I think I can speak for everybody here when I say don't worry about the length of your videos. You are either into this kind of thing and are going to watch all the way through (like I do on all your videos) or you're going to change the channel really quick. Just go as long as you think it needs to go. We're all right behind you watching ☺️
Great video. Here are my suggestions, first two are about the low pass filter: 1: You care about time-domain, so you should use Bessel alignment (not Butterworth, although the roll-off looks more attractive, it's resonant, so every 'bump' leaves ringing...), and really get that step response to settle without overshoot. As close to critically-damped as you can. 2: Also, avoid x7r in the frequency-dependant parts of the filter - they don't have linear capacitance vs voltage - you need c0g / np0, and they're big when you need a really low corner frequency. Use arrays of them (as it's easier to achieve the capacitance ratio you'll need for point 1). 3: Consider that 'chopper stabilized' also means 'discrete time'. It's a sampled time system, albeit one sampling over quite long intervals. You'll need a *passive* low pass in front of it to reject signal that might otherwise alias. (because if it does, it will invariably end up all over your base band). Consider that you want as much rejection ratio as you can achieve from half the chop rate up, and especially to suppress each harmonic of the chop frequency. (so, yes, you have to worry about VHF-band behaviour, or, what happens to your op amps at VHF through UHF when you're mostly aiming for low frequency. Worry about unexpected resonances because of things like capacitor resonance. 4:You're trying to avoid making a self-mixing superheterodyne radio receiver - anything beating against itself will end up shifting itself down to right where you don't want it (near 0 Hz). So this means you want all the 'linear' parts of your circuitry to really be linear. (consider what happens in non c0g/np0 dielectrics with voltage...). 5: I have heard that 78xx/79xx fixed voltage types are not particularly great at being low noise - have been told variable types like LM317/337 etc yield lower noise. Could you see if they do? Would *really* love to see whether any of the above made much impact (especially if you could measure it!) - or even better, address why I'm wrong about any of those. Great work!
It’s really awkward to use 78xx/79xx parts when you can get purpose-made low noise regulators. OTOH, modern op-amps have good PSRR, so that regulator noise may turn out to be irrelevant. It always has to be tested in the real circuit under desired load.
im being honest here guys. i felt dumber and dumber the more i watch his videos. it is up to a point where i can understand him but i felt like he is a magician with all those results
Fascinating to see. I've been caught out by battery noise before, you can't trust that chemistry stuff. Oh, and I love the bicycle based terrier launch system, I'd try it myself except I've got a fat border collie that won't fit in a basket!
What a thoroughly enjoyable video. Yet another reason to love the 7805, the toasty hero of the digital world for so many decades! Be interesting to see he noise from those drop-in switcher replacements we're supposed to be stuffing into our vintage gear these days to avoid baking all those elderly caps... (I was exploring noise performance of power sources from a very early age. As a kid, I had a Radio Shack 65-in-1 electronics project kit. It had a little solar cell, and one summer's day I put the crystal earpiece that came with the set across the cell's terminals to see if I could hear anything from the sun. I sat in the field outside the house and - yes! Every so often, an odd, short burst of noise! What new phenomenon had I discovered? How exciting! Further observations revealed that instead of obserivng some mysterious cosmic fusion process, I had found a way to eavesdrop on bumble bees as they flew across the face of the cell. Ah, well.)
This looks like manual soldering hell to me. I mostly watch your videos for their production quality, dark humor and the awesome German accent (fellow German here). I'd even watch you moving grass if it is presented in your usual style
Pretin one pad slightly(!), take part with tweezers and lay the part where it should be, hold it in place and heat that pretinned pad again, now the part is secured and you can do all the other pads.
@@FesixGermany Honestly that doesn't work anywhere near as well as you'd think it would, especially on IC packages, gives very mixed wicking results in my experience. The speed solder special is to just put some kapton on the part, and then tape it down in place while you hit some or all of the leads that are still exposed. Perfect alignment and contact with no goofy tweezer bs.
Soldering SMD resistors is much easier when you fill one pad with solder, then place the resistor with tweezers and solder it to that pad. Then, when it is placed fine, solder the other side.
It's nice to see that you're making full use of your CaSCaDS (Capacitor Sniffing Canine Deployment System) to sniff out rare components in the wild. We have a miniature poodle that was like that but his central guidance computer has become easily corrupted by nearby flowers and passing females. His glory days are over but not forgotten so we just let him lie by his charge port bowl and dream of former conquests in the field.
The best thing about videos like this Is the dogs They are so well behaved, and great searchers too! Well, and everything else too. Seriously, your videos are gold! Thanks for the hard work
I came here many months ago for the electronics content. However, you could be describing a tree growing for 30 minutes and I would watch that too. Thanks for bringing us excellent narration and overall production value.
This is my favorite video, Marco 👌 I like these project videos where you go from conception to design to build to testing-they're entertaining and educational. Please do more project videos!
I love this type of technical videos! Laser stuff and such is flashy and fun, but I prefer the ones that leave me amazed at all the things I have yet to learn!
What an awesome Video! Really like those almost-esoteric-nanovolts-measurement-things (TM). Tapping on the bench to change the output of a source by some order of magnitude, just absolutely amazing!
Loved the comment about the "absolute shielding fortress" comment. Even if this is a "low tech" project in the scope of the channel, I really enjoy these more accessible long form videos. Keep it up!
To whoever is interested in changing the bandwidth to adjust this circuit for other types of measurements, that cascaded filter is actually called Multiple Feedback Low-pass Filter, not Sallen-Key Low-Pass Filter. Also note that the first stage has a very gentle roll-down starting at 6 Hz, while the second stage is set at 10 Hz with a little bump at this frequency. I suspect that Marco wanted to combine the gentle roll-down of the first stage with the bump on the second stage to provide more or less flat response over the whole frequency of interest? Nicely done :)
Ah, yes TH-cam Premium I don't have to pay for... I love these longer kind of videos althought I don't grasp everything you talk about but I would like it no other way. love your channel. truely Underrated for the content you provide.
I loved the video. I am mesmerized by what you are able to achieve. Also, the trip to the forest and your commentary puts a smile on my face. Thank you!
Thanks Marco, another great video. You have a LOT of new toys, the MDO (with Tek probes), the 2002 (!!!), the 5700A looks finished (looking forward to that video), the Advantest.... You've totally fallen down the voltnut rabbit hole, but what's even more worrying is you have a spectrum analyser and you mentioned a VNA in this video. I only hope you meant Volt Nuts Anonymous, otherwise it's only a matter of time before you go full "The Signal Path".
More of these style videos please.. CNC and Laser were fun, but this is where your story telling style shines.. Where else a concept like leakage current sounds so fun..
Have you seen the difference in views between videos like this piece of art and the well made CNC videos? Pearls before swines dude, pearls before swines... kids these days just don't know the value of zeros anymore...
seeing you open your JLCPCB package is making me wish more that mine was here already I know its been less than a week since it shipped but the suspense is killing me
Really cool video! When I do the kind of electronics I do... I round to the nearest volt and hope for the best. If my oscilloscope cant measure it, its basically quantum foam.
my opinion on how i feel about the more low tech videos: dude i dont know wtf is going on i can only read half of these things, i am a programmer but you are very interesting to listen to and i delude myself into thinking that i am learning some stuff
I'm just a hobbyist Marco. You are light years ahead of me! But I get excited when you make a new video about your 8-digit toys/ I mean measuring devices & other cool items. You are the Frankenstein / Tesla of electronics! Ha, ha ha!👽 You rock! 👍📡
Finger heat resistance or FHR is about delta 10 K /s for a maximum duration of 8 seconds. If the thermal resistance of your components to your fingers isn't high enough you are allowed tweezers. I should definitely add this to the Fingers Welt compendium as a nice addition.
I dont know what your video is about, but i like your vids annyways because i like the way youre telling us what youre doing and of courese youre humor :D
About half a year ago, I got the ts80 (non p) and I am really impressed, how it handled soldering to large ground planes on a 4 in 1 esc. It's better than my cheep soldering station, that was almost the same price, but bought locally.
god your voice is so soothing, came for the TS80 soldering iron review, everything else speeds over my head at mach 9.6, certainly enough to lose many ppms heh
Another way of bringing down noise, is to actually cool down the surroundings. aka, make a cool cell of some sort. Also to bring down the noise a little more, a 4th order filter can be done with one opamp. Although, to safe the hassle, I would just make an active 3rd order followed by a passive 1st order lowpass.
@@reps Repeated thermal shocks due to rapid cooling to single digit temperatures sure won't improve the quality of any electronic component used. Meanwhile keeping it permanently at such temperatures or building a new board for each experiment seems slightly expensive.
Your videos, and this hobby, makes me feel like a kid again. Out in the sandy back lot playin marbles for highhhh stakes. Thank You. :) (and I dig the humor)
These videos always tempt me to try to get back into electronics. But electronics requries money and brain cells, and I haven't got enough of either to spare.
Brain cells can grow - and you can get *most* important parts for free if you know where to find them. I've pulled hundreds if not thousands of parts - I've even run into some precision components and high-value MLCCs that when I checked their price and performance, I had to go to the loo!
I am doing 1/f (very low frequency noise) measurements on MOSFETs for my phd and let me tell you, it's a niche area in the academia world as well! We have constructed (almost, more rnd needed!) our own measurement setup for this purpose and we were faced with the same problems as you!
Just a small tip - when you're soldering SMD resistors/caps - put some solder to one pad on PCB first, then place resistor/cap on top of that pad, solder resistor/cap on that side holding it with tweezers and then solder the other side of resistor/cap. In this case resistor/cap will not be trying to run away.
As casual suggestion... The composition of the copper alloy used for PCB tracks, and the solder itself, at one point will become the limiting factor...
Here's a tip for keeping SMD components in place when hand-soldering: Use a helping hands soldering aid. Extend the arm all the way out in one direction, and point the alligator clip downward. Put a piece of stiff wire or a needle in the clip. Move the arm so the needle is slightly below the level of the SMD part, and place the needle on top of the part. Even the smallest parts can be held in place this way. You may have to put some shrink tubing on the alligator clip jaws, to allow it to snugly hold the needle.
I used to work at a cal lab, the 1 volt standard was kept inside a tank of liquid nitrogen. couldn't tell you about its design, I was not about to take it out and look. betting would have been a sure way to get fired fast. And I love all the test equipment you have there, would love to come over and play with it, be like a kid in the candy store :)
Terrific! I had just read the entire "10k gain low-noise 0.1-10Hz amplifier" thread on... that forum, and have been thinking about building something. Thanks for sharing this work! I learned some things. These are challenging problems.
Interesting narrative. If I might make a suggestion on soldering any SMD. [1] First hold the SMD down across its planned pads, with a tapered (flattened ) wooden stick from a Cotton bud:, (The Fibre tools for that work well too if you want to spend the money). [2] Then tack one end with solder in place to the pcb. [3] Then solder correctly the other end [4] Then reflow the other end to correct soldering standards. Wood has the advantage that it won't melt, it's won't allow static damage and is disposable. If you're concerned about thermal expansion physically stressing the component then let it cool before doing the reflow [4] upon the tacked joint formed in step [2]. Cheers from Down under
Also given the way the PBA moves around while your working on it A local Chain store in Au (Coles) have 150mm X 150mm silicon matts ($2) with a hexagonal pattern that holds small work well. These are Chinese made so I guess something similar is available everywhere.
When soldering smt parts do this: Add solder on ONE pad. Hold the part with a tweezer with left hand. With right hand reflow joint quicly while pushing part in to the molten solder. Then do the rest of its pads. Do resistors first, followed by successively larger parts. Rotate board to alwalys have the part to the left of the soldering iron and its pad(s). JLC will sell you a stencil for real cheap, if you want to reflow the board. "Chip heater" ovens from China can be really low cost too. For one off boards oven reflowing boards is usually does not save much time.
Holy crap, I don't even know about electronics other than positive/negative cables and voltages xD but your videos are always fun, informative and carry a great sense of humor. I think you should work at nasa or stuff like that.
Give a raise to the person who implemented chapter timestamps on TH-cam
Bless
@@M4XD4B0ZZ Perfect for ad placement wouldn't you say?
I think I can speak for everybody here when I say don't worry about the length of your videos. You are either into this kind of thing and are going to watch all the way through (like I do on all your videos) or you're going to change the channel really quick. Just go as long as you think it needs to go. We're all right behind you watching ☺️
I absolutely love the tactical good boy deployment
Wow, I could overcome my distaste for dogs if he could tell us where to get the terrier launch system!
Great video.
Here are my suggestions, first two are about the low pass filter:
1: You care about time-domain, so you should use Bessel alignment (not Butterworth, although the roll-off looks more attractive, it's resonant, so every 'bump' leaves ringing...), and really get that step response to settle without overshoot. As close to critically-damped as you can.
2: Also, avoid x7r in the frequency-dependant parts of the filter - they don't have linear capacitance vs voltage - you need c0g / np0, and they're big when you need a really low corner frequency. Use arrays of them (as it's easier to achieve the capacitance ratio you'll need for point 1).
3: Consider that 'chopper stabilized' also means 'discrete time'. It's a sampled time system, albeit one sampling over quite long intervals. You'll need a *passive* low pass in front of it to reject signal that might otherwise alias. (because if it does, it will invariably end up all over your base band). Consider that you want as much rejection ratio as you can achieve from half the chop rate up, and especially to suppress each harmonic of the chop frequency. (so, yes, you have to worry about VHF-band behaviour, or, what happens to your op amps at VHF through UHF when you're mostly aiming for low frequency. Worry about unexpected resonances because of things like capacitor resonance.
4:You're trying to avoid making a self-mixing superheterodyne radio receiver - anything beating against itself will end up shifting itself down to right where you don't want it (near 0 Hz). So this means you want all the 'linear' parts of your circuitry to really be linear. (consider what happens in non c0g/np0 dielectrics with voltage...).
5: I have heard that 78xx/79xx fixed voltage types are not particularly great at being low noise - have been told variable types like LM317/337 etc yield lower noise. Could you see if they do?
Would *really* love to see whether any of the above made much impact (especially if you could measure it!) - or even better, address why I'm wrong about any of those.
Great work!
It’s really awkward to use 78xx/79xx parts when you can get purpose-made low noise regulators. OTOH, modern op-amps have good PSRR, so that regulator noise may turn out to be irrelevant. It always has to be tested in the real circuit under desired load.
I love these longer videos. They are so *mesmerizing* to watch. Keep making more of them, please! Thank you. 🤗
k
Call it sophisticated porn, for volts nuts !! Thanks for that, was a pleasure :-)
It's even dangerous. I lost track of time
@@reps fiber slm printer or a nd:yag laser video ?
@@rca168 Same here ! No joke !
Love your new "special" gloves xD 3:09
actually made me burst out laughing lmao
Not sure if they are actually low noise optimized... Would think they are more for very noisy operations
@@Mrfoobaer gotem lol
im being honest here guys. i felt dumber and dumber the more i watch his videos. it is up to a point where i can understand him but i felt like he is a magician with all those results
"Any sufficiently advanced technology is indistinguishable from magic." I present to you Marco, The Merlin of Electronics Wizardry. :)
I don't even completely understand electronics yet, so. It is what it is you know.
Never was so hesitant about hitting the like
@@AppliedMetaphysician or in German words Magie = Physik/Wollen ( rough translated Magic = Physics through determination)
@@alainfelger93 muss man wissen ...
Fascinating to see. I've been caught out by battery noise before, you can't trust that chemistry stuff.
Oh, and I love the bicycle based terrier launch system, I'd try it myself except I've got a fat border collie that won't fit in a basket!
have a fat australian shepherd, can confirm
TERRIERS DEPLOYED!!!!!!!!!!!!!!!!!!
_Dispatch War Rocket Ajax!_
"you can't trust that chemistry stuff."
Words to live by.
What a thoroughly enjoyable video.
Yet another reason to love the 7805, the toasty hero of the digital world for so many decades! Be interesting to see he noise from those drop-in switcher replacements we're supposed to be stuffing into our vintage gear these days to avoid baking all those elderly caps...
(I was exploring noise performance of power sources from a very early age. As a kid, I had a Radio Shack 65-in-1 electronics project kit. It had a little solar cell, and one summer's day I put the crystal earpiece that came with the set across the cell's terminals to see if I could hear anything from the sun. I sat in the field outside the house and - yes! Every so often, an odd, short burst of noise! What new phenomenon had I discovered? How exciting! Further observations revealed that instead of obserivng some mysterious cosmic fusion process, I had found a way to eavesdrop on bumble bees as they flew across the face of the cell. Ah, well.)
11:55 launching homing dog-missiles :)
Locked on!! Deploy Flare!!(Drop snacks)
Naw, not reliable, too much collateral damage (brown chunks of burnt rocket fuel at the road side)
Alternate title: The Art of Electronics Chapter 8 in a Nutshell
Noted, I'll be reading into this further (I have that book...)
@@KomiyanVTsame :) quite the treasure of a book indeed
Dropped everything to watch this. Few things are as soothing as some nice low low digits... what a Balsam für the Seele.
This looks like manual soldering hell to me. I mostly watch your videos for their production quality, dark humor and the awesome German accent (fellow German here). I'd even watch you moving grass if it is presented in your usual style
please make more of those, incredibly interesting! Ressources about high precision, and more subtle analog electronics are pretty rare
You have an interesting way of soldering SMD stuff without tweezers but poking and shuffling around components with the soldering tip and solder
how else would you solder smd?
Pretin one pad slightly(!), take part with tweezers and lay the part where it should be, hold it in place and heat that pretinned pad again, now the part is secured and you can do all the other pads.
interesting, huh? thanks for not calling it appalling 😅
@@reps if it works it works
@@FesixGermany Honestly that doesn't work anywhere near as well as you'd think it would, especially on IC packages, gives very mixed wicking results in my experience. The speed solder special is to just put some kapton on the part, and then tape it down in place while you hit some or all of the leads that are still exposed. Perfect alignment and contact with no goofy tweezer bs.
Gosh! capacitors are already in season. I must go and have a look locally, though whether I'll find any is hard to say - it has been so dry recently.
up here in north germany as well, there are hardly any over 220µf
@@ToasterWithFur : This is called the "Fischkoppeffekt" !
(Gruss aus ehemals Eckernfoerde)
I just got back from a new harvest of capacitors last week in Estonia and I'm starting to get overstocked of these._
Soldering SMD resistors is much easier when you fill one pad with solder, then place the resistor with tweezers and solder it to that pad. Then, when it is placed fine, solder the other side.
It's nice to see that you're making full use of your CaSCaDS (Capacitor Sniffing Canine Deployment System) to sniff out rare components in the wild. We have a miniature poodle that was like that but his central guidance computer has become easily corrupted by nearby flowers and passing females. His glory days are over but not forgotten so we just let him lie by his charge port bowl and dream of former conquests in the field.
The best thing about videos like this
Is the dogs
They are so well behaved, and great searchers too!
Well, and everything else too. Seriously, your videos are gold! Thanks for the hard work
Man, your videos are making me want to get back to my metrology projects so bad. I must resist the urge.
Tools for the sake of tools. Love this video. Great mix of good stuff and the welcome humor to make all go down so well. Thank you!
I came here many months ago for the electronics content. However, you could be describing a tree growing for 30 minutes and I would watch that too. Thanks for bringing us excellent narration and overall production value.
The laser and CNC videos are impressive, but this gets me excited to work on my own electronic test and measurement projects.
Exactly. We like a healthy mix of approachable projects and sheer wizardry.
This is my favorite video, Marco 👌
I like these project videos where you go from conception to design to build to testing-they're entertaining and educational. Please do more project videos!
You can ramble on about anything and I'll watch and listen. Thanks for the vid.
Ahhh... new video to watch makes a great day. The capacitor hunting dogs at 11:57 made it perfect!
I missed you so much Marco (nohomo)
Just what I needed today
Missed his sexy voice aswell (fullhomo)
why the nohomo, there is no shame in liking that fat juicy engineering brain
+1
I love this type of technical videos! Laser stuff and such is flashy and fun, but I prefer the ones that leave me amazed at all the things I have yet to learn!
I mean, what's this all gonna come down to? What's his evil masterplan?
Your videos are never "too Long" and they also never will. I enjoy every second...
Love the CNC Stuff, but this kind of content is my favorite, I will happily watch you chase PPMs all day long!
I think it's under-appreciated how much work Marco goes into to give us cap plants.
FINALLY A GOOD VIDEO THAT IS WORTH WATCHING
this guy is the funniest guy on youtube. better than any comedian. and so knowledgeable aswell
Great content. I especially appreciate the super, super dry humor. Delivered with a straight face.
12:40 what's in the tube? chicken flavour heatsink compound?
It’s Hundeleberwurst
@@WurstPeterllives up to his name. It is true.
@@WurstPeterl actually the best!
That discord notification really caught me of guard. Sounded so real.
This was very interesting! Really enjoyed watching. Please don’t apologise for the duration or rambling. Just do it as you like :)
What an awesome Video! Really like those almost-esoteric-nanovolts-measurement-things (TM). Tapping on the bench to change the output of a source by some order of magnitude, just absolutely amazing!
Loved the comment about the "absolute shielding fortress" comment. Even if this is a "low tech" project in the scope of the channel, I really enjoy these more accessible long form videos. Keep it up!
To whoever is interested in changing the bandwidth to adjust this circuit for other types of measurements, that cascaded filter is actually called Multiple Feedback Low-pass Filter, not Sallen-Key Low-Pass Filter. Also note that the first stage has a very gentle roll-down starting at 6 Hz, while the second stage is set at 10 Hz with a little bump at this frequency. I suspect that Marco wanted to combine the gentle roll-down of the first stage with the bump on the second stage to provide more or less flat response over the whole frequency of interest? Nicely done :)
I had absolutely no idea what he was doing, measuring or trying to achieve. But I watched anyways. I love the accent and the subtle humor. :)
Ah, yes TH-cam Premium I don't have to pay for...
I love these longer kind of videos althought I don't grasp everything you talk about but I would like it no other way. love your channel.
truely Underrated for the content you provide.
I loved the video. I am mesmerized by what you are able to achieve. Also, the trip to the forest and your commentary puts a smile on my face. Thank you!
What an Amazing Electronics entertainer/educator.
Well done Marco!!!
All your videos are great. No matter if it is CNC, laser or electronic projects. Keep up the good work!
Man, if you only knew how many times I have to hit pause! Learning a ton whilst laughing my ass off. Priceless.
I've watched every one of this guys videos and I have no idea what he's talking about or doing 99% of the time. I think I just like his voice.
Talking about low noise and having a Pulse Demon reference in the thumbnail? That seems contradictory! ;)
I like seeing these projects, even if you consider them to be boring in comparison
its still fun
The CNC stuff is cool, but honestly, this is the content I am subscribed for. More, please!
Repson! Du bist wieder da :) Ich freu mich!
Thanks Marco, another great video. You have a LOT of new toys, the MDO (with Tek probes), the 2002 (!!!), the 5700A looks finished (looking forward to that video), the Advantest.... You've totally fallen down the voltnut rabbit hole, but what's even more worrying is you have a spectrum analyser and you mentioned a VNA in this video. I only hope you meant Volt Nuts Anonymous, otherwise it's only a matter of time before you go full "The Signal Path".
2002 was a loaner for 5700 verification is already back home - missing it a lot :(
11:58 Deploying ground-to-ground missiles... Done!
I think you mean: hound to ground deployment?
More of these style videos please.. CNC and Laser were fun, but this is where your story telling style shines.. Where else a concept like leakage current sounds so fun..
Have you seen the difference in views between videos like this piece of art and the well made CNC videos? Pearls before swines dude, pearls before swines... kids these days just don't know the value of zeros anymore...
I love the humour you put into your videos :-). Einfach geil!
I love these videos Marco. I will never make anything like this but I love watching the process, and I also love your humour
seeing you open your JLCPCB package is making me wish more that mine was here already
I know its been less than a week since it shipped
but the suspense is killing me
and also you probably didn't choose the absolute cheapest shipping like I did
@@runforitman In my experience, that option takes about a month. Did you get your JLC box yet?
Really cool video! When I do the kind of electronics I do... I round to the nearest volt and hope for the best. If my oscilloscope cant measure it, its basically quantum foam.
This is one of my favourite vids honestly
These videos are as (or more) interesting when compared to the CNC and laser stuff. I love this low noise series.
my opinion on how i feel about the more low tech videos:
dude i dont know wtf is going on i can only read half of these things, i am a programmer
but you are very interesting to listen to and i delude myself into thinking that i am learning some stuff
I absolutely love the low tech stuff - it's interesting to see what projects you are working on no matter the fanciness
I'm just a hobbyist Marco. You are light years ahead of me!
But I get excited when you make a new video about your 8-digit toys/ I mean measuring devices & other cool items.
You are the Frankenstein / Tesla of electronics! Ha, ha ha!👽
You rock! 👍📡
Finger heat resistance or FHR is about delta 10 K /s for a maximum duration of 8 seconds. If the thermal resistance of your components to your fingers isn't high enough you are allowed tweezers.
I should definitely add this to the Fingers Welt compendium as a nice addition.
I thought I was watching a 10 min video, until I was at 17 mins. Great to watch.
I dont know what your video is about, but i like your vids annyways because i like the way youre telling us what youre doing and of courese youre humor :D
What are those teaser chips? The "VFR 821806 B2028" I can't seem to find them... They appear to be older, maybe that is the reason? Please enlighten.
Those are custom VPG resistor networks 20k, 3k5, 20k, 3k5, 20k, 3k5, 20k, 3k5 :)
@@reps At the very least they look worth the price asked when you buy them new. Talk about expensive-looking parts!
Thanks for sharing! I love your work and dry sense of humor.
About half a year ago, I got the ts80 (non p) and I am really impressed, how it handled soldering to large ground planes on a 4 in 1 esc. It's better than my cheep soldering station, that was almost the same price, but bought locally.
Came for the topic, liked for the quality, subscribed for the yeeting small doggos from a bicycle basket while moving. 10/10
god your voice is so soothing, came for the TS80 soldering iron review, everything else speeds over my head at mach 9.6, certainly enough to lose many ppms heh
Another way of bringing down noise, is to actually cool down the surroundings. aka, make a cool cell of some sort.
Also to bring down the noise a little more, a 4th order filter can be done with one opamp.
Although, to safe the hassle, I would just make an active 3rd order followed by a passive 1st order lowpass.
least hassle= drown everything in liquid helium
@@reps Repeated thermal shocks due to rapid cooling to single digit temperatures sure won't improve the quality of any electronic component used.
Meanwhile keeping it permanently at such temperatures or building a new board for each experiment seems slightly expensive.
Your videos, and this hobby, makes me feel like a kid again. Out in the sandy back lot playin marbles for highhhh stakes. Thank You. :) (and I dig the humor)
These videos always tempt me to try to get back into electronics. But electronics requries money and brain cells, and I haven't got enough of either to spare.
Brain cells can grow - and you can get *most* important parts for free if you know where to find them.
I've pulled hundreds if not thousands of parts - I've even run into some precision components and high-value MLCCs that when I checked their price and performance, I had to go to the loo!
Very good video, as always.
Good stuff. I am having these exact same technical goals now. Thank you for doing my work for me. Best!
I watched this video when it was released, I had to search through some videos to see the bicycle dog release mechanism again 😄good stuff
This low tech stuff is much easier to digest for a noob like me. Thank you!
I am doing 1/f (very low frequency noise) measurements on MOSFETs for my phd and let me tell you, it's a niche area in the academia world as well!
We have constructed (almost, more rnd needed!) our own measurement setup for this purpose and we were faced with the same problems as you!
Interesting! Would love a peek if you publish something about that
So the original Title was going to be "TS80 vs Ultralow Noise Tester: 9V Battery vs. 7805 vs. LTZ1000"
Just a small tip - when you're soldering SMD resistors/caps - put some solder to one pad on PCB first, then place resistor/cap on top of that pad, solder resistor/cap on that side holding it with tweezers and then solder the other side of resistor/cap. In this case resistor/cap will not be trying to run away.
I was not ready for that "Noise" at the start.
That's some pretty crazy soldering job dude!
I really like your use of Grafana for long lab measurements. I need to check how to do it myself!!
As casual suggestion... The composition of the copper alloy used for PCB tracks, and the solder itself, at one point will become the limiting factor...
GREAT HUMOUR!!! and you are not bad with electronics.
This channel is underrated.
I wish you had some summary/conclusions at the end :)
This is getting more advanced than I can handle.
11:57
doggo.deploy()
I for myself prefer dog.deploy.seektarget(cat);
Here's a tip for keeping SMD components in place when hand-soldering: Use a helping hands soldering aid. Extend the arm all the way out in one direction, and point the alligator clip downward. Put a piece of stiff wire or a needle in the clip. Move the arm so the needle is slightly below the level of the SMD part, and place the needle on top of the part. Even the smallest parts can be held in place this way. You may have to put some shrink tubing on the alligator clip jaws, to allow it to snugly hold the needle.
Really nice video Marco!
Loving the lower level content!
I used to work at a cal lab, the 1 volt standard was kept inside a tank of liquid nitrogen. couldn't tell you about its design, I was not about to take it out and look. betting would have been a sure way to get fired fast. And I love all the test equipment you have there, would love to come over and play with it, be like a kid in the candy store :)
Terrific! I had just read the entire "10k gain low-noise 0.1-10Hz amplifier" thread on... that forum, and have been thinking about building something. Thanks for sharing this work! I learned some things. These are challenging problems.
Interesting narrative.
If I might make a suggestion on soldering any SMD.
[1] First hold the SMD down across its planned pads,
with a tapered (flattened ) wooden stick from a Cotton bud:,
(The Fibre tools for that work well too if you want to spend the money).
[2] Then tack one end with solder in place to the pcb.
[3] Then solder correctly the other end
[4] Then reflow the other end to correct soldering standards.
Wood has the advantage that it won't melt, it's won't allow static damage and is disposable.
If you're concerned about thermal expansion physically stressing the component
then let it cool before doing the reflow [4] upon the tacked joint formed in step [2].
Cheers from
Down under
Also given the way the PBA moves around while your working on it
A local Chain store in Au (Coles) have 150mm X 150mm silicon matts ($2) with a hexagonal pattern that holds small work well.
These are Chinese made so I guess something similar is available everywhere.
This was not a boring video. Its great. Thank you . More like this 😀👍
When soldering smt parts do this:
Add solder on ONE pad.
Hold the part with a tweezer with left hand.
With right hand reflow joint quicly while pushing part in to the molten solder.
Then do the rest of its pads.
Do resistors first, followed by successively larger parts.
Rotate board to alwalys have the part to the left of the soldering iron and its pad(s).
JLC will sell you a stencil for real cheap, if you want to reflow the board. "Chip heater" ovens from China can be really low cost too.
For one off boards oven reflowing boards is usually does not save much time.
Fascinating and beautiful filmed thanks for sharing. Regards Chris
Holy crap, I don't even know about electronics other than positive/negative cables and voltages xD but your videos are always fun, informative and carry a great sense of humor. I think you should work at nasa or stuff like that.
Very interesting stuff. Love these types of videos.