, congrats to your mailbag. to a part making a living from opening free stuff people send you. for your and our amusement. brilliant. i would like to see you get thru all mail and be up to date. either as fast, hf or marathon mailbag. for giving something extra back to the people sending stuff.

[@abpccpba]

Hi Dave Good show as usual. Would you please point me and others to an explanation of steering diode used in the scan demo.

[@TheChipmunk2008]

Actually I remember that the International units weren't QUITE the same as some local units back in the first half of the 20thC, I remember the ohm in the UK varied by a very small amount (around 1% I believe) from the international ohm

[@TheChipmunk2008]

Inbox Demo Nope, it was 1.3% different. Try using google ;)

[@TheChipmunk2008]

Inbox Demo Nature, vol. 30, page 26 (May 8, 1884). I actually have it in a book i doubt you have (Electricity in the service of man, 1888) I would link to www.sizes.com/units/ohm_international.htm but that's on the internet, and always wrong, right?

[@Yannique1]

Inbox Demo Lost another argument? :p

[@TheRealSkurmedel]

You can read that book here apparently : D archive.org/details/electricityinse00wormgoog

[@martinda7446]

I was going to say that being derived from the volt and ampere, it made no sense the ohm could have any other value. But things are never that simple. Like the metre has a platinum physical standard sitting in a vault in Paris (before the SI unit was derived in a more scientific way) The ohm had various physical standards, some being wrong and ...well read it yourself, its a confusing history.

[@StuttgartHD]

Dave, you can open soon a museum with all that stuff from the mailbags :P

[@USWaterRockets]

The Technical Term for the Knight Rider Kit is a "Larson Scanner".

[@EEVblog]

USWaterRockets No, it's not, that's just what EMSL called it in 2007: wiki.evilmadscientist.com/Larson_Scanner The term "KITT Scanner" or Knight Rider scanner" has been used decades before that in countless magazine projects.

[@USWaterRockets]

That may be so. But by the same token, do you call where you live "Australia" or do you still call it "New Holland"? ;-)

[@frankbuss]

USWaterRockets I know what a Knight Rider scanner is, I don't know the term Larson Scanner. But might be because I'm old and I watched the TV series when I was young.

[@frankbuss]

Right, I know the the cylon eye, too. I even programmed it once with JavaScript to test the new canvas function some time ago: www.frank-buss.de/canvas/cylon.html But still, only movie experts would know it under the name "Larson Scanner".

[@Muscleduck]

That Watt meter is amazing. Too bad you didn't hook it up to try it out!

[@DavidHansen725]

Awesome stuff! Hazet used to make the toolkits for VWs.

[@kd1s]

Me, I had all intentions of putting together my Pixie QRP 40m transceiver kit together this past weekend. And stymied by a 3 prong to 2 prong adapter. The perils of living in a 115 year old house. Ordered a few off amazon, should have em soon.

[@CampKohler]

At about 4 pushes per second, it would take 2 months to do 20M pushes of the joystick button.

[@clyth41]

Another great video love your mail bag Monday's brilliant the cookie bit made me chuckle haha ,keep up the good work mate cheers from UK

[@hommadi2001]

Love your CERN shirt man.

[@VikasVJois]

Excellent video Dave. More enthusiasm than normal !

[@KingHenryVR4]

My favorite segment is still the dumpster diving, thanks to google doing this new 72p50 crap i'm stuck at watching videos at 480p

[@winstonsmith478]

For those handheld closeups, your camera's autofocus is way too slow. Can you set it to a center-weighted focus mode?

[@kingoftaurus]

EEVblog Dave, those battery hold downs are quite terrible and fail very often. I am an automobile electrician and in most cars these days you will find a battery hold down such as these in your key fob (the part that opens your door wirelessly). I would have to say that most of my repairs on those things is the battery hold down coming loose. They just aren't built for what they are used for. But hey $200 for some reflow.. Lol that's what keeps us mechanics in business.

[@JohnDoe-qx3zs]

There are cheaper store brand modular 1kV screwdriver sets. They have simpler mechanism (no breakable button) and easily fit for a toolbelt.

[@rizkyp]

Why is the video only 360p max? KZbin Still processing?

[@Elfnetdesigns]

hi Dave, where did you find the knife, I need a good letter opener here, lol

[@bikutoso]

This video scared me a bit at 6:27. I believed something was wrong in my house.

[@jauffins]

I may be slow, but does anybody have the episode number for the Sinclair teardown? I can't find it anywhere!

[@Paarrad]

Wow.. i have a f/1.8 lens.. so i have to use the 1.8.. Dave please, close the aperture a bit

[@EEVblog]

Oliver Reiprich It was on automatic exposure.

[@BassDrivenMassacre]

apple stole the book idea

[@UberAlphaSirus]

18:47, now thats a part number, you will know if you got that wrong in google .

[@joblessalex]

Guess you can say you got a mac book!

[@JaredReabow]

Hey dave what do you do with all the vintadge electronics you are given?

[@sleary7878]

Those joysticks are so obscene they should be pixelated out on the video :)

[@robertherberg9595]

A lot of your mail should be donated to a museum. Good stuff.

[@douro20]

The Sony one is an industrial camera. It would make a very good camera for a microscope.

[@scotshabalam2432]

Tribute devices to Apple should have fuses that are almost indestructible and can take thousands of watts without blowing.

[@lsrx101]

Dave, your videos are always a good bit of electronics porn, even though much of it is over my head. This mailbag was a double treat for me, with the Weston meter. I collect and restore vintage electronics, or "ancient" electronics in the context of your channel. Those Weston meters are surprisingly common, actually. Not really useful today, but I sometimes use a similar Weston voltmeter or milliammeter on my work bench just for amusement. They are quite accurate, well built and really nice to look at. They also make great shelf art in the lab. I see them at auctions and swap meets, often for less than $20 US in very nice condition. Cool stuff. Thanks for doing what you do. Cheers from Cleveland.

[@QuitProcrastinating]

My girlfriend always laughs her ass off when you moan to the camera like You did with the joystick. She still cannot get over the way You said "Yihua" and mimics it everytime I watch Your video. Keep it up it's hilarious.

[@VoidHalo]

Probably a bit late for this, but you should do a fundamentals friday video on diode steering. Or maybe I should just look up an ap note for it.

[@TheSentientCloud]

When I first started watching Dave's videos six years ago, I could have sworn he had a fetish for electronics, specifically multimeters/oscilloscopes. I stopped watching his videos for a while, and now I came back, and Dave has not changed one bit... he seems to be making it a bit more obvious now, though. But somewhere I missed the point where Dave had a kid. But "Sagan" damn, Dave chose the best possible name. I wish my dad was as cool as Dave. Mean, he DID at one point fix oscilloscopes, but this was before I was born. At least he bought me my own oscilloscope when I was 9... xD

[@TheRealSkurmedel]

Do you like the Julia Set as well?

[@TheSentientCloud]

TheRealSkurmedel I'm made up of all the Julia sets. :P John Ridley I was pretty certain that he did after a while. Mean, what with all his orgasmic moaning and all. To be honest, I kind of developed one too. And by kind of I mean really. If you look at videos of mine from about three years ago, lots of them were about my meter and electronics and stuff. I used to really be into meters, but then that stopped for a while, but I'd recently grown a strongish thing for scopes. xD

[@Cruisey]

Mandelbrot Set I had to give up reading your post, it just went on, and on, and on....

[@TheRealSkurmedel]

Mandelbrot Set Oh I forgot : D, I made a GPU Julia Set renderer... pretty rubbish precision though so you couldn't zoom too far :(

[@ForViewingOnly]

I know Dave said it already, but the Amp Hour episode with Bil Herd that he mentioned in the video is totally awesome! If, like me, you're mad about vintage computing then go check it out and enjoy.

[@ForViewingOnly]

...And looking forward to the ZX Spectrum clone video. How did they clone the Speccy's ULA chip, I wonder?

[@JohnKha]

"OMG, Dave, what is up with the quality!?", he said after coming here from your twitter page.

[@supersat]

A whopping 360p!

[@supersat]

Either KZbin hasn't processed the higher-res streams OR Dave is severely trolling us.

[@Chooseyouruniquehandlebyaddin]

its youtube

[@JohnKha]

Karl Koscher I think it could be both ;) twitter.com/eevblog/status/557344599018979328

[@101computerman]

John Kha doesn't bother me one bit as my internet can only stream in 360P so I didn't even notice :)

[@Ccs4646]

Do you have any ideas on what your going to use that Joystick with, Dave?

[@BenjaminGoose]

After all his sighing/moaning I don't want to know!

[@TheSentientCloud]

BenjaminGoose He sighs and moans with all of his "sexy" electronics. But that Weston meter? Oh I'd totally see where that's coming from... *drool*

[@Rashombo]

The dongshan sw 520d is not a cap its a ball switch, both cap like items seem te be switches. (vibration or ball sensors)

[@sarowie]

I love the "it had the send to Dave note on it for months" in the letter - lovely ironic. By the way: I think it´s grade to separate the teardown from the video. This video was already 50 minutes and as you said: Search engines love separate videos with tagging ;-)

[@richfiles1]

Man, gave me a major case of the feels when you opened this video! Very cool, getting to talk about and get something from the man that taught you and so many others! :) I can also vouch for the fact that the USSR completely redefined how BAD a keyboard could be! EVERY. SINGLE. ONE. of my Russian calculators have keyboards with the tactile feel of a moldy sponge! XD

[@miketel01]

What happened to the 60 FPS or what ever???? It ain't working for me

[@maximilianmustermann8172]

works well for me! Try chrome.

[@maximilianmustermann8172]

Thomas Schraven eeeewww....

[@Saint_Moonzy]

I tore apart a Magellan Map 330... Should have let you do it.

[@redtails]

38:10 LOL, Rile up those Americans :D

[@michaelhawthorne8696]

I posted a comment this morning around 6.30am, it has completely disappeared....Why?

[@gamccoy]

Good luck getting warranty work on that watt meter now.

[@dawn1berlitz]

its good to see a mailbag video after awhile i missed the weekly episodes

[@DusteDdekay]

Dave, please don't stop saying "pornographic" xD Hardware porn is hardware porn. ^_^

[@FlowersForYou629]

Pretty obvious who Sagan picks his phrases up from, "let me open it, lets see shall we."

[@TheManLab7]

"Yes! An old dead tree." 😂

[@metaedward8011]

Wow, that apple book + LED case looks so groovy. Too bad I'm the only die-hard apple fan I know. Oh well, I'll have to get myself one. :D

[@eternalblue2119]

I learnt a lot from the Talking Electronics books from Colin Mitchell too. Its a worthwhile investment to check his site out and get a few kits / read a few of his books. Keep the knowledge flowing.

[@DextersTechLab]

Boo, CERN tee ditched for a Commodore one!

[@griffgriffo9746]

I learned logic chips using his Digital Electronics Book,,,A very smart man

[@nicwilson89]

Best mailbag so far. Love it!

[@tarkbayraktar9000]

Sorry Dave, but the best part of this mailbag episode was happy moments of your beautiful son. Give my best wishes to him.

[@sycabara9229]

How much do you think that kilowatt meter is worth?

[@feieralarm]

Whatever it was, it's less after he took it apart.

[@Yannique1]

***** Don't turn it on! Take it apaaaaaart!

[@kingoftaurus]

Nothing, now that it's been opened.

[@sycabara9229]

kingoftaurus I highly doubt it's worth nothing just because of that...

[@mike7958]

I imagine it might be worth a little. Possibly even a Museum piece someday?

[@dwDragon88]

Damn, it's already finished rendering 1080! I wanted a low-res 2009 flashback! Well I've already commented and liked, guess I'll watch the video now. :)

[@cesaru3619]

14:54 superbly engineered but have no yaw... WAH WAH WAH

[@nakjojo]

Heck yeah Tektronix!! They are in my neck of the woods awesome products.

[@dvddmc]

Keep up the great work Dave and Bring lots more Pornographic electronics our way!

[@scotshabalam2432]

Those CCDs probably made nice images when they were new but they are left exposed durring the entire history of their life fading the optics. I would expect the outdoor ones or ones near windows go to bad imaging even faster since they can pick up direct sunlight on a reflected surface as well. There's a reason why cameras come with lens caps. It prevents scratching and keeps the exposure area dark which was good for the old chemical film and is good for CCDs too. If I were to engineer these cameras I would include an automatic lens cap and tint cap with a simple servos and warning systems that warn the security or maintenance service of bright light sources that have the potential to cause damage to CCDs because this is a problem that's never been resolved and continues to destroy security cameras as well as introduce exploits with bright lights and lasers from attackers.

[@Drforbin941]

Dave...Great video! Was wondering since your in with the guys and girls at Tek. Maybe would could get access to the schematics for a TDS540. They are not very responsive to us mere mortals! :)

[@pizzablender]

That is not a field coil... and will not be 2 milliohms with that thin wire. More like series resistors (temperature stable). Can't you put it in your X-ray machine?

[@trustthewater]

You have the cutest kid I've ever seen. Reminds me of myself when I was that age only he's a lot smarter.

[@ssh3mk]

Push forward, and the plane goes forward. Straight into the ground :)