TSP  

*Please note that my channel format, content and style will never change; this is regardless of subscriber count. The subscription can help engagement with unique vendors, NOT sponsored content. I can get sponsored content anytime, but I have not. The most important thing is content diversity and reach.*

Don't change this channel into something you're not comfortable with. The current format helped me start my career at Rohde & Schwarz, so I can't thank you enough. Maybe a few collabs with w2aew, eevblog, Ben Eater, and others that I haven't discovered yet to help boost the subscriber count?

Your channel and Mr Carlson's Lab are the only things that keep me coming to RU-vid. You have my respect and gratitude for everything you teach us.

One thing you could possibly do to bring in new people, is to perhaps start a 'project' series, where you'll design a SDR downconverter for example, with certain specs, go through the design phase, PCB design, assembly and testing etc. I think that will actually allow us to also engage in the topics, since most of us don't have > 3GHz equipment laying around, but SDR is something anyone can do! Of course you have to stay true to what you've always been doing, since this is how you've grown in the first place. Looking forward to see your ideas!

Shahriar,I have always wondered why your channel is not past the 200 to 300 k mark myself. I find the style you use and the explanations to be top of the class on RU-vid. There is nothing at all I would change about your channel. Simply the best RU-vid has to offer. No explosions and fluff, just good old methodical troubleshooting at it finest. I do not think it will help much but I will mention to my 12k subs to make sure they check out your channel (most are already here). I know time and money is a big contributor to the amount of videos you can produce a month. but quality over quantity is always a winner. Sad that the "vendors" prefer quantity............

"On this computer " proceeds to show ultra expensive old test gear used as a win xp mule 🤣

Multi part projects are always a joy to watch

iv'e been subscribed to your channel for like 5 years now, jumped in as soon as i found it :) even tho 90% of the time i have no idea what your talking about.. lol. but i have learned much from watching and can now identify a lot of RF components and how to measure stuff that i had no idea how to before!

First off, thanks for creating these videos. Very thorough. I'm trying to design jitter measurement into an embedded design and wanted to better understand your comment in this video about leveraging precision timing with a low-speed ADC to statistically measure RMS jitter over time. Any further elaboration would be greatly appreciated. Thanks again!

Any vendor that would ignore your channel because the subscriber count is a little below some arbitrary number must not be very serious about producing high performance RF instruments. That fact is also useful information to your viewers.

Shahriar :) The higher the frequency the higher the cost of measurement equipment 1-GHz is DC 26-GHz+ is the offering. (and that that's the problem for user engagement) Do some basic videos on transistor regulators, signal processing, mix signal topics using a signal controller, topics on DSP ect.. the problem with your statement about HF 110GHz videos is, it doesn't talk to the basic to early advance user (not even to those who have own "some" good equipment) it speaks to companies, companies doing 5G and other advance stuff (like the stuff you doing at bell labs), I challenge how this form of education is translated in the real world (for normal users to take home and expand on), if the equipment to experiment at will is a challenge alone to obtain. Everyone has access to powerful MCU platforms and a oscilloscope (100MHz) this alone is ground for some amazing content. Some random ideas.. 1) There's a lot of opportunity to run videos covering covering mix mode electronics, digital + analog design. 2) Magnetics, in this day and age, there's alot of knowledge gaps around SMPS design for magentics. see Ridley Engineering about magnetic misconceptions! 3) High precision circuit design, op-amps circuit design Dave did some good videos but that's only the tip of the iceberg. 4) If you want to do stick with RF then consider doing demos using sub 1-Ghz stuff. a basic AM radio would be cool? I remember some of your first videos, a discrete PWM controller using an op-amp and integrator.. that video alone helped me build and understand PWM controllers, I ended up building a SMPS and class-d amplifier controller a few years later.

Great Video and nice explanations. I think some more explanations like in the beginning of this video would make these topics and this way this channel more popular and entertaining. No details, just a simple graph does it most times. one thing that is getting better is that you explain your abbriviations which makes it easier to follow. No critics, just a suggestion. I hope for more videos like this one!

Start a 'secrets of 5G' series... nobody's digging into the physical realities on YT outside marketing fluff, and it's where the hotness is.

Really nice video as always. As far as suggestions, I can only join the other people here, maybe a project series on something might catch a few new subscribers, even if it is a fairly simple device I would watch it, since I know that you will do it right and teach a lot of interesting things in your own unique way while doing it. Another thing that atleast I would love to see is a labtour. But not necessarely the normal "show all your instruments" way but rather showing off your past projects, your parts storage, stuff like cable management and storage for all your testleads, etc. since your lab always looks so perfectly organized and clean without a wall of partsdrawers and random boxes of bits and pieces. Greetings from Germany

I do enjoy your current content, however a lot of it does go over my head. I don't think this audience needs another "What is a Diode" video, but some higher level RF fundamentals would be nice to explain things like how exactly up/down conversion, PLLs, bandwidth limit, ADCs, DACs, work. Your video on creating an amplifier (TSP #15) is fantastic.

Worked with this Infinium (Agilent DCA 86100A ) back in 2001 when it was out-of-the-box new (NEW ! ). After about a year of daily use, the soft silicone buttons became intermittent. Very annoying. After 4 years of use, the rotary controls developed issues. Extremely annoying. Also, rented the Agilent TDR plug-in (with active probe) for a month. Worked great on 5G pcb differential transmission lines (FR4 material). Lastly, my vote: keep emphasizing RF, micro Wave, and optical measurement domains. You're Duh Best !

im super excited for this, come on youtube process this .... if you only had the power of an 86100A :P

your content is the best of youtube, maybe what is lacking is the dissemination I will indicate to more friends in Brazil so that they also refer other friends, so we will always have good videos of excellent knowledge about instruments.

There is nothing wrong with those "simpler" videos. Many people could have done those explanation of general circuits and devices, but they did not - or at least not the way you did. Will keep advertising your chanel, as its content is allways excellent regardless of the topic. The suggested formula for vendors: equipment_price * TSP_subscribers * influence_on_acquisition

Please people, come on! Don't just watch, subscribe!

How is the picosecond delta t obtained? Is there such thing as a voltage tunable delay line?

What PCI USB card is used here? Thanks

what about a video on compressed sampling ? for analog to information conversion

I just gave you another subscription from a different account. Good luck, you are also on my patreon

Maybe try changing the format but not the topic, for example separate out parts that are more generic to this type of equipment into another video. So when someone is searching for wide-bandwidth oscilloscope this is the first result. RU-vid rarely promotes 30min+ videos unless it's very confident that the user is going to watch it anyway. Be less specific in the titles, like 'Agilent Wide-Bandwidth Oscilloscope teardown and repair' and put details in the description. You could try doing an 'explained/basics' or 'DIY' series, collaborate with other youtubers and do more measurements that benefit the everyday engineer or has the equipment to do.

The day after I read about Linux dropping floppy drivers I see a floppy drive on RU-vid. I bet if you repair or upgrade a piece of equipment using a RaspberryPi (like add a 4K display to an old scope) your subscriber count would change an order of magnitude.

I believe that something along the lines of intro to RF would get the attention of a lot of people. It's something a lot of electronics hobbyists know very little about. Perhaps doing a project people can do with cheap stuff, perhaps accessories for a cheap SDR or something like that, you have the advantage of being able to compare it to profesional/more expensive alternatives. Because as much as I love this kind of equipment, at the moment I can't justify the cost of most of what you show. Perhaps using more clickbaity titles, it's sad but it works, at least for views. On the other hand, the 'cheating' way, would be to ask a fellow electronics RU-vidr to ask their audiences to subscribe, if it limits your ability to get equipment I'm sure a lot of people wouldn't mind subscribing, it won't improve your views significantly, but your suscriber count could increase significantly. I know it's not the best way to get an audience that is truly interested in your channel, but could be a last resort. Thanks for the great content as usual, I always learn something from your videos.

mix some simple titles like micro controllers Programming and Arduino with advance subject like these video for engaging electronic hobbyist too

Greedy bastards. You should pull the "big man in Nokia labs" card. Observe them crawling back to you begging for forgiveness. Your channel is several orders of magnitude better than those of enlarged Australian egos, and similar.

Any company not willing to work with you are just plain ignorant.

I think you're misinterpreting the data RU-vid is giving you. The videos that are more popular might be more interesting to people because of the amount of educational content, not the level of educational content. While your channel has always been more focused on products than education, finding out that you want to focus even more on product reviews is disheartening. I had hoped you would choose the other path -- but do what you want, obviously.

Vendor Marketing HQ: - We should giveaway some units of our brand new VNA on youtube - Agree, is there any channel owned by a very good engineer with a lot of knowledge on RF which owns the required equipment to test it and compare it and audience who actually use this type of gear? - Yes, TSP, but it has less than 100k subs - Then no, lets give it to ElectroBoom and arduino diy channels.... Disclaimer: ElectroBoom is cool, i like him, used as a reference for high subs channels :P

Maybe weird and rare circuits? Or intro to high frequency electronics? A lot of us are self taught and the high frequency stuff seems like black magic. I feel like that would get a good chunk of subscribers.

I think that uniqueness of this channel is what prevents subs going up at a stable pace. You create unique but very advanced stuff. I consider myself advanced concerning electronics but still 50% of this content is rocket science for me. I think that for more subs You'd need to add more explenation to sophisticated stuff to encourage less experienced RU-vidrs to join Your channel. Now I think that they are afraid of interesting but high level (eg. block diagrams) videos. The length of Your videos is both good and bad - good for Your subscribers but "repelling" for newcomers that probably cannot stand first 10 minutes of NASA guy talking :) I know that some people would not like to get some generic electronics explanation on Your channel but this is IMHO what could bring some more attantion to Your channel. Just my 2 cents :)

Excellent video as always. Could you please make a video (educational) about eye diagrams in communication signals and their applications. What parameters we can extract from them and what type of measurements we normally do with them

You had my subscription after I watched for the first time, video 7 i believe, i like the more specialized videos far far more than the basic stuff, although, i must say you are very good at teaching. One of those things that comes natural to some people. Keep making whatever videos YOU like, the viewers will follow. Thank you for sharing your wisdom. I appreciate you greatly

Coincidentally I was just preparing a note to the 90+ members of our ham radio club recommending YT channels for beginner to advanced topics...several of them already are subscribers but hopefully y we'll garner some new ones for The Signal Path!

Please keep the same video format. Your channel is my favorite YT channel :) I would only recommend you to make some videos explaining fundamentals that enable your viewers to follow the more advanced videos.

As is already mentioned make some series for some project like module for 63181 counter to have input for around 6-10Ghz which is great for new wifi and so. There will be lot of benefits. - more subscribers - learn about design - learn about measurement - you can sell that like a kit = profit - may be Keisight will take over your construction = profit - or simple give it to china manufacturer and get a % of profit And this is only one idea. SDR downconverter, high stability clock, wide-band antena with LNA for SDR and so and so... And you can mix it like one video like this one and one for those series.

1st off , I think that the populace is getting less technical , at least by the numbers and thats what we are talking about / subscribers . I came here & else where by ham radio as interest in deeper electronics and I think your channel is one of the deepest ;) It's a tough call , but maybe a little more towards the RF / lower frequencies . But by all means don't stop your higher frequency stuff . Also getting most of my electronic learning from web / youtube so really like your channel . If I find any of my friends are not subscribed - I will have to --- at least twist there arm ;)

i like seeing exotic gear, and i learn a lot just watching you test it, both about how it works and about electronics... and i love how you make it possible for me to understand with you staircase approach, like how you go little things at a time, and explain from the ground, up one step at a time... I think that's great, and I wanted to compliment you on that, I think it works well with your presentation, too... it makes you (seem like) a nice person 😊 i wish there was more take-home content, though, because i'm still hesitating about a $50 meter, so a $5000 one..? I'd get it if i had the money, though, so maybe it's not a valid argument... 🤔 i'm trying to figure transistors out, too, so a 6.5 digit meter....

My personal vote is for more videos about practical applications of RF techniques. Show some fancy RF simulation stuff and verify with a physical demo, for example. Given your "per video" patreon model, you could combine several concepts into one video. Something that draws upon your specialized expertise to explain implementation details that are achievable for experienced hobbyists. I used to feel a bit weird for being too much of a hardcore nerd in a sense of struggling to connect with less experienced people without overloading them. But I've figured out how to bridge that gap these days. I don't feel like I'm "not using enough of my expertise" or something. Sure I am. When I explain things to someone, I don't make mistakes or mislead them. I use proper and accurate terms. I can easily tailor my explanation to their application. I can answer any followup questions under the sun, etc. The other thing I realized is the value of multidisciplinary communication. I have colleagues with multiple degrees and it's always interesting to hear the insights they've attained by having equal expertise in several fields. If you're at a high level in your field, it's very important to find ways to make an impact on people who specialize in something else, but who could use the insights into your field that come from a trustworthy expert. I would argue that what makes your channel unique is 80% the person and 20% the content. It's your approach that sets you apart. Which is to say, you shouldn't be afraid of making occasional content just a bit more general. Like you said, a lot of people could do (and do) lower-level things, but not in the way that you would and not with the tools that you have. Wouldn't you agree? You're more valuable as a person than you think you are, trust yourself to do a good job on whatever you decide to do.

Thanks for your efforts in making this video.

Maybe you’ve done this, but help your potential vendor marketing folks understand that your audience is not just the typical hobbyist and are more higher end RF oriented peeps therefore there might be motivation to lower their minimum marketing numbers since you have a more niche audience.

Shahriar - try to get Pooch to make more cameos and help out in the lab. You know that RU-vid exists mainly for the dissemination of cat videos, don't you? That'll get you more subs... In all seriousness, excellent, engaging content as always. You definitely have a knack for explaining and making things understandable.

Your have without doubt the best advanced technical channel on youtube. Your videos are always of high quality with both practical information and theoretical background so I always learn something completely new or improve my own understanding. Thanks.

Very good 👍

16:22 That's the money shot, beautiful. That view almost turns me into an experimental physicist ;)

Did you really get the usb card and the usb mouse and keyboard working that fast? At least in my memory I always needed 125 floppys with all the drivers for everything that isn't the most basic hardware

Maybe you could make separate videos of those "simpler" repairs of this machine.

Using an SSD disk on WIndows98 is a bad idea considering the lack of TRIM support (en.wikipedia.org/wiki/TRIM). I would suggest you keep a backup copy of the disk image on a CD and have a spare normal magnetic disk as failsafe measure. No real need to immediately swap the SSD though, as the flash memory wear might be minimal.

On a tangent, manufacturers have got to stop using Windows in their products if they aren't going to see her and maintain it. Otherwise they will eventually find themselves in the news somehow related to a big Information Technology security breach.

Subsampling oscilloscope of around 2-5 Ghz is what desperately needed for digital interfaces developers. But capitalists don't sell cheap subsampling oscilloscopes in this range. You have to choose between $20K 10 Ghz sampling oscilloscope and $20K 100 Ghz subsampling oscilloscope, no cheap alternative for you.

those vendors need to learn about total addressable market for the calibre of viewer here.... broken marketing departments kill tech companies, esp. engineering instrument companies

Thank u for your videos, i learned a lot from you, actually it was my motivation to create my own channel and learn electronic softwares, keep going your greate work...

Am I the only one who thinks it a moral sin to consistently enjoy a creators content and at the very least not subscribe!! Nearly equivalent to theft...

This seems similar to a lock-in amplifier. Can anyone describe the differences? Thanks!

That yellow module looks like a basic stamp 2p40.

I sub for the cause. Keep it up and you will get your 💯k.

I bet the SSD sharpened up the boot time!!

omg this channel is gold

I wonder if the software can be upgraded on this model. I know some of them run Windows Vista. Personally I wasn't expecting a Basic Stamp to be in that random pattern generator.

Every time I watch a your video I feel the urge to turn on my oscillosope and measure some stuff or go on with my half-freezed hobby project :)

👍👍

I would be good to save that old SRF3913 RF transistor; that's not a very common one at all.

I feel like we need a new word for modern digital oscilloscopes, we use them so much in single shot or in "stop" mode. They are ADCs with a screen.

If I would be you - wouldn't bend to vendor's marketing to make more lower quality videos, that are might be less interesting to YOU. After all, I came to see your content in the way you present and explain it, not the manufacturer advertisement. For that I could go manufacturer site and see photos of equipment there. And content does not have to be also latest and greatest equipment, you can do lot of content on the older and clever equipment. It's nice to have high-end gear, but I think that what makes your channel special, especially RF gear repair videos - you often explain things that are not obvious, and getting working instrument in the end is just the nice bonus. Tbh, lately some videos like DMM6500 review somewhat skip many points like how instrument differ from older generation, or things like replacing the whole module in that VNA repair instead of trying to attempt difficult repair to show possible complexity. Often I undertake difficult repair project which I know nothing about, as this is best way to learn a lot of good knowledge while figuring out how thing work, while trying to fix it. Would be nice to see in future experiment comparing "DIY" TDR setup, with things like Leo Bodnar's pulser you have and scope versus actual TDR instrument, and what drawbacks are. Maybe practical example could be testing interconnect signal quality, because this is very popular task modern electronics engineers face with all these modern serial interfaces like USB, PCIe, HDMI/DP, etc.

63k subs are far to low for this great content :) I started to watch your videos when I didn't even know much about advanced electronics and RF. Later, after finishing my mechatronics apprenticeship at a big car manufacture, I realized that your type of content is exactly what I am really interested in. When I start to look for universities, I found that I could study "electrical engineering and communication technologies" with a major RF engineering part close to the city I live. If there wasn't your channel I would probably still doing shift work and get my electrical engineering interest satisfied by watching EEVblog at work ;) Btw, I remember that even I was annoyed by the shared ISA/PCI slot problem back than, but I was far to young that I should care about such things. I never understood why they changed the board position from ISA to PCI, so that one slot shares a PCI and a ISA connection. The only benefit I can imaging now, are some special enclosure with only one slot, but to be future proof (on the mainboard manufacure side) you can use ISA or PCI with the same single slot ;)

Amazing content as always!! I am thinking about making some inductor saturation meter out of basic microcontrollers like Arduino or STM32 using this so-called "Equivalent Time Sampling" and an external VC-TCXO. This can hopefully cut the cost for an expensive ADC and make a very useful $20 tool for the DIY community. I am wondering if this idea is even remotely feasible.

Do not change how you make your videos. I may not understand everything, but I always learn something. I have subscribed. Anders J

You could make a separate channel with lighter content of general electronics, and most likely everyone here will rush to subscribe. You should hit 100k on the second channel in no time, and sponsors could take in account both channels subscribers?

Make "basic electronics" videos for RF grad students. I.e., rather than single-transistor amplifiers at audio frequency, show how a single JFET can work as a VHF amplifier OR a mixer, depending on the circuit. Oh, and chuck the harddrive, but save the magnets! Nice bearings in there, too.

I'm new to your channel, I like what I'm seeing! I work with 20 GHz pulsed lasers, and I'm wondering if sub sampling would allow me to trace the pulse shape in high precision.

Your channel comes across as similar to w2aew's in having mainly an RF audience, but at a higher technical level. His channel has just about 100K subscribers today, 60K two and a half years ago while keeping things simple and to the point. I think you just need to diversify a little as he has, wile maintaining your high standards such as going into the history and theory of cutting edge measurement that interests you. But the key is making sure the channel is something you remain interested in as a pastime rather than ending up a chore that impacts negatively upon your professional and personal life.

10:26 I bet you that a new mechanical one would hold longer then the SSD.

I'm still unclear on how true this is, but I've heard that SSDs need to be used regularly (on the order of months) in order to refresh the data on them. They aren't suitable for long term offline storage. Don't leave this unit turned it indefinitely (or be sure you keep a copy of that disk image).

Have never subscribed to any one except you! Keep up the great work. Hope you reach your number soon. You are in a level all to yourself with no equal.

Shows hard drive "I dropped it anyway, so its dead' - Best part of the video!

This is a real repair-o-thon! So many instruments!

Closing in on 62.5K :)

1 Up from old subscriber. Btw are You from Sweden ?

There's a couple of really interesting ideas already in the comments: Collaborations and project based series, more stuff like the 3D printed feedhorn. Maybe some of the project based stuff towards like, RF and Microwave PCB practicalities (effects of stackup, calculating Microstripline, coplanar waveguides, how to measure and tune PCB antennas/etc) in collaboration with...contextual electronics for KiCAD could be interesting?