how did some one a hundred years ago figure out that the AC was actually flickering at 60X per second ??
@AddOhms3 күн бұрын
Math.
@campursarian19777 күн бұрын
Remember to check your shorts... 🩳
@AddOhms7 күн бұрын
😆
@tamaseduard51457 күн бұрын
👍🙏
@NN-wj3cw8 күн бұрын
👍👍👍👍👍👍👍👍
@billycen95018 күн бұрын
+2
@sveabryan91268 күн бұрын
Is one current safer than the other? For example, running a refrigerator in a or Air Conditioner in a shed that is hooked up to a power bank or generator.
@AddOhms8 күн бұрын
No.
@breedj111 күн бұрын
Great scope. But I thought this is more of a hobbyist channel. I do not think people who buy these kind of scopes watch this channel. So why bother making this video. Make one of a 12 bit Rigol or Siglent instead.
@AddOhms11 күн бұрын
Topics and intent can change over time. If Rigol, Siglent, or anyone else, offers to send something interesting to show off, I’ll show it. To date, they haven’t.
@Ste_Doc11 күн бұрын
bellissimo video complimenti, spero ne farai molti altri sull'uso dell'oscilloscopio .
@dalewheat15 күн бұрын
Sounds like a great piece of test equipment for the bench, but it’s sad that you have to still pay extra to get the proper Nixie tube display integrated :D. Thanks for an interesting and useful video.
@maxxgunner557317 күн бұрын
HIGH! VOLTAGE! Rock n Roll!
@alirezamirghasemi18 күн бұрын
keep switching regulators away from analog components
@johnf408518 күн бұрын
this was a good video. But the key thing, to me, is that you said R&S will release a firmware update to allow 4 FFTS on the MXO4. The MXO4 might be in my job's budget. & Ill poke around a bit & see if this firmware update applies to the MXO3 for example. EDIT: I just assumed the mxo3 exists, it doesnt. I dont see one on their site
@evgeniyevstratov119818 күн бұрын
words on this video's thumbnail persuade me that this is the most appropriate place to say that there are three grades of thermoelectric elements: pelty, Peltier, The Peltiest. I'm done
@dMajo_IT19 күн бұрын
I think your rummors are correct about the Zone button. I have heard others that will add the 4xFFT to the MXO4 also, very soon ;)
@andymouse19 күн бұрын
Oh hell I haven't seen that teardown ! I felt your pain ! This is great 'eye candy' but out of my league....cheers!
@AddOhms19 күн бұрын
The teardown was in an MXO4 full review when that one came out. I did not, however, include the dropping clip in that one.
@andymouse18 күн бұрын
@@AddOhms Lol ! :)
@KF7JO20 күн бұрын
Some of the high end oscilloscope manufacturers can display the waveform update rate on the screen (usually hidden by default), and some even report blind time as a percentage. Every digital oscilloscope manufacturer has fairly fast update rates in their nominal state (one channel, simple edge trigger, no math or advanced processing). But as soon as you add on a serial pattern trigger that gets executed as an offline trigger/search in software rather than running in hardware in real time with the acquisition system, the update rate drops several orders of magnitude. It would be awesome if the scope could draw the user's attention to this (highlight the lower waveform update rate and higher blind time), and also tell you why the measurement is slow and how to avoid the slowdown. For example, with an interleaved ADC, you may experience a slowdown when measuring channel 1 and 2 simultaneously. But if you move your probe from channel 2 to channel 3, which is connected to a different ADC, the measurement can run at twice the speed, sample rate, bandwidth, or waveform update rate. Oscilloscope manufacturers don't generally publish their high level block diagram architectures in the firmware, context help, user manual, or datasheets, and even if they did, most electrical engineers don't spend enough time with any one scope to demystify implementation details. Having the scope tell you "I can only run 2 hardware-accelerated math channels on channels 1-4; disable the extra math channels or move some of your probes over to channels 5-8 to get another 2 hardware-accelerated math channels. Or "Currently using SPI decode software trigger. Consider using hardware accelerated version of this trigger for faster measurements. <Fix>"
@AddOhms19 күн бұрын
I agree with your concept. I wrote it down as feedback, but I can already see the issue of detecting and making those suggestions. It would be interesting if scopes could show a block diagram and highlight where the bottleneck is. So maybe, it wouldn't directly say: "use channels 1 and 4 for Math2" but you could see that the "math block" is getting processed in software.
@KF7JO19 күн бұрын
@@AddOhmswaveform update rate is an awesome spec, but if an engineer can't figure out how to achieve that update rate in the lab, then it's just a marketing tool to get someone to buy a scope based on specs. And as we've seen, peak waveform update rate isn't a good predictor for misused waveform update rate. If you buy a scope capable of 10M waveforms per second versus 1M waveforms per second, you can't necessarily expect 10x faster waveform rate when you've configured both scopes in a non-ideal manner. That 10M scope may drop down to a slow software accelerated 6k waveforms per second, while the 1M scope may drop down to 100k waveforms per second, having not have had hardware acceleration to begin with, and the manufacturer got around that problem by putting in a faster CPU or wrote faster software algorithms. A fast update rate is useless if you don't know how to configure the scope for it. It's not a small undertaking to detect when there might be a better way to make a similar measurement. The more the software allows non-expert to use the scope optimally, the better. Sure, including a highlighted block diagram showing the current signal path would be a great start to that. I remember the RTP having both a hardware accelerated and software accelerated trigger decode mode, and (at the time) the GUI didn't make it very clear which was which, so even an experienced T&M AE would have a hard time remembering how to configure the faster measurement, let alone the electrical engineer in the lab whose also juggling the software control and quirks of their DUT, their probes, and the rest of their complex test setup. But hey, at least we're talking about how important waveform update rate is. Let's just make sure that the marketing claims gets translated to real world lab results. Now about that SCPI recorder...
@AddOhms19 күн бұрын
Sigh. You’re right. Where is that SCPI recorder at…😉
@klausfortschbeck836917 күн бұрын
Very nice conversation here. Thanks for the input. I work with R&S as a Sales Engineer for the Oscilloscopes. My feedback yet is that we have a very fast Scope even with functions like math, meas or even track. Within the MXO you always have access to the information how fast the Scope currently acquires the waveforms (even with calculated blind time) PS: in our RTO and RTP class we indeed also have a Hardware CDR for Triggering which doesn´t slow down so much
@BrianHensleyRULES7 күн бұрын
Appreciate hearing your feedback and i'm listening ;) some good ideas! I run scope design at another big scope company...
@Psi11720 күн бұрын
So ... the display of MXO-4 has resisted to the shock?
@AddOhms20 күн бұрын
Yes. There was not even a mark. The display wasn’t shocked, but I was.
@Psi11720 күн бұрын
@@AddOhms Wow! This is very honorable for R&S. In a lab you can touch the screen of an instrument by mistake with various objects, and is very comfortable to know that some of them can endure such shock.
@AddOhms20 күн бұрын
I mean, it’s just a LCD. Surviving a drop of a few centimeters isn’t the key takeaway about the scope.
@neteagle2k920 күн бұрын
What a beautifull scope ! BTW I'm crying at the 27k€ price !
@AddOhms19 күн бұрын
I saw a distributor that had the entry level model listed for only $15k! That’s almost 50% less!
@neteagle2k914 күн бұрын
@@AddOhms it's a bargain :-) !
@NeneRomanovaBGC29 күн бұрын
Why is so much of electronics just picking random value components?
@AddOhms29 күн бұрын
Because in engineering there is no best or perfect answer. There are always trade-offs to consider. Some are critical, some are not.
@technical5880Ай бұрын
am adicted to this channal.
@lockercoin3693Ай бұрын
nice vids
@fjonesjones2Ай бұрын
Great informative Video many thanks... just subscribed.. 🥳🥳🥳
@dreamfly555Ай бұрын
FQP30N06L is obsolete? What's a good substitute?
@AddOhmsАй бұрын
DMT6009LCT
@gedeon1980ytАй бұрын
what is the difference between a voltage regulator and a zener diode?
@AddOhmsАй бұрын
Voltage regulators actively (and accurately) regulate voltage. Zeners are passive, so they drift under various conditions. Watch: Voltage Dividers as Regulators ?! | AO #22 kzread.info/dash/bejne/X595ypKNic2_iag.html
@lostmyhareАй бұрын
Since you mentioned the 78xx and 79xx rectifiers around 2:25:00 I wonder if you know the answer to this... power supplies found in some of the macs have a C78N05 used for regulating -5V output from the supply. But this part isn't well known today. Two supplies I've seen these in are the TDK 699-0153 (looks like Apple PN) and the Astec AA16251 (both are also very similar to the GS supply except -12V is not an output so GS supply can be used in their place). Trying to find a replacement for the regulator but am not sure what would be correct. Is 78N05 a negative input/output like you said is true of the 79series? I believe I probed a working supply (been a while so maybe not) IIRC I found -6V on pin2 and -5 on pin3 and p1 tied to ground. -6.3V seems a tad low for -5 out but whatever. This would also not follow the 78xx/79xx naming convention. Any idea what the N in the middle 78N05 indiecates? I know the trick to have positive regulator output negative voltage by moving ground, but the boards don't appear wired in that way.
@AddOhmsАй бұрын
No idea. But Google searching it seems to confirm it’s a positive regulator.
@TheOleHermitАй бұрын
Very cool! Been struggling with most of these issues, while trying to design my 2nd PCB/1st 4 layer PCB. 72 year old U of YT student. 🙄 Thanks to the KiCad developers for their efforts to make makers' lives easier. 👍
@EngineerMikeFАй бұрын
That this video gets right to the point (except for the moss joke) & has only 62k thins up out of 3.7M view's says a lot about the "average" YT watcher, so lazy they won't hit a like button to save their soul.
@fredrikviklund5067Ай бұрын
Hi there, hello! :-) Just wanted to say I appreciate the edited subtitles!
@Ravi-ot6xjАй бұрын
how does a fan turn in a single direction on a ac current?
@AddOhmsАй бұрын
induction.
@bflmpsvz870Ай бұрын
Dreamy. Need to win in lotto today.
@SunilSundar2 ай бұрын
Why are you using the symbol for the ATmega168A-AU in your schematic instead of the ATmega328A-AU? Thanks
@AddOhms2 ай бұрын
The pinout is the same. The difference is memory.
@DeadsupraEE32 ай бұрын
I feel personally attacked in that last part. 😡 I was just typing in the comments "when is v9 out" when that part played.... 😥
@AddOhms2 ай бұрын
So far, their major releases usually come in the first calendar quarter of the year.
@halcyonramirez64692 ай бұрын
Why is it bad for the supply to short the ground? Is it because it damages the ground? If this were the case?
@AddOhms2 ай бұрын
It damages the supply and anything between it and ground. Shorts are bad.
@halcyonramirez64692 ай бұрын
@@AddOhms why does this damage the supply?. in my head. current flows from source to ground. why would having no resistor damage the supply?. is ground not just a way to get the current flowing?.. im genuinely perplexed because having strong pressure on a hose doesn't destroy the faucet. so having voltage with no resistor how can it damage the source?.
@AddOhms2 ай бұрын
Current flows in a closed loop. Ground is not a thing, it is a reference point and a return path for electric fields. When a short circuit happens, nearly infinite current flows causing everything to heat up, meaning the smallest resistive device in the circuit is going to burn on. Usually a transistor.
@brandon_gb2 ай бұрын
Still the best explainer video of ac and dc to this day.
@alejandroperez53682 ай бұрын
Fillet line command was already available in KiCad7
@AddOhms2 ай бұрын
Interesting. That's two features now that I missed in 7.
@2ATactical_CEO2 ай бұрын
This is really cool. I’ve always used an LcR or VNA to take capacitor measurements. Interested in this talk :)
@AddOhms2 ай бұрын
bald.ee/mlcc2polymer to sign up for the webinar on April 17, 2024.
@Hristian1232 ай бұрын
I knew it! Engineers and bald guys can not be trust!
@court23793 ай бұрын
Almost like there is a reason to wear safety glasses
@darklordzqwerty3 ай бұрын
Hakko solder sucker, expensive but worth it.
@AddOhms3 ай бұрын
Doesn’t do well for surface mount d-paks attached to a ground plane.
@bald_engineer3 ай бұрын
Thanks to everyone who played along on April 1st. Although satire, everything in the video is true!
@castlecodersltd3 ай бұрын
I thought you reminded me of a politician ;-) Keep up the good work
@231ujwalvarma23 ай бұрын
I don't care i just want to see bald engineer
@mightypez3 ай бұрын
Wait... what else is a lie???? Should I question my long-held beliefs? Are transistors a fad? Did Nicola Tesla really invent the cybertruck?
Пікірлер
Thank you!
how did some one a hundred years ago figure out that the AC was actually flickering at 60X per second ??
Math.
Remember to check your shorts... 🩳
😆
👍🙏
👍👍👍👍👍👍👍👍
+2
Is one current safer than the other? For example, running a refrigerator in a or Air Conditioner in a shed that is hooked up to a power bank or generator.
No.
Great scope. But I thought this is more of a hobbyist channel. I do not think people who buy these kind of scopes watch this channel. So why bother making this video. Make one of a 12 bit Rigol or Siglent instead.
Topics and intent can change over time. If Rigol, Siglent, or anyone else, offers to send something interesting to show off, I’ll show it. To date, they haven’t.
bellissimo video complimenti, spero ne farai molti altri sull'uso dell'oscilloscopio .
Sounds like a great piece of test equipment for the bench, but it’s sad that you have to still pay extra to get the proper Nixie tube display integrated :D. Thanks for an interesting and useful video.
HIGH! VOLTAGE! Rock n Roll!
keep switching regulators away from analog components
this was a good video. But the key thing, to me, is that you said R&S will release a firmware update to allow 4 FFTS on the MXO4. The MXO4 might be in my job's budget. & Ill poke around a bit & see if this firmware update applies to the MXO3 for example. EDIT: I just assumed the mxo3 exists, it doesnt. I dont see one on their site
words on this video's thumbnail persuade me that this is the most appropriate place to say that there are three grades of thermoelectric elements: pelty, Peltier, The Peltiest. I'm done
I think your rummors are correct about the Zone button. I have heard others that will add the 4xFFT to the MXO4 also, very soon ;)
Oh hell I haven't seen that teardown ! I felt your pain ! This is great 'eye candy' but out of my league....cheers!
The teardown was in an MXO4 full review when that one came out. I did not, however, include the dropping clip in that one.
@@AddOhms Lol ! :)
Some of the high end oscilloscope manufacturers can display the waveform update rate on the screen (usually hidden by default), and some even report blind time as a percentage. Every digital oscilloscope manufacturer has fairly fast update rates in their nominal state (one channel, simple edge trigger, no math or advanced processing). But as soon as you add on a serial pattern trigger that gets executed as an offline trigger/search in software rather than running in hardware in real time with the acquisition system, the update rate drops several orders of magnitude. It would be awesome if the scope could draw the user's attention to this (highlight the lower waveform update rate and higher blind time), and also tell you why the measurement is slow and how to avoid the slowdown. For example, with an interleaved ADC, you may experience a slowdown when measuring channel 1 and 2 simultaneously. But if you move your probe from channel 2 to channel 3, which is connected to a different ADC, the measurement can run at twice the speed, sample rate, bandwidth, or waveform update rate. Oscilloscope manufacturers don't generally publish their high level block diagram architectures in the firmware, context help, user manual, or datasheets, and even if they did, most electrical engineers don't spend enough time with any one scope to demystify implementation details. Having the scope tell you "I can only run 2 hardware-accelerated math channels on channels 1-4; disable the extra math channels or move some of your probes over to channels 5-8 to get another 2 hardware-accelerated math channels. Or "Currently using SPI decode software trigger. Consider using hardware accelerated version of this trigger for faster measurements. <Fix>"
I agree with your concept. I wrote it down as feedback, but I can already see the issue of detecting and making those suggestions. It would be interesting if scopes could show a block diagram and highlight where the bottleneck is. So maybe, it wouldn't directly say: "use channels 1 and 4 for Math2" but you could see that the "math block" is getting processed in software.
@@AddOhmswaveform update rate is an awesome spec, but if an engineer can't figure out how to achieve that update rate in the lab, then it's just a marketing tool to get someone to buy a scope based on specs. And as we've seen, peak waveform update rate isn't a good predictor for misused waveform update rate. If you buy a scope capable of 10M waveforms per second versus 1M waveforms per second, you can't necessarily expect 10x faster waveform rate when you've configured both scopes in a non-ideal manner. That 10M scope may drop down to a slow software accelerated 6k waveforms per second, while the 1M scope may drop down to 100k waveforms per second, having not have had hardware acceleration to begin with, and the manufacturer got around that problem by putting in a faster CPU or wrote faster software algorithms. A fast update rate is useless if you don't know how to configure the scope for it. It's not a small undertaking to detect when there might be a better way to make a similar measurement. The more the software allows non-expert to use the scope optimally, the better. Sure, including a highlighted block diagram showing the current signal path would be a great start to that. I remember the RTP having both a hardware accelerated and software accelerated trigger decode mode, and (at the time) the GUI didn't make it very clear which was which, so even an experienced T&M AE would have a hard time remembering how to configure the faster measurement, let alone the electrical engineer in the lab whose also juggling the software control and quirks of their DUT, their probes, and the rest of their complex test setup. But hey, at least we're talking about how important waveform update rate is. Let's just make sure that the marketing claims gets translated to real world lab results. Now about that SCPI recorder...
Sigh. You’re right. Where is that SCPI recorder at…😉
Very nice conversation here. Thanks for the input. I work with R&S as a Sales Engineer for the Oscilloscopes. My feedback yet is that we have a very fast Scope even with functions like math, meas or even track. Within the MXO you always have access to the information how fast the Scope currently acquires the waveforms (even with calculated blind time) PS: in our RTO and RTP class we indeed also have a Hardware CDR for Triggering which doesn´t slow down so much
Appreciate hearing your feedback and i'm listening ;) some good ideas! I run scope design at another big scope company...
So ... the display of MXO-4 has resisted to the shock?
Yes. There was not even a mark. The display wasn’t shocked, but I was.
@@AddOhms Wow! This is very honorable for R&S. In a lab you can touch the screen of an instrument by mistake with various objects, and is very comfortable to know that some of them can endure such shock.
I mean, it’s just a LCD. Surviving a drop of a few centimeters isn’t the key takeaway about the scope.
What a beautifull scope ! BTW I'm crying at the 27k€ price !
I saw a distributor that had the entry level model listed for only $15k! That’s almost 50% less!
@@AddOhms it's a bargain :-) !
Why is so much of electronics just picking random value components?
Because in engineering there is no best or perfect answer. There are always trade-offs to consider. Some are critical, some are not.
am adicted to this channal.
nice vids
Great informative Video many thanks... just subscribed.. 🥳🥳🥳
FQP30N06L is obsolete? What's a good substitute?
DMT6009LCT
what is the difference between a voltage regulator and a zener diode?
Voltage regulators actively (and accurately) regulate voltage. Zeners are passive, so they drift under various conditions. Watch: Voltage Dividers as Regulators ?! | AO #22 kzread.info/dash/bejne/X595ypKNic2_iag.html
Since you mentioned the 78xx and 79xx rectifiers around 2:25:00 I wonder if you know the answer to this... power supplies found in some of the macs have a C78N05 used for regulating -5V output from the supply. But this part isn't well known today. Two supplies I've seen these in are the TDK 699-0153 (looks like Apple PN) and the Astec AA16251 (both are also very similar to the GS supply except -12V is not an output so GS supply can be used in their place). Trying to find a replacement for the regulator but am not sure what would be correct. Is 78N05 a negative input/output like you said is true of the 79series? I believe I probed a working supply (been a while so maybe not) IIRC I found -6V on pin2 and -5 on pin3 and p1 tied to ground. -6.3V seems a tad low for -5 out but whatever. This would also not follow the 78xx/79xx naming convention. Any idea what the N in the middle 78N05 indiecates? I know the trick to have positive regulator output negative voltage by moving ground, but the boards don't appear wired in that way.
No idea. But Google searching it seems to confirm it’s a positive regulator.
Very cool! Been struggling with most of these issues, while trying to design my 2nd PCB/1st 4 layer PCB. 72 year old U of YT student. 🙄 Thanks to the KiCad developers for their efforts to make makers' lives easier. 👍
That this video gets right to the point (except for the moss joke) & has only 62k thins up out of 3.7M view's says a lot about the "average" YT watcher, so lazy they won't hit a like button to save their soul.
Hi there, hello! :-) Just wanted to say I appreciate the edited subtitles!
how does a fan turn in a single direction on a ac current?
induction.
Dreamy. Need to win in lotto today.
Why are you using the symbol for the ATmega168A-AU in your schematic instead of the ATmega328A-AU? Thanks
The pinout is the same. The difference is memory.
I feel personally attacked in that last part. 😡 I was just typing in the comments "when is v9 out" when that part played.... 😥
So far, their major releases usually come in the first calendar quarter of the year.
Why is it bad for the supply to short the ground? Is it because it damages the ground? If this were the case?
It damages the supply and anything between it and ground. Shorts are bad.
@@AddOhms why does this damage the supply?. in my head. current flows from source to ground. why would having no resistor damage the supply?. is ground not just a way to get the current flowing?.. im genuinely perplexed because having strong pressure on a hose doesn't destroy the faucet. so having voltage with no resistor how can it damage the source?.
Current flows in a closed loop. Ground is not a thing, it is a reference point and a return path for electric fields. When a short circuit happens, nearly infinite current flows causing everything to heat up, meaning the smallest resistive device in the circuit is going to burn on. Usually a transistor.
Still the best explainer video of ac and dc to this day.
Fillet line command was already available in KiCad7
Interesting. That's two features now that I missed in 7.
This is really cool. I’ve always used an LcR or VNA to take capacitor measurements. Interested in this talk :)
bald.ee/mlcc2polymer to sign up for the webinar on April 17, 2024.
I knew it! Engineers and bald guys can not be trust!
Almost like there is a reason to wear safety glasses
Hakko solder sucker, expensive but worth it.
Doesn’t do well for surface mount d-paks attached to a ground plane.
Thanks to everyone who played along on April 1st. Although satire, everything in the video is true!
I thought you reminded me of a politician ;-) Keep up the good work
I don't care i just want to see bald engineer
Wait... what else is a lie???? Should I question my long-held beliefs? Are transistors a fad? Did Nicola Tesla really invent the cybertruck?
Totally shattered 😢
The ONE power of 4…🤷🏼♂️