thank you for the detailed description and for sending the ESR kit so quickly. The kit arrived today -
I have not yet checked every component, nor started to solder - will start next week.
You asked for the link where I saw and found the ESR meter - voila: http://jvgavila.com/8566a_43.jpg
I came accross this well described repair of an HP 8566B Spectrum analyser. When my 8566B started error messages, I remembered the article - and amazingly - my analyser suffered from the same fault - a broken 10uF capacitor. So ths time I replaced it without any further search - but the next time I may have to locate a fault, it may be more difficult to find - So I think your meter is essential. Thanks again for offering such a useful kit Have a nice weekend - 73, Karl Barth, F5VAE FR PS: your English and your instructions are excellent - .....
The meter arrived today, A great device, thank you! Regards Risto Mäkinen FI
Hello Vitor, I received the ESR meter some days ago and it is working well, as far as I can judge. It clearly distinguishes between a "blown" cap and a ordinary one. Thank You for the decent transaction.
Kind regards, Krzysztof Terlecki DE
Dear Vitor, The meter arrived this morning. Many thanks for the fast and friendly delivery.
Have a nice day! Seppo Nurmi FI
"I received the ESR Meter today, and it seems to work fine! Thanks very much for the good service :) Best Regards" -- Brian Klint, -- Denmark
"The ESR meter is in excellent condition and the initial tests I did showed that meter performs very well. Best Wishes"Peter van Merkerk, the Netherlands (another satisfied customer!) It is nice doing business with you.
I received the meter, and it looks fine.Nice work.Thanks for a well performed trade. Omnitec -- v./ Poul Bundgaard – Denmark
Today is Tuesday 20 January 10.00 and there was the postman calling my front door Special Delivery from Portugal. Indeed the ESR tester. Package & Packaging is OK and all the accessories are there, I installed a battery and surely one has to take care NOT to press out the Red LED window......Performing the QC Incoming Inspection learned me that the tester works as advertised, I like to comment on the Workmanship....EXCELLENT all those tiny little stress relievers, PC board markings and lay-out. So I know the system is working and I'll invite my friends to place more orders....Bram Stolk, aka Mr. HAWK Sr SeniorBusiness Development Manager -- Fokker Defense Marketing -- the Netherlands
"I received the meter few days ago. Shipment was fast and the item was well packed. The build quality of the device looks excellent. I've had no problems. Best regards - Aarne Jokinen - Finland"
Hello Mr. Manuel, today the 2 esr meters you have sent, have arrived by post in perfect condition. Waiting for the 3rd esr meter, I want to thank you for selling me these fine instruments. Best regards, Lieven Vanhulle on4cvl – Belgium
"Vitor, The ESR tester arrived promptly just as you promised. It is impressive and seems to work very well, and the price is well below competitive products. I have tested about 100 electrolytic capacitors with it and surprisingly only found two that were outside an acceptable range. BUT, I probably wouldn't have found them at all without your device! Kudos! --Bill Blue, USA"
I just received the meter today, everything seems to be in order! Thanks! Regards, Kim Johan Andersson – Denmark
Hi Vitor, Just to let you know that the meter arrived today (wed 11th). Many many thanks. Regards, Kevin- UK
Vitor, I wanted to let you know that I received the meter today. I have only been able to test it on 2 new capacitors and it appears to be accurate. I can not wait to try it in the field and see how well it works. The look and construction is very good. I am real pleased with this unit and I would like to thank you for the great transaction. Once I find it valuable I will try and get my company to buy 1 for each technician.Thank you so much,- Eric S. Oestreich- Field Operations Technician-West Coast Division- CA- USA
Vitor, Meter is here, battery in, working good.. DENNIS O’ROURKE - MN-USA
I forgot to tell you meter received and impressed with construction quality inside. Thankyou very much. Has diagnosed 1 tough dog job already!! Derek Mckean Service Technician for Fronius Perfect Welding – Australia
Hi again. Sorry I didn't write you before, but I received the ESR meter about a week ago, thank you very much. Kind regards- Jan Hansen – Denmark
Hi, Vitor, I received the meter in good condition on Friday and it's working great. Thanks for getting it shipped so fast! Larry Ingram - West Brookfield, MA – USA
Ola Sr. Vitor Manuel, recebei hoje seu fornecimento de metro, o que foi embalado muito bem. Por isso tudo chegou sem ano.Obrigado pelo bom servico. E agora posso controlar melhor os capacidades electroliticos durante meu trabalho de reparacoes.Com os melhores cumprimentos - Frank Albrecht - Açores – Portugal
Hi, Vitor, You will pleased to know that the meter arrived today and seems to be working fine. Thanks for your speedy delivery. Best regards - Rob Whitton – UK
Just got the meters! Thanks for great service! Hope to cooperate in future. Best regards from Slovenia, Gregor Vavpotic
Hi Vitor, I received the the meter last monday. Thank you very much! Unfortunatly I was very busy with other stuff could'nt answer you. The evb seems to work well.Best regards,Daniel Pohl – Germany
Vitor: Received the meter in the mail today.. I was very pleased and am excited to put it to use. Thank you and should you ever need someone in the US to distribute the meters for you I would be interested in working with you. Louis Cooper City - Florida – USA
Dear Vitor, I got my meter.Works well. Thank You, John - La Chalmette - LA – USA
Hi Vitor, the meter arrived today and it looks like it is functioning ok. Thanks very much. Eric van Baaren. The Netherlands
Vitor, We received the meter on the 28th. Great value! Thanks, Dan Nobles Atlanta Duplications & Engineering Service Snellville, Georgia USA
Dear Vitor, The "EVB ESR meter" arrived yesterday Saturday 9/25/04 at 4PM. I measured the ESR on several good capacitors < 0.05 ohms for 470 uF 250 V. One bad capacitor had just a - ohms. Thanks. David David L Narva Reno, NV USA
Vitor, Just to let you know. It arrived on Friday, and I have now used it to check some capacitors on my old Drake R-4C receiver. Have found some that look bad that I will change. Lars E. Pettersson http://www.sm6rpz.se/ Goteborg SWEDEN
Hallo Vitor, thanks for Your mail. Excuse, I was very busy over the weekend, so I'm answering only today. I received the meters yesterday well packed!! and undamaged. After I found time to test and examine them thoroughly I will send You my comments and if necessary positive! critics on them. Since You've sent only one manual I will, with Your permission, make a copy for the friend the second meter is designated for. Best regards,Roland Schuessler - Muenchweiler – Germany
Hello Vitor! I received the meter on Thursday. It´s functioning just like promised. With many thanks Kalevi Lindfors - Joensuu – Finland
Hi. Allmost forgot, the meter arrived an is working well. Thanks, Patrick Hayes - Soeborg – Denmark
Vitor, just to let you know - the meter arrived today in excellent condition. I am really impressed about the quality of the whole arrangement. Looking forward to catch some corrupt caps.Greetings from Hamburg - Mark Neugebauer – GERMANY
Vitor ,Sorry I was so busy at work and I just got the time to send you an email to let you know that I recieved the meter and it really helped me a lot in troubleshooting my projection TV. It works great and thank you very much. Regards, Carlito Obregon - Arizona – USA
Vitor, Esta mañana 4 de noviembre a las 10:00 llega el medidor en buenas condiciones, aunque el paquete esta un poquito afectado (foto). Gracias atentamente Egied – Belgie
Ok, thank you very much for your fast reply to my questions. I like the meter and it works very good.
ESR in capacitors was something I wasn't able to measure until now. I also find very useful the low ohm measuring capability. I use a Sencore LC53, a hand held cap meter, an old analog ICE 680R which I bough new in the early 70's and a couple of other DMM (fluke 189..), but no direct ESR capabilities until now with the new EVB. Thank you and good luck with the sales. JUAN CARLOS – SPAIN
Hi Vitor, The meter arrived a few days ago and seems to be working fine. Thanks for the prompt delivery,Andrew – Australia
Hello Vitor, I hereby confirm the reception of the ESR meter. I can assure you that the meter will be introduced to a huge number of interested people. Regards Vladislav – Bulgaria
ViTOR Few minutes ago I receive your meters , thank you very much for your co-operations to this subject mater.
Tks/Brgds - Agrafiotis Nikolaos - Greece Senior Electronic Eng
Hi Vitor, The meter arrived safely. Thanks alot. I´m hoping to investigate some intrigueing ´lytics :-) cheers Jens Germany
allo,Great service, received the meter today. 73's Thank you Mr. Manuel. Please keep me informed if you make other interesting products. Best regards, Stefaan de on1aqc – Belgium
Hi Vitor,Meter arrived safely today, not had a chance to play with it yet. Thanks. Regards Noel – UK
I tryed inmedelity the meter and I am very happy with it . To automaticly discharge the capacitors I have an idea .
With a standard and a special test probe with a push button in it , simular as used by a scope , when you start measuring bolt probes are shorted by the 100R resistor and after a few seconds , you push the button on the probe and start realy measuring the capacitors . Regards Wim - the Netherlands
Hi Vitor, Received the meter and very pleased. Just for information though I had to push the sleeving down on the switch as it was a little too sensitive. I have taken the meter in to my employer and highly recommended your product. Many thanks again for such excellent service. Marc. UK
Hi Vitor,I received the esr meter yesterday and it is working fine! Thanks for the rapid delivery and a nice Christmas to you to. Best regards, Marcel Heriks Rotterdam Nederland
Vitor, he package has arrived in good order. Thanks for the fast service. Tomorrow it’s hobby time Happy Easter. Regards Nico Verduin Electronics Nico Verduin Netherlands Web: http://www.verelec.com Forum: http://www.HYPERLINK "int:http://www.ampforum.nl/"ampforum.nl
Vitor Manuel, got the meter in good shape. The electronics are most likely OK. Will try it out as soon as I can! Thanks for the quick service, I look forward to fixing everything in my house that's busted! Mark – USA
Many thanks Vitor, the meter was received in good order today morning. it is exactly what i need. here is a short review i did on our capacitor forum http://www.badcaps.net/forum/showthread.php?t=1287 william – USA
Hello Vitor, The meter arrived today and, after a brief play, seems to work well. Thank you for such prompt service. Regards, Steve. USA
Vitor,Just wanted to let you know the ESR meter arrived this morning. I have already used it to confirm a 'bad' electrolytic capacitor. So simple and easy, should have done this years ago. Many, many thanks. Best regards,Norman Thompson UK
Olá Sr Vítor Os aparelhos chegaram hoje em perfeitas condições. Faço parte de um grupo de técnicos em Portugal. Vou colocar o link para o seu medidor lá.Pode ser que algum colega se interesse. Obrigado Cumptos - Mário Duarte Santos - Odemira – Portugal
Vitor, quanto você acha que custara para você enviar um aparelho deste para o Brasil. Eu vou comentar nos foruns e o pessoal vai querer saber quanto custa. De uma entrada nestes foruns e faz sua propaganda pode citar meu nome como comprador. http://www.network54.com/Forum/248242/ http://www.network54.com/Forum/483416/ http://www.acrisoft.com/forum http://www.network54.com/Forum/544784/ Nilton – Brasil
Hello Vitor,Thank vou very much. I got the meter today. I tested it with some caps and it works well. I´´ll recommend you,greetings from Germany, Hakan Kiritoglu – Germany
Hello, the ESR-Meter arrived last Week and seems to work. Thank You Vitor. Best Regards Dietmar Dranga – Germany
I has arrived me and to tester ESR, all perfect Thanks Domingo Alb –Spain
Vitor, The meter arrived today in perfect condition. Nice piece of work! It will get a lot of use in my shop. Thank you for making it available. Best regards, John Rudson – Canada
Hello Vitor, I already received your ESR-meter last friday. It is a very good meter and I think a colleague of mine will order one more for him within some times :-) I checked with some capacitors : I salvaged 2 caps from my garbage bin that I changed from a previous repair because they were "bad" and I found that they both had an ESR of 10 ohms ! I checked with some tantalums but these are not so good for ESR, except some old (more than 20 years) "metal tantalum" that are still very good (#10 milli-ohms). We also checked with a professional "inductance/capacitance meter" we have in our office : it has 3 digits precision (probably also more than 3 digits for the price in euros !) and the values from both meters are the same (+/- 1 digit). Jean-Yves SEYLER Detection Chain Department
CNES : French Space Agency - Centre Spatial de Toulouse
Hi Vitor The meter got here today it appeasers to be working ok--I need to read the manual you sent (link) Thanks Bill - San Jose, CA United States
Hello Vitor, The ESR meter I ordered has arrived. Thanks for the quick service. John Myers - Alliance, OH USA
Hi Vitor: I received the meter in good condition yesterday. It has already proven very useful in that I was able to to find 2 bad electrolytic capacitors in power supply the first time I used it. Interestingly enough, the caps had previously tested ok with a regular cap meter, but showed high ESR readings with the EVB meter. Sure enough, the 2 bad caps were pulling the power supply regulators down! I replaced them, and the power supply is good now. Thanks again for a great meter. (P.S.- how about offering a nice protective case for the meter?) Best regards, Ron
Hello Vitor, The meter arrived today and I just tried it out. It looks like all is working fine and I will definitively try to use it for repairs. (I hope to repair a few switched power supplies that have problems) Thanks for sending this so fast! Kind regards, Ernst Elderenbosch - The Netherlands
Dear Vitor! The meter just arrived. And it works just fine. Thank you very much for the speed and the very fine meter indeed. Also I think the price is very reasonable. Larry USA
Vitor, I have received the meter and am pleased with it. Can you please provide me with a receipt I can print and submit to my accounting department? Thank you. Hunter Anderson Video Engineer Prestonwood Baptist Church Plano, TX USA
Hi again Sorry I didn't write you before, but I received the ESR meter about a week ago, thank you very much. Kind regards Jan Hansen Denmark
Hi Vitor, the meter was received today. Question: Could you send me a bill, so I can receive the money back from my company Question: Is the ESR meter also good for tanatalum and ceramic capacitors or only for electrolytic? Mr. Yosef Irwin Zaklas Senior Engineer ELTA SYSTEMS INC Israel
Meter arrived Tuesday, very well constructed and very fast delivery Many thanks Martin Baugh UK
Hello Vitor, My EVB Meter has arrived today fine, super item. Can you send me some sort of receipt now please, so that I can get the money back from my boss? Many Thanks Alan Cope. UK
Hi Vitor - received the chip yesterday and fitted it together with 2 back to back diodes across the input terminals to reduce chances of it happening again. Meter now works fine - I was surprised to find that no other components had failed - I was expecting to have to replace a transistor or two and probably the bipolar capacitor, but they seem to have survived. Many thanks for your help - I'm always recommending this meter, but now I can add your details - the EVB meter looks more professional than the DSE - slimmer and more moder Once again - many thanks for assisting in a speedy recovery Rick Humble – Spain
I got it today. That was very quick! Nice little box - thanks. Adrian Huck – UK
Greetings Vitor - I got my kit today and put it together. I'm very pleased with the fit and finish and am happy to finally add this useful piece of equipment to my bench. Thanks a bunch! Dave Casey – USA
Dear Vitor, I have recieved the ESR meter today. It works fine! Thank you very much for the very good and quick delivery. Again thank you very much! Best regards, Leen. NL
Arrived this morning Very pleased Many Thanks Dave Lewis. UK
Hi Vitor, I picked up a new set of test leads and that was the problem, I am able to zero the leads. Thank you for your quick reply and suggestion. I am completely satisfied with the operation of the meter. Thanks again for a great product. Best Regards, Evan USA ( a fan of Fado)
Hi Vitor , i received the EVB. Thanks. Hartmut Knop - ABB Automation GmbH - ATG/SCH – Ratingen
Hi Vitor The meter got here today It appears to be working ok--I need to read the manual you sent (link) Thanks
Bill - San Jose, CA United States
Hello Vitor, The ESR meter I ordered has arrived. Thanks for the quick service. John Myers - Alliance, OH USA
Dear Vitor! The meter just arrived. And it works just fine. Thank you very much for the speed and the very fine meter indeed. Also I think the price is very reasonable. natko katicic – Austria
Hi Vitor! Your meter arrived today and it work fine! Only two days delivery time. Nice work Vitor! Best Regards
Mika . Finland
I got today the kit. Excellent job, thanks. Regards Tomppa. PS. I will assembly it during weekend. Tommi Karjalainen
Greetings Vitor - I got my kit today and put it together. I'm very pleased with the fit and finish and am happy to finally add this useful piece of equipment to my bench. Thanks a bunch! Dave Casey
Hei Vitor, I today gathered and tested ESR meter kit, all excellently works.Only it is necessary to select the optimum length of the wires, in order to their resistance it less influenced the measurement. Best regards. Roman – Estonia
Just wanted to let you know the meter arrived on Friday as expected, it was in one piece and in a working condition!
I've just been too busy and unfortunately haven't had time to test it yet, hopefully soon. But thank you very much for the excellent service, I'll definitely recommend to all people in need of a meter!! :) -Tommi - SINETECH-Finland
Good evening Vitor! I just arrived home and found the meter in my mail box. Very fast and excellent service, thank you very much Vitor! I must say, I intend to recommend your services to anyone in need for such a device.
I have already one TV and a VHS awaiting for condensator testing, and now it seems I may get to it even this very weekend. I wish you a happy weekend Vitor! Jukka – Finland
Hi Vitor! Thanks, meter comes and works well, but i need two meters more my working place (tv-service), can i pay same iban numbers...., sorry my english... best regards jari - Order: 2 pieces ESR-meter JOENSUU - FINLAND
Hello Vitor, i received the meter today by mail. It looks good and i can't wait to use it. Thanks for the accurate and fast service. Kind regards, Jurgen - The Netherlands
Hi Vitor, Thank you for your prompt response to my earlier email enquiry re payment for your black model EVB ESR Meter. I have sent the requested payment via Pay Pal. I trust you find all in order and I look forward to receiving a most useful piece of test equipment. If you should have any new additions to your test equipment range I would be interested in receiving details. Thank you for your assistance. Best Regards, Edward
Hi Vitor, Just a note to say to say Thank You. I received your ESR Meter in today's post and am delighted with the instrument. It was everything your advert said it was. Within fifteen minutes I had located two separate faults in two different pieces of equipment -a really indispensible tool.
Thank you too for your fast efficient service and speedy delivery. Best Regards, Edward (Smyth). UK
Hi again. The EVB meter has arrived to me today. Thanks. Francisco Canton – Spain
Hi Vitor Manuel. Thank you for the extremely fast delivery! If I recall correctly I ordered the meter on Wednesday and received it on Friday! It is working fine and I am eagerly inspecting my electronics appliances. It requires quite a fresh battery, or measurement result could suffer a litlle difference. Merry Christmas, Kari Pirhonen -Tampere – Finland
Hi Vitor, today I received the meter. It works perfectly ! Thank you very much for sending immediately after receiving the money. Best Regards Steffen – Germany
Received, works great.. Thanks! -Paolo – Italy
Hi Vitor, Received the EVB meter, smaller than I expected. Works like a charm. I would like to know, I am using it with test leads. Does it mean, every time I turn it on, I have to do zeroing? Regards. Spencer – Singapore
Hi, I just received the esr meter. Took a little longer but it works as stated. Thanks - Giuseppe – Italy
Hi Vitor, Sorry for my late reply. The meter arrived and we shall try to get the best out of it. Thanks, Zvi Rosenthal, Rostec Advanced Technologies Ltd. - www.rostec.co.il
Hi Vitor The EVB meter arrived today, I tried and I am happy for how it works thanks. Natale Pacher. Italy (Sicily)
Hello Vitor Manual, Meter came today correct to my post office. Thank You and best regards from Eero Ukkola – Finnland
Hello, I have received the package today. Many thanks. Regards, STEPHANOS APOSTOLIDES – Cyprus
The shippment is OK ! The EVB tester is in my home ! Grazie, Angelo Palermo – Italy
Hi Victor, sorry that I was too busy to reply you that the parcel had arrived for 3 days already and thanks for your prompt service. Regards , Choong Keat Yian AC WISE ENGINEERING AND SUPPLIES - Kuala Lumpur, Malaysia
, Yesterday the EVB Meter has reached me. Thank you for the good product and quick winding up. Greetings from Germany Hans-Gerd SPRANG
Vito – thank you for the service!, package arrived! Kind regards, Paul Hendriks - The Netherlands
Hi Vitor, just wanted to let you know that the ESR meter has arrived in good working order today (tuesday). Kind regards, Abe Wiersema - The Netherlands
The kit arrived at lunchtime today, thank you. Four days to the UK for future reference. Assembly was no problem and this afternoon I have a working ESR meter. I have already used it to fault-find a PSU that I have been wanting to fix for some time. Thanks for an excellent addition to my test equipment. Regards, Andy Fraser
The meter arrived today, A great device, thank you! Regards Risto Mäkinen – Finnland
Dear Vitor, The meter arrived this morning. Many thanks for the fast and friendly delivery. Have a nice day! Seppo Nurmi – Finnland
I am a very happy EVB user!.... and recently I read where your new "kit" version of the EVB has the low drop out regulator.
It is easy to buy the LP2950CZ-5.0 regulator here, and it would be very easy to install it in my EVB.
Is there an adjustment in the EVB I can set for when the low battery warning will come on?
PS I have a nice variable DC power supply to do the battery voltage adjustment with, and plenty of parts and equipment to do any modifications you might suggest..
many thanks for your nice comments, it will be very easy and definitely a very nice upgrade for your EVB meter, and I'll be very happy to lead you doing that, replace the old regulator, to new LP2950CZ 5.0 and a resistor of 47k close to on-off switch to 27k, all hardware changes are done, turn 10k trimmer fully clockwise, apply 5,5v to battery snap, watch the polarity, power on the meter and turn that 10k trimmer slowly, anti-clockwise until "b" start to flash, now use one fresh 9v battery to power the meter, power on, zero the leads and measure with one 1% resistor around 4 to 10ohm, 5.6ohm is the best, check the value displayed and adjust 220R trimmer if need to match the resistor under test for it's value, clockwise increase, anti-clockwise decrease the displayed value, that's it, your upgrade is done. any doubt more let me know. Good Luck Vitor
Thank you for the quick reply.... more of that fine EVB service you are so well known for!
This will be a nice upgrade for my favorite ESR meter, now it will use the battery down to 5.5 volts.
Your instructions are perfectly clear, and I will order the LP2950 today.
Recently my friend Steve White ordered an EVB ESR meter from you, and he received it this last week. He is very happy with it already!
The LP2950-5 low drop out regulator arrived today, and with your instructions the new parts were installed and the calibration done in just a few minutes. I did not have any 1% resistors, so I checked the calibration on many resistors rated between 0.1 Ohms and 51 Ohms, and the EVB meter read very close on all of them!
Thank you for the fine product and the instructions to upgrade it!
"Dear Vitor Manuel, Your meter arrived yesterday. I tried it already on some capacitors and it gave the expected values. On bad capacitors the values were about 10 times higher. So it works like a charm! I'll recommend you to other people. Good luck with your work. BTW, the meter is free of Customs Taxes when ordering within the European Union." -- Pepijn Boon -- Delft – Netherlands
A Special thanks to everyone, who ordered EVB ESR Meter and also for these nice comments, good luck to you all. EVB aim to please.