Yes, please do show the process of restoring the PACO C-25 capacitor tester. Thank you for all your very informative and well taught content.
@tipetu
7 жыл бұрын
Yes, I hope he does because I have a similar tester with crappy wire leads which needs to be replaced.
@bobvines00
7 жыл бұрын
I agree! Paul please show your restoration of the PACO C-25 capacitor tester. Also, please do a video on the Heathkit IT-11 to show everything it can do.
@markpirateuk
7 жыл бұрын
Yes please, I have a brand new C25 kit, still in a sealed box! It would be good to see inside yours.
@jp040759
7 жыл бұрын
Agree
@BryanByTheSea
7 жыл бұрын
Ditto
@mikesradiorepair
7 жыл бұрын
Have modern ESR meters but still like my vintage Sencore and Sprague testers because they can test at actual operating voltages. My point of view is if a 500 volt cap is going to fail it's going to be when it has 500 volts on it. The huge advantage of modern digital ESR testers is they can (in most cases) accurately test caps in circuit and do it at a voltage that does not turn on solid state devices. Each type has its place and I wouldn't be without either. Mike
@w2aew
7 жыл бұрын
Nice video. With the scarcity of testers like the Heathkit for doing leakage test, a nice project might be to design a leakage tester for folks repairing/restoring old tube gear.
@PapasDino
7 жыл бұрын
Now there's a great idea...only so much room on the workbench and the gear closet!
@MrCarlsonsLab
7 жыл бұрын
Thanks for your input Alan!
@xraytonyb
7 жыл бұрын
Super Idea! I would love to see a home-brew leakage tester as well.
@Deebz270
7 жыл бұрын
I've been watching your uploads too w2new and nice to see you dropping in on Mr Carlson in support :-) . Funnily enough, I was thinking the exact same thing. Could you guys get it together to give us a circuit schematic for something like that Heathkit, all-singing-dancing ESR/Leakage tester ?
@mikeb6185
6 жыл бұрын
Deebz270 that would be an awesome idea -a modern take on a tester!
@carlburgess9635
7 жыл бұрын
Would like to see the restoring of the PACO C-25. Thanks for the videos.
@coopercruse8705
6 жыл бұрын
Hello Mr Carlson, Im brand new to electronics. Have just started to play with a bit of stuff lately (DC only AC frightens the hell out of me) and found your channel , By far the one i have liked the most so far. Quality information from an extremely knowledgeable person. 1 week and I can now tell what most small part are thanks to you. The most important thing i have learn in 1 week is you must have a damn good memory, Im mean someone like you its all just their in your head you have done it so much, But when its just a pass time hobby that you do maybe once a week to a mth lie me you really got to put some effort in to remember so much. Things like reading the colours on resistors , and pnp npn stuff and chip pin out info like a=1 b=2 c=4 d=8 etc . Very easy when you know how and you are right why they didn't use just positive and negative can only be to confuse those who are not in the industry, thats fine thats what learning is all about and all industries do it.. Im finding it extremely interesting but difficult to remember so much when you do it so little. Brilliant stuff from a real tech with quality and safety in mind. Your knowledge is astounding and extremely well put so dummies like me get it. Thank you.
@MrCarlsonsLab
6 жыл бұрын
Be nicer to yourself Cooper, your no dummy. I'm glad you're enjoying this content, and always feel welcome here.
@YouAllKnowBob
7 жыл бұрын
I always look forward to your restoration videos.
@Tishers
7 жыл бұрын
Great video, the approach you demonstrated with leakage and ESR testing has amply demonstrated the inadequacy of testing only with low voltage device that only gives you a capacitance value. For my own bench I am have a Sencore LC53.
@MrCarlsonsLab
7 жыл бұрын
Thanks Tisha!
@MrPatdeeee
Жыл бұрын
Awesome kind Sir Paul. You are a great instructor. Thank you.
@sordello51
5 жыл бұрын
Very nice video about capacitors an how to test them. I am more concerned with esr on most modern equipment. The tool I use to troubleshoot quickly is a Huntron. It's basically a modern version of the old octopus. Doesn't test for leakage. There are other tools for that. I love the heathkit.
@goodun2974
2 жыл бұрын
The Huntron comparator is mostly usefull when you have a stereo unit with one good channel and one malfunctioning channel, to help you compare and narrow down which area of the device acts or measures differently from one channel to thebother; or, to compare the channel you have just repaired to the other working channel before you take the plunge and power it up.
@I967
4 жыл бұрын
To the best of my knowledge, here in central Europe (Czechoslovakia) there were no factory-made devices that could do the leakage test at full operational voltage. I found mentions of DIY jigs and schematics of various devices in magazines that hobbyists could make to test the resistance of capacitors, but nothing that even remotely resembled leakage testers like Heathkit IT-11, Eico 950B and the like. Perhaps I could import one from the UK, but I think I will be building LV capacitor leakage tester. Great content, as always.
@mxskelly
7 жыл бұрын
I'd absolutely love seeing a video on restoring the cap tester! It's fascinating to learn about the inner workings of these pieces of equipment through your amazingly well done restoration vids.
@SoddingaboutSi
7 жыл бұрын
Very nice range on Cap testers. I use a Megger insulation tester to check for cap leakage as well as my old Solar, Hp4261a and Racal Databridge. They all have their pros and cons.
@faxcapper
7 жыл бұрын
Always look forward to new videos, Paul. Please do the PACO C-25 video.
@DennisMurphey
6 жыл бұрын
Yes great showing different gear and test results. I have an old Sprague cap tester with an eye tube, it would fail to open on the one capacitor on my Tube Tester. Pretty Cool. thanks for the demonstrations very well worth the time to make and watch. D
@khronscave
7 жыл бұрын
One real flexible / useful unit is the DER-EE DE5000 LCR/ESR meter. I paid a bit under 160$ for mine, almost three years ago, for the full shebang (AC adapter, Kelvin-connection "tweezer", Kelvin-connection alligator-clips, and one or two other tidbits). It can also be found under the IET brand, but for a premium, and no extra features (nor calibration or anything). For what it's worth, there's a teardown of it over on the EEVblog.
@jamesfenton7338
4 жыл бұрын
Very good info, it's what we all need to know to be effective at repairs. I was never given this info, never shown how it works on various testers, and it's a real good safety measure as well.
@sambrose1
2 жыл бұрын
You are such an incredible teacher, thank you!
@MrCarlsonsLab
2 жыл бұрын
You're very welcome!
@giutarSan1
6 жыл бұрын
Mr Carlson great instruction vid, thanks for your dedication to teaching.
@Pwaak
7 жыл бұрын
Very informative and a pleasure to watch! Yes...please do a video on the Paco! Hope you find time to do an in-depth video on the Heathkit IT-11, covering the Power Factor test. Thank You!
@colvinator1611
2 жыл бұрын
Brilliant! Much appreciated by this student in his ity decade 😀
@JeremyGreysmark
3 жыл бұрын
Wow, I have got to say that I am super thankful for all this in depth information! It has helped me understand a lot!
@Finom1
7 жыл бұрын
WE need more videos on how to test and use your favorite capacitor testers. This way we can equip our Test Benches at home!!!
@SkinnyBiker
7 жыл бұрын
While out at a garage sale resently I scored a Weller D550, SP80, SP23 and a colossal "American Beauty" 600 watt, model 3198. All for only $25. And they all work! Not sure what use the American Beauty is for but it was a package deal. Your videos have inspired me to restore my 1930s vintage Wards Airline radio phono. Now I have the tools and parts to recap the radio. Thank you Mr. C for sharing your knowledge!
@MrCarlsonsLab
7 жыл бұрын
Glad to be that inspiration Tim!
@N9CQX
5 жыл бұрын
Expertly done- as usual, Harry
@Tipo874
7 жыл бұрын
I have been using a Uni-T UT 501A megger to test capacitors. It is not as versatile as a proper capacitor tester, but it will test at 100, 250, 500 and 1000 V, and it shows the resistance in ohms at the testing voltage. One caveat is that for some unknown reason the polarity seems to be switched on the test leads, black is positive and red is negative, which will make a huge difference if you are testing electrolytic capacitors. The last radio I recapped showed a resistance on the filter caps of a few kohms!
@MrCarlsonsLab
7 жыл бұрын
Thanks for your comment!
@crocellian2972
7 жыл бұрын
Do the Paco C-25. Oh hell, do them all. Hey are the little Arduino LCR meters any good?
@hestheMaster
Ай бұрын
Well I have a Sprague Tel-Ohmite cap analyzer TO-6 and it should be just fine for leakage testing. My Heathkit C-3 is a good second choice on doing that as well.
@barrybogart5436
Жыл бұрын
I was at the hamfest in Nanaimo yesterday and grabbed a Heath IT-22, a later model of the CT-1 which you dismiss here. It is also 19mHz. I wonder what the improvements in the various versions were. Anyway, it is immaculate and can be a 'shelf queen'. I've loved magic eyes since my Gonset Communicator 2. I do have a B&K LCR meter and a Blue ESR meter. I also picked up a Fluke 8030A VOM. One battery clip is broken off as usual, but II'll use it as a bench meter anyway. It seems functional and came with the official Fluke wall wart and some probes in the nice leather cases. My first Fluke!
@xminusone1
Жыл бұрын
I've the "dangerous" heathkit capacitor checker and it's very useful to reform and testing high voltage capacitors. You have to be careful but other than that, it a pretty well made unit.
@mrmaxgain
4 жыл бұрын
Yes, come to think of it I have more projects than I can count. I’ll see you at Patreon after some research.
@fredwooding1113
7 жыл бұрын
I am ready to learn Anything you want to teach me.. Thank you for speaking in a way to be understood by people like me who do not have the PHD you Clearly have.
@MrCarlsonsLab
7 жыл бұрын
Glad you're enjoying Fred!
@jjock3239
2 жыл бұрын
Thanks for the informative video. I have the Heathkit IT-28 tester, and I consider it and my ESR tester, as two of my most important test instruments, as I am always fooling around with older tube type equipment. The big problem I am having with the IT-28, , is the colour in the eye tube is washed out. It still works properly, but it is more difficult to see what is happening.
@johnbellas490
7 жыл бұрын
Good to see you again Paul!! Yea, restore the Paco !! I too have 3 tester's One is a real old Solar cap tester in a nice wooden cabinet, the second is the Heathkit that you like, same one!! the third is an ESR/LCR tester about 1 year old. --- John A Bellas KC2UVN.
@mrjohhhnnnyyy5797
7 жыл бұрын
Great video as always. I will add one thing though - if I test a cap with a tester that works by measuring time to charge the c.u.t., and I see a reading that is way higher than the rating, I know that the thing is leaky. Leakage tricks those meters to believe that the cap they test has more capacitance, purely because the leaky cap takes more time to charge. I'm sure you know that, just felt like this might be useful to somebody else with less equipment :)
@MrCarlsonsLab
7 жыл бұрын
Thanks for stopping by Johnny!
@markhall7646
5 жыл бұрын
Mr. Carlson, please include any restorations on regular test equipment. It's neat to watch a restoration of something unique like the Supreme Vedolyzer unit, but for those of us "piecing together" a good service bench, videos like this one are of great value. There is a lot of vintage gear that still has modern uses, and having familiarity with what to look for at a ham fest or yard sale is priceless! Thank you and 73 for all you do! KE5LIB
@MrCarlsonsLab
5 жыл бұрын
Thanks for your comment Mark!
@SimplyElectronicsOfficial
7 жыл бұрын
For me, nothing beats a scope with a component tester.
@matthewf1979
7 жыл бұрын
I would love to find one of those Heathkit testers, or at least build a copy of its leakage circuit. Thanks for all the great work Mr Carlson!
@eddiep3238
6 жыл бұрын
Hey Mr Carlson Thanks for doing all the videos. Would like to see you rebuild a Heathkit C-3. Trying to rebuild one but really don't understand how it works. Many thanks for the video Heathkit Signal Tracer very nice job. Now my works great. Please keep the videos coming.
@KarlAdamsAudio
7 жыл бұрын
Did any other Australian viewers notice the 'EA' logo on the ESR and Low Ohms meter? - it's Bob Parker's design featured in the January 1996 edition of Electronic Australia magazine. Also, count me in on a PACO C-25 restoration video too...
@Beretta96Dan
7 жыл бұрын
I bought one of those from Dick Smith Electronics about that year. Still use it on occasions. Good piece of test gear!
@BentConrod
3 жыл бұрын
I have Bob's 'new, improved' MK-II Dick Smith kit version as detailed in Mar/Apr 2004 Silicon Chip mag. A handy companion to my Heathkit C-3 Condenser Checker, which indicates capacity, leakage and power factor. It has a spring return test switch which automatically discharges the cap under test, reducing the DC shock hazard.
@andrew_koala2974
3 жыл бұрын
Karl Adams Exactly. Electronics Australia or EA was the longest-running Electronics magazine in Australia. Seeing the EA Logo would make Leo Simpson and Jamieson Rowe very happy, I still have almost ancient copies of EA and Silicon Chip in my garage as well as the U.S published Radio Electronics Magazine. and not forgetting ELECTOR magazine, that was something special. I started buying EA from around 1967.
@simonflint5303
Жыл бұрын
Just a got a 1940's 'Solar' capacitor analyser. It's basically like the Better Heathkit model you like. Just awaiting a new power transformer and then it should be good to try out.
@markanderson350
7 жыл бұрын
Nice to see you back. Sorry, I don't care so much to see what I should not buy. I now know I need an ESR for todays stuff and a leakage for the old equipment, or just replace all the wax capacitors.
@williamsquires3070
7 жыл бұрын
Now test the electrolytic with the "tube" tester for leakage, and test the paper cap with the ESR meter, just to show what happens.
@alynicholls3230
6 жыл бұрын
i design build modify and repair metal detectors, pulse induction and vlf, so an oscope and an lcr meter are vital, the problem i have is finding good lcr meters that measure low enough on the henry scale, most only go to 100 uh, some do 10uh which is okay, but you really need 1uh. at 100uh a 320uh air core coil, could read 280-360uh, at 10 uh it could read 300-340uh, so a one uh setting gives a more accurate reading of the coil, which in pi detectors can be important, my advice would be to buy a quality dedicated lcr meter, and not a multimeter with lcr, i have found those to be quite inaccurate even "good" named ones, often cheap no name dedicated lcr meter reads closer to value.
@captlarry-3525
6 жыл бұрын
I have an IT-11 that I might well have passed on .. not knowing it has these very useful capabilities.. since I work with lots of vintage equipment where HV caps are always an issue, . Thanks !
@iwa2008
7 жыл бұрын
I will look forward to seeing the Paco, it's design looks interesting. Surprised you didn't mention your Genrad digibridge.
@0mnis14sh
2 жыл бұрын
I would've loved to see how the ESR meter handled the wax capacitor
@jasonhumphries
3 жыл бұрын
Absolute brilliant, what i hope to be a good teacher, for me soon.
@sficlassic
7 жыл бұрын
Thank-you for the video. I have enjoyed everyone you made and look forward to a restoration video. I have always been a fan of preventive maintenance. When servicing, Isn't it just a good choice just to replace any, even suspect capacitors ( with a high quality ) one ?. For the most part they are cheap. I can see using a meter if you have to match one for RF circuits. I know replacing good components with new ones may be a waste, but I believe better safe than sorry.
@overkillaudioinc
7 жыл бұрын
Just picked up an IT-28 that I am re-capping!
@Spark-Hole
4 жыл бұрын
Good job as always, but I have one disagreement with you,100u farad 400V if it shock you, you just can not move your arm for a few seconds, and that is it , no more no less.
@Deebz270
7 жыл бұрын
Brilliant. Need to update my kit methinks. So can one perform all the required checks. IE- ESR/leakage/capacitance on an oscilloscope ? Instead of buying all these gizmos? I'm not sure whether Heathkit is still available to us in the UK and I recall (back in the day...) that their kits were pretty pricey. By the way, another upload covering more of the reactor/tranny checks (in other words all that that Heathkit tester does...), would be great. . Soon I'm gonna be checking your tutorials on patreon. Keep up the good work Dude :-) PS: What model 'time machine' do you have Paul? Mine is a 'Gallifrey TDS MkIV :D
@u8915055
6 жыл бұрын
These are absolutely fantastic videos.. many thanks for doing these
@MrCarlsonsLab
6 жыл бұрын
You're Welcome Tom!
@williamrayot3964
4 жыл бұрын
Would like to see you do a restoration on capacitor devices very interested in seeing your work
@reynaldofigueroa3372
6 жыл бұрын
Great video. I didn't know which one to buy, I know now. Thanks
@rubusroo68
7 жыл бұрын
would love to see you tear down/repair all of that equipment!
@Mr71chevyvan
5 жыл бұрын
i noticed you didn't discharge the cap before connecting to the ESR meter. perhaps its not necessary however i learned over the years to do that w/o thinking and possibly save an expensive piece of equipment from damage.
@umajunkcollector
7 жыл бұрын
ebay suddenly just has a demand for Heathkit cap testers
@samiam5557
7 жыл бұрын
so true
@video99couk
7 жыл бұрын
I'm a big fan of the Peak Electronics ESR70 capacitance meter which is great for testing ESR of electrolytics in particular.
@cognetic
7 жыл бұрын
video99.co.uk Same here. I use the Peak Atlas ESR70 as well. Wicked easy and simple to use. Wish he included this model, in the review.
@robertcalkjr.8325
7 жыл бұрын
I love my Peak Atlas Analyzers also but the best way to check a cap is under voltage with an insulation tester. I was hoping Paul would talk about newer testers rather than testers we probably can't find.
@mrGoesto11
5 жыл бұрын
Another vote for a PACO C-25 restore video please! Btw, where's the infamous Sprague Telo-mike Cap tester?
@grahambutcher5171
7 жыл бұрын
Yes please both the Paco and Heathkit would make a great video.
@ThePapa41
6 жыл бұрын
Thank you for the excellent capacitor testing video! I would love to see the Paco C-25 video too, they made very good testers also.Louis
@ChipGuy
7 жыл бұрын
I would like to see the restoration of both of these meters, should be interesting. Oh and please show us your time machine ;)
@peternewman958
7 жыл бұрын
Hello Paul nice video I really like the last HEATHKIT tester very nice but as you said dangerous for the non-attentive operator. This year early on I won a DE-5000 brand new with all attachments for $80 AUD I was the only bidder. Now this is a great LCR meter as you can select what frequency you want to test at, and for electrolytic' that's usually 120Hz. You can select Dissipation Factor. ESR. Tangent angle etc. pretty much all electrolytic manufacturers list the dissipation factor on their data sheets. Where as only some list ESR. I recently paid for some very well,known top brand caps, and was most disappointed to find when I checked them that they were outside the 20% tolerance range stated. As an example some were 1000uF but only showed 780uF or less. We eventually came to an agreement I got a refund that was nearly what I paid and the caps went in the bin. I wouldn't use them in a customers item When doing a full recap. I've been very happy with the DE-5000 and daughter not know how I got by without it. I will keep an eye out for the HEATHKIT unit as I quite like V.T. Meters. Keep up,the great work Paul you have an excellent talent for teaching in a way that most people can follow, and that's rare where a lot teach at a higher level. Cheers
@MrCarlsonsLab
7 жыл бұрын
Thanks for your comment Peter, and taking the time to write as well!
@kathyquinlan5922
7 жыл бұрын
I would love to see the two capacitor checkers restored and how they work explained.
@MrCarlsonsLab
7 жыл бұрын
Thanks for your input Kathy!
@vancouverman4313
4 жыл бұрын
It would be interesting if you could do a video explaining how to use the Heathkit IT-11 power factor control when measuring electrolytics. I know that Power Factor in a capacitor is the reciprocal of ESR but am kind of confused. When you adjust the power factor control in the IT-11 while you are using the bridge, it sharpens up the dip of the tuning eye. Since low ESR is desirable in electrolytics is high power factor desirable also?
@budandbean1
7 жыл бұрын
"Re-Form" Capacitors? Really? Can that actually be done? I'd love to hear more on that subject, even if it might be a "what not to do". Mr. C, I really enjoyed your talk today!
@UpcycleElectronics
7 жыл бұрын
^I second that motion^
@retrotechandelectronics
7 жыл бұрын
I used to re-form or attempt to re-form electrolytic capacitors, I think the true art is in the re-stuffing of those caps with modern ones which is what I do now. Having opened up enough old can capacitors I can see that time is not a friend and running current through them wont fix what 60 or so years has done to them. Trying to rebuild a dielectric coating on something that so broken down and dried out is just asking for trouble.
@khronscave
7 жыл бұрын
Re-forming electrolytics applies more to, as far as i know, ones that have been laying in storage, unused. You might not wanna go applying near-to-their-rated-voltage right off the bat. Ancient electrolytics though, you just wanna chuck straight into the bin.
@eumoria
7 жыл бұрын
As far as it's been explained to my newbie ears is a method for preparing electrolytics that have been sitting for a long time. As for the actual physics or specific method.... hopefully Mr. Carlson can elaborate.
@3beltwesty
7 жыл бұрын
Reforming can be done but the yield is often low on old surplus junk. :) The ancient Sprague guide (maybe say 1970's) I used about in 1990 had one reforming via heating the capacitors, having a series resistor in series with each capacitor and going above the rated voltage. I did this about 1990 with several dozens of 10 to 30 year old multi-section radio filter caps. About one third of these got "reformed" the others just drew more and more current, ie the leakage current did not drop with time but rose. This was with a mess of oddball "multi-section radio filter caps" in the 300 to 450 volt range and say 5 to 60 uF. These were from Apex in Sun Valley, the TRW swap meet and C&H sales in Pasadena Calif. I heat the caps in the oven and had a Power Design 3000 volt 10ma supply with a resistor in series to limit the current and also to monitor the current. The reformed "multi-section radio filter cap" I placed in a S19 R Sky buddy radio was OK for 15 years until Katrina hit and the radio went under salt water. A reformed cap I place in a S40 hallicrafters dies a few years before Katrina, thus maybe 10 years. Even if "reformed" the cap needs to be used, If left with no DC across it they often are bad again in a few years. During the reforming event the leakage current will drop, but often not enough to be OK. Heating is required to get the dielectric reforming. With leakage current there is I square R loss watts of heating in the cap too. On abad cap it might be more heat than what oven did. :) You do not want the darn caps blowing up in your face by using too low a resistor.
@BufferStuffBuddha
3 жыл бұрын
This video answered literally every single question I had regarding testing capacitors.
@Beretta96Dan
7 жыл бұрын
Paul, you have nice, soft descriptive hands.
@irgtk
2 жыл бұрын
Ditto on the restoration of the PA-25🔍☕️📓
@1959Berre
6 жыл бұрын
Well, I guess the best would be the one you designed and built recently.
@JohnDoe-by5et
6 жыл бұрын
1959Berre How do I get one?
@jamesoakley5814
4 жыл бұрын
John Doe I’d like to make or buy one also. Can’t find and link to it.
@richardpayette7552
Жыл бұрын
Luv watching your videos. Bought a Heathkit 400m. The face has cracked and slid on the shiny backing material. Am interested in what to do with this. Am repairing to full functioning condition thanks to watching you.
@Deebz270
7 жыл бұрын
It is so nice to see other electronic 'geeks' supporting each other and saying such nice things about Mr Carlson, I particularly and wholeheartedly agree with Soundscapes first paragraph below. These uploads are a true joy to watch and so clear and precise. It makes a change from other channels, where all one sees is bickering and backstabbing. But then we techno geeks have a bi-product to our respective intelligence, we are gentlepersons. :-)
@andrew_koala2974
3 жыл бұрын
Deebz270 'GentleMen' ... PERSON(s) are a CORPORATE Fiction that im-PERSON-ates the Living Soul. 'Man' .. You may wish to look up the definition of PERSONA ... The best advice I can give you is ' Never' admit to being or identifying yourself as a PERSON. That is how you are trapped by the Legal / Commerce System. All the best.
@graemebrumfitt6668
6 жыл бұрын
Yep... please show the restoring of the PACO C.25 capacitor tester Mr C. As always Paul very much enjoyed this vid, nuther snippet of knowledge gleaned. Thanks Graeme
@BobPegram
7 жыл бұрын
I have heard that when you are fixing 5, 10, 20+ year old electronics you replace all or most all electrolytics. They don't have to be swollen at one end, they are frequently toast. I also have read about folks who selectively replace electrolytic capacitors, by testing their ESR and replacing the too high ESR caps as well as the swollen, obviously dead ones, but not the others. It would seem to be most useful if the unit is still faulty once the swollen caps have been replaced. Are you in the replace them all camp Mr. Carlson? On a related note, what are the quality brands? I'd have to get my caps from Mouser or Digikey or a competitor.
@MrCarlsonsLab
7 жыл бұрын
Hi Bob. In switch mode power supplies, all electrolytic should be changed in one shot. Gear that doesn't stress components like the SMPS, can be a random change. It all depends on age and the quality of the original capacitors. I purchase my caps from the places you list, this is a safe bet due to all the fake's on the market.
@youtuuba
Жыл бұрын
Maybe somebody already mentioned this in a comment, but regarding the point made in this video about one of the testers applying AC to the tube, without a rectifier, I will note that the CT-1 shown right after that also does not have any separate rectifier. However, the Heathkit manual for that product specifically states that the 1629 "magic eye" tube has an effective 'virtual' rectifier inside, and therefore although AC is applied from the secondary of the power transformer, current is only flowing in one direction in the tube circuit, with the circuit "coasting" during the opposite side of the AC waveform. In other words, the circuit DOES have a rectifier, but it is an integral part of the vacuum tube, not a separate device.
@zodak9999b
7 жыл бұрын
A video of refurbishing the Paco? Yes, please! Also, this was a very informative video, thank you very much.
@thomaslanik7215
5 жыл бұрын
A great job, Sir. Thank you - again!
@MrCarlsonsLab
5 жыл бұрын
You're welcome Thomas!
@a1s2d3d4
4 жыл бұрын
Is it possible just to use ampermeter and DC voltage source to measure leakage current? If capacitor is leaky it should pass direct current like resistor. So, magic eye on Heathkit indicates direct current, just like ampermeter.
@anyoneatall994
6 жыл бұрын
I telephoned Circuit Test (CT). The DLM-240 has not existed since 2012, possibly even before that, not exactly sure, the rep said something about nine years ago. CT purchased it from a Taiwan company and the meter is no longer available, at least for CT to purchase. Rep said they would love to be able to buy it and resell it. Second rep also said they have been getting a lot of requests lately for that meter . . . (oh boy, get ready for the mainland China made counterfeits to hit eBay!). CT shows they have a 260 model. But it has less of a range that the 240 had. And its not one of those model upgrade progressions that if the 240 was good, the 260 must be even better. Not so, the 260 needs to be called the 220 or 200 model. I've been seeing a pattern of Asian made, and/or, other outsourced products no longer being available.
@robertanderson8613
6 жыл бұрын
Of coarse I would love to watch a test rebuild
@maincalandar7434
7 жыл бұрын
Very timely and informative. I've been needing to make a decision which testers to buy, and this helped me make my choices. I had been doing blanket re-caps on anything over 40 years old, and power supply''s on anything 30 years old ( audio gear), but I want to test the electolytic's to be sure I get all the shorts as well as leaker's.
@martinmeek9147
7 жыл бұрын
Many thanks for another great video. Some time ago I bought a Sencore LC-102 capacitor/inductor analyzer. It can perform tests for capacitance, ESR, dielectric absorption and leakage. It is surprising how many caps I've thrown in the bin because they tested bad for dielectric absorption, but good on all the other tests. My whole collection of old Jensen paper in oil caps had very bad dielectric absorption and were tossed in the bin. Also I've found quite a number of ceramic caps that tested bad for dielectric absorption.
@michaelchambers7691
2 жыл бұрын
Possible to modify this Heathkit capacitor checker with a spring loading switch. I hope to soon get an old capacitor checker.
@VintageLabSilvioPinheiro
7 жыл бұрын
Nice collection and useful information. Thanks again to share this masterpeices images with us.
@MrCarlsonsLab
7 жыл бұрын
Thanks Silvio!
@davidlemnah4938
Жыл бұрын
Would love to see your restoration, I have one
@carldavis8228
7 жыл бұрын
Also, please do the restore. I watch your restores even if I will never own the equipment. I always learn something new.
@BillyLapTop
7 жыл бұрын
Another priceless lesson. Thank you!
@MrCarlsonsLab
7 жыл бұрын
You're welcome Bill!
@vladnickul
5 жыл бұрын
If you are hobbyists... just buy yourself a 50 bucks one. in Europe we have (from decent brands but no fuss ) capacitor meters for 20-50 euros. 0.1 -5% tolerance , rage depending +2-9 counts ( a 1999 one ) they have good range from pico to M more then enough to measure from ceramics to cap. packs. Here were I live a vintage capacitance metre cost + 200€ that heathkit kit one is worth something like 400 usd :))in fair or mitings... in Romania Also that "esr/parts tester. identifier, the yellow one with the atmega chip works decent enough, but don't you FUCKING forget anything you buy that is made in China is endorsing, an evil comunist regime that FUCKING kills people.
@dalemettee1147
5 ай бұрын
So far, it looks like your capacitor polarity tester is the only kid in town. You'd think that some one is selling one already assembled.
@destry232
6 жыл бұрын
Clear and concise. A very well-made video. We appreciate the time and effort you put forth to share your knowledge!
@MrCarlsonsLab
6 жыл бұрын
Thanks Miller!
@KB1UIF
7 жыл бұрын
Thank you for another great video. Covered all aspects of testing Capacitors. I really like the leakage test as that's one thing I don't have in my workshop yet. I have the ESR testing etc. Keep up your well planned and produced, educational videos. Thanks.
@MrCarlsonsLab
7 жыл бұрын
Thanks for your comment!
@kieferonline
4 жыл бұрын
Brilliant video! Thanks for this A+ lesson.
@peteb2
7 жыл бұрын
The Heathkit IT-11 tester was the 1st serious piece of electronics i handled in my new job after leaving school and becoming a "Tech Trainee" for an AM Radio Station. My head supervisor bought the kit for peanuts as the local agents for Heathkit were having a huge clear out sale.. It was 1978 and tube based gear was classed as having done it's day. I completed the cap checker build in a couple of days and it worked perfectly first switch-on. It then sat on a shelf in the workshop for the next 5 yrs because the company was systematically replacing all its studios with modern semiconductor based gear. One morning I came to work to find a huge dumpster outdoors full of various 19" rack mount equipment, all tube based audio gear that had been the sort of thing i'd been trained on and sitting ontop was 'my IT-11'... never to be seen again.... BOY I WISH I HAD "RESCUED" IT THAT DAY....
@MrCarlsonsLab
7 жыл бұрын
Great story Pete, thanks for taking the time to share!
@steelcantuna
2 жыл бұрын
I have a Heathkit it-28. You mentioned in this video you could do a whole presentation just on the capabilities of the it-28. I would like to see it. No one on KZitem seems to covered it that thoroughly, just restoration videos.
@robinsattahip2376
3 жыл бұрын
Thank you. The old Knight Capacitor tester I had as a child would be nearly useless on modern electronics. The new no-name ESR meter and Rigol capacitance checker (function of a bench multimeter) would be nearly useless on old tube circuits. Electronics have changed so much in the 50 plus years since I started. Your Heathkit is the only tester I ever saw that could put out 600 volts without at least a spring-loaded switch. Doubt if anything like that could be sold today. That is unacceptably dangerous even for test equipment.
@kilcar
2 жыл бұрын
Shopping for a capacitance testor, and I'm so glad I saw your treatise on devices. Thank you!!
@MrCarlsonsLab
2 жыл бұрын
Glad it was helpful!
@steelcity321pb6
7 жыл бұрын
A huge thumbs up Paul. Yes, I for one would love to view detailed circuit explanations regarding each one of the of capacitor testers: especially the older types. Thank you, Phil.
@MrCarlsonsLab
7 жыл бұрын
Thanks Phil!
@antraciet
7 жыл бұрын
Thank you for this video. I learned a lot.
@AlexandreKandalintsev
7 жыл бұрын
One thing I don't like about "basic" esr-meters is that they do not let change of the frequency. They don't even indicate it.
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