Demo of Bob's "Blue2" ESR meter.

[@hullinstruments]

I love your design. I collect ESR meters and have probably close to 2 dozen. Please excuse me for rambling below… I understand if you don’t have time to read it but I am very excited to discover you on KZbin and would like to share some of my history with your circuit and others. I’ve always been a big fan of your circuit… And although I have at least five of your meters I still pick them up if they show up cheap on eBay. I actually picked one up last month for a great deal brand new with some fancy extra leads and clips on eBay. I keep one in my portable kit, and one in my lab. The reason I buy more if they show up cheap... is to pass on to friends and folks who could use one in their work. It’s such a simple handy device. Would love it if you made a new design by using an analog meter in an ESR tester. I think analog meters are extremely useful in regards to ESR testing. And the only one available on the American market is the “capacitor wizard“… Which is simple circuitry but crazily overpriced. After shipping and the extra $20 for the protection circuit… I think it’s over $250. And although it’s a nice piece of kit… considering The construction and materials… I think it’s overpriced. But that’s just my opinion. If you look on KZbin for analog esr meters you’ll discover that they are huge in the eastern and Indian markets… You can even find them on google and if you work out the conversion to US dollars they’re all under $100… But none of them are available to ship here. Apparently a lot of the technicians over there find them extremely useful! I really love the analog ESR testers. I’ve built a few of my own from the “five transistor ESR meter“ design that is on the EEV forum. It’s a great little circuit. I also buy up the analog ESR meters that used to be offered by a few companies in the 70s 80s and 90s. But they don’t come up too often. I really like the “electronic design specialists“ cap Analyzer. I have an original EDS 88… And the new version which is EDS-88A series 2. They’re pretty expensive though so I have to watch out for them to pop up cheap. Which only happens about once every two years or so on eBay. I actually built the most recent version myself. I ordered the chips pre-programmed from the original designer Dave migga … and the circuit board from someone who has them made with modern techniques and keeps them in stock on eBay for about $20. I had to have the graphics printed myself… but It was fairly cheap. A local sign shop did it using special UV and weatherproof vinyl. With a nice mat finish. The graphics will last forever and really stand up to more abuse than the originals. The enclosure was hard to track down… But it was a fun build. I also built another EDS product which comes in handy called the “leak seeker“. Basically just a meter that finds super low resistance and helps find shorts on a board. Similar to the ”TONE-OHM” devices...... a micro Milliohmeter but with an audible tone that goes up and down in pitch according to the resistance. It’s very intuitive, and can instantly calibrate to a new area of the board when you pick up and move the probes. Also has an LED bar graph display. It can actually be purchased in complete kit/parts form… for about $160 including everything. Even the original USA made enclosure and printed vinyl stickers that are actually good high-quality graphics. But it takes quite a bit of fiddling and effort to fit the enclosure so that it’s perfectly clean and doesn’t look like a homemade project. I actually built 2 leak seekers… But the first one was stolen on a month after I finished it. What bad luck! So for the second one I used my small CNC machine to make the cuts and holes needed for the enclosure. That way it was nice and tidy and it didn’t take me eight hours to do it cleanly by hand 😂 . I actually have a lot of experience with building enclosures from scratch… So I have the tools and stuff needed to fit everything by hand. But it was just fiddly and I didn’t feel like doing it a second time only a month after the first. I apologize for rambling. I just didn’t realize you were here on KZbin… And I’ve appreciated your circuit for so many years. And I’ve had that meter in every version and enclosure it’s ever been offered. I’ve had many of them brand new… But I’ve had at least two or three of them that were purchased from a tech who retired or passed away. The one I keep at my bench is one of the original versions that the guy purchased brand new as soon as you began offering them… And he used it every single day at his TV repair store. He passed away and I helped his wife rehome a lot of his equipment to schools and students who would appreciate it. But I kept that meter for myself because it was so well loved and it was polished to a perfect gloss where he had used it every day. That meter probably paid for his house 😂 he sure made a lot of money using it. And I will cherish it forever. I have a passion for tools and equipment. The reason I collect the esr meters and the reason I’m such a big fan of your circuit… is because when I started electronics years ago… I was really afraid of electronics and I didn’t understand anything. I didn’t even know that a capacitor could store a charge. And I was constantly having to work on and repair things… and I was afraid. But the ESR meter seemed like magic to me. It was such a lifesaver. I didn’t have to know a bunch of fancy numbers or no the theory behind it… I just had to use it and follow your chart. I felt safe and competent using it…So I began collecting esr testers along with other troubleshooting tools “for dummies“! What I mean by “for dummies” is gear that can be used for simple “go/no go” tests on electronics… By someone who doesn’t know what they’re doing but can watch for a simple signal from the meter. ESR testers, the leak seeker, huntron trackers, tone-ohm testers, curve tracers, thermal cameras, and many more things I’ve amassed in my collection. Even though now I understand electronics theory and can troubleshoot like a pro… I still add to my collection of “dummy devices“ because there have been so many over the last 30 or 40 years… Some of them genius… Some of them absolutely silly. But I find them interesting and many of them are very useful. Sorry to ramble. Thank you for all you do. I hope to see more designs from you soon!

[@ZilogBob]

Hi from Down Under. I've been meaning to reply but I've been tied up with another little project. You've probably heard of "ring testers" for checking the condition of flyback and other transformers. This one reads 0 to 99 "rings" and works great on nearly any inductors including tube power and output transformers and even a washing machine. I wanted to see if it's practical to do it without a microcontroller and common parts and it's looking pretty good. If the prototypes work OK, I plan to put all the info up on my website so that anyone could make it if they can get the double-sided PCB. Anyway thanks for all your comments. Back in 1995 when I designed the original Dick Smith ESR meter, I sure never expected it to take off the way it has. It's easier to communicate by e-mail. I'm at [e-mail] if you'd like a less public conversation.

[@ELECTROxigeno76.]

Good morning Bob Parker, your blue ESR TESTER team simply changed my life for the better, 💯😃🔧, I thank you for your attention and invention of this mega useful equipment that is practically essential for me and many, thank you Bob Parker, .. atte Alberto de Mexico,..

[@ZilogBob]

Hi Alberto! Sorry for my slow reply but I've been very busy. Thank you for all your nice words. It has been an honour for me that the ESR meter I originally designed just for my own repairs has been very useful to you and other electronics technicians. 👍🙂

[@yingyang5971]

Congratulations my bro Bob for second more accurate version in testing rings and ESR like case. and thank you for your first one !!??

[@ZilogBob]

Thank you Mehdi. :)

[@randyab9go188]

Please bring this and the new ring tester to the USA. There is a market here and many will buy this over the chinese since you are the originator of the original meter. I have a DSE, a Blue ESR and hope to add a Blue2 to my bench!

[@ZilogBob]

Thanks for your positive thoughts and support Randy! I've replied to you by e-mail. 👍

[@DerekEmerson]

Hope these come to market in the UK. a kit version would be great too with non surface mount components, it might make it larger in size but would be a nice tool to use and to say you built

[@ZilogBob]

Thanks for your thoughts Derek. It would be great to sort out all the problems and get them into production. Believe it or not, the biggest problem is finding probes with sufficiently low and stable contact resistance. 😕

[@DerekEmerson]

@@ZilogBob I’ve been looking to replace the test probes on my multi-meter, tried a few different ones and they have high resistance, might have to take the plunge and buy some decent Megger leads which are about the best on the market, I just don’t like the price of them.

[@ZilogBob]

@@DerekEmerson Professional gear has a professional price tag, unfortunately. 😠

[@yannis92preloude]

Hi. Bob I am interesting of purchasing one of old or new models. Can you tell me what are the difference in the two models Anatek/Alltronics original Blue ESR meters vs new "Blue2" ESR meter. Can you use the new blue2 esr to measure 18650 battery 4.2volt. Thanks and Merry Christmas to you.

[@ZilogBob]

Sorry for the slow reply. I've got some kind of infection which is making me sleep nearly all the time. The main differences between the earlier meters and this one are listed in the video's description. Apparently nearly everyone is happy with the original design and have no interest in the new features like reading down to 0.001 ohms and being powered by 2x AA cells. The "Blue2" meters would be able to measure the internal resistance of an 18650 cell. Merry Christmas and Happy New Year to you too.

[@yannis92preloude]

Thank you Bob for the info on the new model It would have been nice to have a 3rd digit, at that resolution will be good for finding dead short circuits as well. I'm going to check what is the difference in the prices if there is a small difference I will consider the new model if it's a big difference I'll consider the old model. I hope you get well soon. @@ZilogBob

[@ZilogBob]

@@yannis92preloude Thanks for your nice wishes. I feel horrible right now. This meter will read down to 0.001 ohms. Below 0.1 ohms, both decimal points illuminate to indicate that it's reading in milliohms, so it doesn't need another digit (which there's no space for anyway). Check out the notes I wrote for it, at bobparker.net.au/esr_meter/Blue2esr.pdf

[@GigaPlaya]

I like the 0.001R range. When will the Blue2 non-talking be available? What microcontroller does it use? Is it available in kit form? What is the price?

[@ZilogBob]

Hi. I'm still trying to find out how popular this meter would be, before we start looking at maybe making them. The microcontroller is a PIC16F15354. Sorry but it won't be a kit because it's all SMD components (that's why it's not very big). We haven't worked out what it would sell for, yet. Thanks for asking. :)

[@Yorumcu63]

Great video Have algoritm for ESR meter and LOPT transformer tester (ver.2) I want make for PIC .Have any link for this details?

[@ZilogBob]

Thanks for your nice comment (which you've edited out). 👍It might be easier to communicate by e-mail if you can go to my website at zilogbob.com and contact me from there. Is that OK with you?

[@nghtrdr]

Where to buy one and are there kits as well? Was just going to purchase the first gen kit but would love to build this one instead. Thank you

[@ZilogBob]

Hi from Australia. Thanks for your nice feedback. 👍 Right now I'm trying to work out some way of getting these meters built and on sale. There are still a few problems which need solving, e.g. getting probes with extremely low contact resistance. Using almost entirely Surface Mount components, it's not really suitable for making it into a kit.

[@nghtrdr]

@@ZilogBob Thanks is for the prompt reply. Hopefully you get it sorted. Shame there won't be a kit. An sms kit would be a joy to build.

[@ZilogBob]

@@nghtrdr You must have very good eyes, steady hands and a very fine soldering iron tip to want to assemble Surface Mount components manually. 😕

[@nghtrdr]

@@ZilogBob With a magnified light and the help of a Hakko fm 2032 w/t30 J smd are easy. Patience is the hardest part really. Whay else can I say besides I love a challenge!

[@ZilogBob]

@@nghtrdr That's a nice looking iron. I've been using solder paste and a temperature-controlled "hot plate" for soldering my SMD boards.

[@jhtvideo]

Any update on when this will be available?

[@ZilogBob]

Hi James. I'm not in a situation where I could make and sell them. EVB in Portugal was going to make them but it doesn't look like that will happen any time soon. I'm frustrated and very disappointed, to say the least. 😒

[@esaugalvez]

Very nice. I would love to buy this second version with out voice. We will be waiting for updates. Thank you for the contribution!!

[@ZilogBob]

Thanks for watching. The COVID-19 situation is seriously disrupting the postal system and we're hoping things will improve before too much longer.

[@larrygenedavis]

Any idea when this might become available ? I like the idea of a voice reading the values.

[@ZilogBob]

Hi Larry. You are one of only about 4 people who think an ESR meter which can talk is a good idea. Unfortunately I'm in the middle of trying to move houses and nothing has been done about making and selling these meters. Possibly next year I will be in a position to do something with them.

[@virgogreg]

@@ZilogBob Hi Bob can u sell the audio ESR to me as a kit im in NZ .my email [e-mail]

[@NicleT]

Hi Bob, I’m really interested to buy one too. The big talking brother would be excellent but the mute one would be perfect too. Where and how can I find them? -Thanks

[@gi169]

Zilog, I forgot to hit the like, sorry my friend...👍👍👍👍👍👍

[@tonyd1149]

Mr. Parker, awesome meters. Don't understand the 2 decimal points. ¿Does this mean that 3 signifc digits is only for low resistances (Range: 0.001 to 0.099 ohms), please? (And after that, [0.10 to 0.99], [1.0 to 9.9], [10 to 99] ?). Please pardon my impertinence (mean no disrespect). Thank you.

[@ZilogBob]

Hi Tony. For all readings above 0.099 ohms, the numbers showing on the displays are the reading in ohms. For readings below 0.10 ohms the numbers on the displays are the reading in *milliohms* (1/1000 of one ohm). There are only two displays, so the meter turns on both decimal points to show that the reading is in milliohms. I wrote a user manual for the meter, which is at bobparker.net.au/esr_meter/Blue2esr.pdf if you're interested.

[@tonyd1149]

@@ZilogBob Thank you for the clarification and link to the manual. God Bless. tonyd\.

[@bryanleon1436]

Hi Bob, I just bought your Blue2 ESR Meter. I wonder the AA lithium battery be used for this meter? As now there are lithium battery typed AA (and the rest) are available in the market. Thanks

[@ZilogBob]

Hi Bryan. Thanks for getting one of the meters. I didn't think anyone was interested in them. 😊 If the lithium cells you're referring to are Energizer Ultimate or similar which have a voltage around 1.6V, they would work fine.

[@bryanleon1436]

@@ZilogBob Hi Bob, thanks for your reply. In fact this device was recommended by my teacher, Mr. Jestin Yong after I attended his electronic basic lecture lately. He did a great demo and it makes diagnosis easy and accurately.

[@ZilogBob]

@@bryanleon1436 Hi again Bryan. Thanks for telling me that Jestine is demonstrating that meter. I've known him for quite a long time and I'll have to thank him for that. I hope the meter will save you heaps of time in your repairs. Good luck! 👍

[@ELECTROxigeno76.]

I love this instrument.

[@ZilogBob]

Thanks for your positive feedback. Much appreciated. 🙂

[@fredsk1]

Hi Bob Hope you are well. I have an EVB ESR meter that I use all the time. Definitely an invaluable tool and a huge time-saver on any repair job. I'm very proud of the fact that such a handy and respected device was made by a fellow Aussie. I was in grade 4 in primary school when your first design was released - a long way away from ever attempting repairs of my own and getting into the hobby. It is quite amazing to interact with you on KZbin :) I was wondering, what leads are attached to the prototype units in this video? They look very nice and simple. Cheers and Merry Christmas to you.

[@ZilogBob]

Hi there Frederick. Sorry I missed wishing you Merry Christmas but I can say "Happy New Year". Thanks for your nice feedback. It's 27 years since I designed the original version for helping with my own repairs, and no one involved with the project ever expected that it would be very popular, let alone still be on sale after all this time. This meter uses the Kelvin or four wire measurement technique to let it measure down to single milliohms, so the leads are actually thin audio coax cable which I got from Jaycar. Regards, Bob.

[@fredsk1]

@@ZilogBob Hi Bob - thanks for the response and well wishes. I realised that I have used the wrong terminology when asking about the leads. What I meant to ask was about the probes, although your response is very helpful regardless as it addresses the motivation behind me asking in the first place, which is that the test probes that come with the EVB meter are impossible to zero; I suppose owing to their high resistance? In any case, I found the probes that you are using at Jaycar too! (2mm test probes for $4.95). I think I have some leftover figure 8 audio cable from Jaycar - the grey one like yours pictured. Do you think I could use these to wire my own test probes + leads to 4mm banana plugs for my EVB meter? Thanks again, and Happy New Year to you too :)

[@ZilogBob]

@@fredsk1 Hi again Frederick. All the test leads I've measured have well under 0.5 ohms of resistance. I've found that using a grinder to remove some of the plating from the tips can be helpful. The "Blue2" meter in the video has different circuitry to the original ESR meters, to make the Kelvin (4 wire) measurement principle work. You wouldn't gain anything by using coax on the EVB meter. I don't specifically remember where I got the probes for the meter in the video from but you're probably right that they were from Jaycar. The New Year is getting uncomfortably close!

[@edwhite7475]

ive got the first one and its GREAT.....i even got the kit and put it together myself and saved $20...its a good project.

[@ZilogBob]

Thanks, but you've got one of the Anatek/Alltronics original Blue ESR meters. Glad to know it's working out well for you. 👍 The meter in this video is the new version which uses tiny Surface Mount components so it won't be in kit form.

[@edwhite7475]

@@ZilogBob ok well yeah i saw that...just trying to help....its a good product and i enjoyed the kit...i learned a bit-

[@ZilogBob]

@@edwhite7475 Thanks Ed. Sorry I misunderstood and thought you meant you got the first one of these new prototype meters. Thanks for your good comments and I hope your new Blue meter will save you lots of troubleshooting time!

[@edwhite7475]

@@ZilogBob yeah i use it all the time and when i had trouble understanding the assembly procedure the company was right there to assist me through the process.....THAT was impressive....learning something NEW is always painful, to a degree, and i was a 'noob' so i shot myself in the foot during the process, BUT they were as helpful as they could beand thats rare.

[@ZilogBob]

@@edwhite7475 I assume you were dealing with Andy or one of his staff at Alltronics. Like Anatek before them, they go the extra mile to look after their customers. You're right that service on that level is pretty uncommon these days.

[@thomsoftthom2616]

Does this tester allow you to measure capacitors without unsoldering them from the board?

[@ZilogBob]

It can measure the ESR of capacitors while they are still on the board. However if there are capacitors in parallel with them, then one lead will need to be unsoldered.

[@thomsoftthom2616]

@@ZilogBob Thank you! Is your product sold on aliexpress?

[@ZilogBob]

@@thomsoftthom2616 Sorry, the only supplier who has them for sale is EVB in Portugal. The website is at evbesrmeter.pt/index.htm

[@NicleT]

I understand your *Blue2 brothers* aren’t available and you’re not necessarily in this _bubble._ I wondering though if it could be possible to buy only the programmed chip and the schematics to build one? I can probably get all the parts and build it here. What do you think? Personally I find this tool to be an incredible must-have on my bench. Thanks

[@ZilogBob]

This meter uses 0805 size surface mount components so it's not very well suited to manual construction. Also the microcontroller is programmed in-circuit via a connector and I don't have any facilities for programming them on their own. Right now we're trying to get organised for building and selling the meters. If nothing else goes wrong, maybe they will go on sale much later this year. The COVID situation is making it difficult. 😕

[@NicleT]

@@ZilogBob thanks. I found a store who used to sell them assembled or in kit. I order one and unfortunately, I was refunded today because they’re B.O. I’ll find something made more recently. ESR meters are more common nowadays I presume.

[@ZilogBob]

@@NicleT If you search the internet for ESR meters, you will find them everywhere especially on Ebay. There's a list of all the variations of my original ESR meter on my website at bobparker.net.au/esr_meter/esrmeter.htm You can contact me by e-mail from my website if you have any questions.

[@ELECTROxigeno76.]

Beauty vídeo, Beauty tool for Ever,... TKS Bob friend..

[@daipai21]

Is the Blue2 ESR meter for sale in the USA?

[@ZilogBob]

Unfortunately the only way you could get one of the meters would be to order it from the EVB website at evbesrmeter.pt/blue2esr.htm. There's very little interest in these instruments so we haven't made any arrangements for distributing them in the USA or anywhere else. Thanks for your interest!

[@burntoutelectronics]

G'day Bob, I can see that a few over time have asked when your new revision on the ESR meter will be released. I'm wondering if any conclusion was ever made on the subject? And if not, would a schematic be available with the appropriate code? thanks

[@jonathanespinoza7810]

hi, when can i buy a blue2, i wanna one. god job

[@ZilogBob]

Unfortunately the COVID-19 problem has messed up the postal system. Packages either can't be sent, or they often never get to their destination. For that reason the Blue2 meters still aren't being made until the situation gets better. Apologies for that. 😕

[@uricohen5463]

where can i bu y one

[@ZilogBob]

I'm in the middle of moving houses so I can't make any progress towards making these meters. Hopefully next year that will change. Thanks for asking. :)

[@j.dragon651]

Someone has to make one that is accurate down to .022uf for us guitar amp buffs.

[@jamesdavies686]

Any release date on these?

[@ZilogBob]

Hi James. We are hoping to have them available around the end of the year. I was hoping for a date long before that. 😕

[@ELECTROxigeno76.]

Talking? Oh My god, it's increíble, i need one 😊😊

[@ZilogBob]

It's really annoying that the COVID thing is having a terrible effect on the postal system and packages often go missing. I hope that the situation will get better before too much longer, and we can try shipping these things. I might even make the voice available in various languages. 🔊

[@ELECTROxigeno76.]

@@ZilogBob Bob, good morning, thank you for answering me, if exactly the postal businesses are not well and it is understood, on the other hand the Blue ESR Tester is a super essential tool for your Server, I just recorded a video about it, I have using it near the 10 years the Blue ESR and it works perfect, but even so I want the one that speaks and if possible also the other New generation, I will try to get them, I am in Mexico, Mexicali, border with Californian Calexico, it will not be so complicated to acquire it, thanks Bob Parker, thank you very much, Atte Ignacio, your friend, .. 😊🔧

[@ZilogBob]

@@ELECTROxigeno76. Hi again. Thanks for your comments. I will send you an e-mail. 🙂

[@gi169]

Awesome Bob aka ZilogBob... Nice channel...

[@ZilogBob]

Thanks mate! 👍👍

[@michaelgomez677]

hm? can i order blue2?

[@ZilogBob]

Hi Michael. Thanks for asking about it. The COVID-19 situation slowed progress down to a crawl but it's looking like these meters will go into production within a few months. We're concentrating on getting the "Blue2" ring testers on sale first. Please check back occasionally.

[@michaelgomez677]

@@ZilogBob thank you

[@michaelgomez677]

@@ZilogBob can i oder now?

[@ZilogBob]

@@michaelgomez677 Can you please go to evbesrmeter.pt/index.htm and send him an e-mail to find out when they will be available? Thanks!

[@mixinginthebox]

I love my blue. Good job..

[@ZilogBob]

Thank you for your nice comment! :)

[@ELECTROxigeno76.]

Uffff exelent, 💯

[@ZilogBob]

Thank you, Alberto! 👍

[@randyab9go188]

I want one.

[@ZilogBob]

I'm in the middle of moving houses so I can't make any progress towards making these meters. Hopefully next year that will change. Thanks for your comment! 73, Bob

[@ELECTROxigeno76.]

💎Good afternoon Bob, I hope you are well, look at a link I sent you when I have time, it is related to a New way to use the blue ESR Tester to find a short crossover circuits in a laptop computer, I am pending atte your friend Ignacio from Mexico , thanks..

[@ZilogBob]

Hi again. I sent you an e-mail directly a few days ago. Did you get it? If not, please send one to me at [e-mail] so we can talk more easily. 🙂

[@awaisahmad1516]

Schematic or circuit diagram

[@ZilogBob]

A microcontroller IC with custom firmware controls all the functions. Without that IC, the schematic is useless. Do you still want to see it?

[@ctbully]

@@ZilogBob I would like a look, Ive seen otheer ESR schematics and want to compare your design with theirs, if thats alright with you. Pls send it to [e-mail]

[@ZilogBob]

@@ctbully Hi John. I've just sent you an e-mail with the schematic attached.

[@ctbully]

@@ZilogBob Thank you Sir

[@CABohol]

Nice

[@ZilogBob]

Thank you Sir.

[@gregford5030]

I like the second one, but the first one leaves me speechless.....

[@ZilogBob]

Lots of people talk about free speech but the second one costs extra.

[@j.dragon651]

It won't read any of my vintage silvered-mica capacitors , just shows -. I think they are rated too small. You said milliards. I brought that up with the band in the studio here in the states one time and they called me on the carpet. We were at the drummers house, I told him, go get a dictionary. You know the rest.

[@ZilogBob]

ESR meters won't give reliable readings on capacitors much under 1uF. I said "milliohms", not "milliards" which I had ever heard of until now.

[@j.dragon651]

@@ZilogBob I figured the ratings were to small and that was why I was getting no reading. They were the old color coded ones. Milliard The cardinal number equal to 109. A thousand millions: as, a milliard of francs. A thousand millions; -- usually called billion in the United States. This sometimes confuses me when I hear a billion used in relation to Europe. Are we talking a U.S. billion or a European Billon, which is a million millions, as opposed to ours, which is a thousand millions.

[@ZilogBob]

@@j.dragon651 The only capacitors which have a big problem with their Equivalent Series Resistance increasing are electrolytic capacitors. Nearly all of them are 1uF or higher. It's very unusual for other types to fail that way. That's why ESR meters generally won't give sensible readings for caps much under 1uF. Yeah, I looked up milliards after you alerted me to that word. Thanks for improving my knowledge. :)

[@j.dragon651]

@@ZilogBob Dealing with vintage tube guitar amplifiers I come across many smaller values. I just came across a .047uf @1000v electrolitic. I couldn't find one in my usual sources. I am not sure if I can trust the meter at those values? Both values are off the charts. As for our conversation about numbers. I'm sure some scientists measure frequency in the billionths of seconds? Is there an international standard so there is no confusion? We may be the only two out of a milliard, or would that be a billion, having this conversion?

[@ZilogBob]

@@j.dragon651 I think you'll find that the 0.047uF capacitor is not electrolytic. I just checked the Digikey catalog and the smallest electrolytic caps they sell are 0.1uF. The ESR meters will hardly respond to a value that small, if at all. Frequency is measured in Hz. Time is measured in seconds. 1/1000 of one microsecond is one nanosecond. You could probably call that a billionth of a second. Yeah, I think you'd be right that no one else is having a conversation about these arcane subjects.