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Found 14 results

  1. My team has decided to make a prototype of an "Advanced" SPD by incorporating an electronic circuit which shows notifications and an additional circuit which shows earth faults if any in a circuit. As we were planning to use MOVs with Thermal cut-off, the notification incorporation is not a big deal. But the problem is that, there is only 20kA Imax for the proposed model of EPCOS and we require models with more than 40kA which is not available in the MOVs with Thermal cut-off so we have decided to use normal MOVs of that capacity for which there is no notification/monitor lead. Please propose any alternative or a better idea to put this things together. Also we are trying to use GD tube/Spark Gaps in the higher models along with MOVs for which the notification is again a concern. valuable suggestions please!!!
  2. PCBGOGO now has build a plan to sponsor electronic hobbyist's do pcb project (up to $50)here is the links:http://www.pcbgogo.com?code=yFor eachone resigner they give 20$ as a coupon.
  3. Hello guys, Another 1590B marvelous pedal effect - the peppermill overdrive (original concept found on #runoffgroove ). Looks pretty much the same as CMOS Fuzz (minimalistic raw metal design) but shines red instead of blue. In case someone is wondering I'm not changing my main coure from electronics to guitar effects. I just decided to combine three of my passions (electronics, guitar, CAD/diy) and show some new type content along with mechateonics engineers flexibility. I'll be back with some hardcore electronics content as soon as I manage to overcome some communication issues. pcb from: PCBGOGO
  4. Hello guys, im a 17yo student that loves electronics and i started working on custom tv-b-gone based on arduino version with rechargeable battery and i needed pcbs for it. Firstly i ordered pcbs(on the left) that were $3 PER PIECE and then i found out for JLCPCB. They have amazing offer of 10pcs 10x10cm pcbs for $2!! I could fit 6 tv-b-gone boards on one 10x10cm pcb and multiply that by 10 and you get 60 pcbs for $2!!! When i first ordered i tough that its just a low quality board but when i received them in 2 weeks (which is really fast) i was SURPRISED by QUALITY for that LOW PRICE. First there was no shorts between any of the tracks. My design has really tight traces and they came out perfectly! Silk screen is also really good and vias are covered fully which gives boards nicer look. Panel by JLCPCB really made my job easier and it is also good, VCut is perfect, you just can snap the boards with hands and sand the sharp edges. They also make solder paste stencils which are helpful with pcbs with 95% of smd components and its also cheap, only $7 for big stainless steel stencil! Ordering is really simple. Go to https://jlcpcb.com/ and upload your gerber files in zip or rar format (there is also tutorial how to export gerber). If you want panel select "Yes" for "Panel By JLCPCB" and enter how many boards you want in a row and column. Im just really surprised by quality and looks of the pcbs. If you are interested in the project here are some video clips and soon there will be clip of assembling one with board from jlcpcb. https://jlcpcb.com/ https://jlcpcb.com/ https://jlcpcb.com/
  5. PCB Layout Tutorial: For High-Quality PCB Design http://www.apogeeweb.net/article/89.html Asymmetric source/drain MOS transistor LPNP MMC
  6. Hello, Everyone!!! I am Katy Radcliff and new to this forum. I love to repair and rework PCB's, so I hope I will get something new related to PCB's and other electronic things.
  7. I ordered my first PCBs from www.jlcpcb.com last week, and I am very impressed. I usually get my PCBs from seeedstudio ..... but now it will be JLCPCB. It's my firist order. Unimaginably, my first order , shipping ,free !!!! Just cost $2 !!!! Can't unbelive this. I order the senond, shipping ,display $18 to Candan. The customer service told me: free shipping just for first order. Here is quick review, in point form; · Great web site and is update. Can actually see PCB manufacture process of order, tracking, design, etc.. everything is in one place. Nice. · 5 days to arrive at my door, from time of order. I am in Candan.· PCBs packed very well. · Silks screen is very detailed and 'fine' · Price is the cheapest... · Shipping is with DHL, which i like. I like red I have a new try and choose a red mask. I like red, it’s bold and eye-catching. Green with white silkscreen.green is probably the best of all the available colours in practical terms. Below boards from JLCPCB. They were all cut perfectly to size, all perfectly etched and drilled, tinned. Inspection of fine traces on the board for defects is best done with some form of magnification. Electrically, the SIMM tested fine.
  8. Hi all, I found a ver very good and really cheap pcb service! Its called PCBWay, and they have cheap 2layer 10x 10x10cm pcb for just $5! and shipping to the Netherlands was just $7!(china post) And they have real good and very kind customer service witch reply back very fast and every question i had got answered in not time AND they give you $5 free for your first order! Pcb's look good and came fast. All pcb's where exported with eagle. I got 2 extra pcb's(win win) probably if a pcb fails check or something. I used blue silkscreen with white text for the pcb and also bought some project pcb's with holes wich i got in 5 collors and look absolutly great! The blue silkscreen looks absolutly perfect, its really perfectly alligned! and the text looked good, it looked a little bit blocky but still it looks great! I ordered pcb's for a adafruit solar charger clone as i needed 9 of them and just didnt have the money to buy them. Since i already had all the components i needed exept the pcb's i just bought the pcb's since their charger is opensource and created them my self to save some costs.(i'll probable sell the last one i dont need) At first i thought if i had to buy the comonents also it all would be more expensive but i calculated if i wanted to create 10 solar chargers and bought all components from aliexpress and bought the pcbs from pcbway i save around $30 to my suprise!!!!!(first time self build a product is cheaper then buying) The chargers are for my solar powered raspberry pi zero powered wireless timelapse and livestream camera's, witch will be mounted in my backyard pointing at bird homes and one as security camera for my back yard gate to watch intruders. I already finished one of the charger and it looks really really impressive with the blue silkscreen! I'll maybe upload some pics of my assembled pcb's and bare pcb's soon for other peaple to check and i am probably going to clone the adafruit powerboost 1000 charger too!(because its cheaper offcourse, i still bought a lot of products from adafruit so i am still supporting them). The pcb's are of good quality, no broken or half traces, all boards are straight and not bend, all boards got the silkscreen and white text right so they just look amazing! I really really recommend this service to everyone and i am defenitly going to try their 4 layer too some time!! And they also offer cheap assembly services so maybe i will try that sometime too! Since i am very very and very happy with my pcb's i am defenitly buying from them again and again in the future and recommend them to everyone! So now i want to know who else used this service and had good experience or wants to try it out? hope to hear from you all!
  9. As a hobbyist,I learned so much from here and thanks very much for everyone. As pcbway manager,here is a good news I think will help hobbyist. In order to express our gratitude and help electronic hobbyist save cost,now we build a page to sponsor electronic hobbyist's pcb project (up to $100 coupon to your account),you can get the details from our sponsorship page.If you have any questions and suggestions,please reply to me here. The sponsorship link is here, (If this link break the rule,please tell to me and I will delete it,thanks Administrator)
  10. Two questions: 1. How to guarantee the quality of BGA and QFN ? 2. What shall be minded for halogen-free process ?
  11. YuCha Electronics Co.,Ltd , a leading PCBA Company offering high quality Printed Circuit Board Assembly moved its pcba factory from Taiwan to DongGuan City in the year of 1999, focusing mainly on PCB Assembly & PCBA fabrication, and have our own PCB Board manufacturing lines. Yucha owns 25 years of electronic experience in China of PCBA manufacturing, we have been always working on improving PCB assembly and PCBA soldering technics, engineers gain knowledge and strength with us together. for more information visit: http://www.joga-pcba.com
  12. PCBGOGO -Custom PCB Prototype Manufacturer ,is provide the best ever service in quick-turn PCB prototype, low & medium volume and low cost.The best PCB(printed circuit board) buying experience in the country today .PCBGOGO is committed to provide short and accurate lead time for PCB manufacturing job.The quickest lead time PCBGOGO can do is 12hours. And PCBGOGO has Instant online quote and detailed tracking system which will inform you the each process of the PCB boards. www.pcbgogo.com/f And now big promotion is coming.don't miss it.
  13. (This is my 1st post in this forum and I will post many post in the near future. ) Printed circuit board design software This electronic design software is a license software professional edition. This is a PCB Wizard Professional edition with learning samples. This printed circuit board design software uses latest transistors, ICs, Resistors, Condensers, Triacs, Logic gates, Input also output components, digital meters, analog meters also oscilloscope also includes many type of Pin types. Just like SIL, DIL, and DO Etc. This printed circuit board design software[highlight #000000][color #000000][/highlight] packages includes 01 PCB Wizard Professional Unlimited Edition 02 Livewire Professional Edition 03 Bill of Materials Database Update 04 Examples Here is the download link of printed circuit board design software. http://tinyurl.com/zq9sd8f I will upload it soon. It’s Includes new facility to do more works. In the near future we will upload it to this playlist and wait for the latest update.
  14. I have a PCB fabricator line which is specialized for electrical DIY lover or electrics engineers. All the fabricated PCB will be tested and ensured the quality. The fabrication of 5 pics usually costs 12-14 bucks for 100mm*100mm 2 layer board depending on the design. If you need the PCB very soon, I can get it for you as soon as 5 working days. Here is the basic stand of my fabrication: Layer: 1-10min trace width/ distance: 0.1mmmin via diameter: 0.15mmcooper thickness: 1oz/2oz/3ozblind/buried via: unavailableSolder Mask colour: Green, Red, Yellow, Blue, White and BlackIf my services suit to your needs, you can contact me by Email. I can get you a coupon or some nice gift from fabricator partner. Email: certainly.90@gmail.com
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