Building a DIY Curve Tracer - Page 1
Forum section: electronics / projects

author: Dbldutch
author_rank: Regular Contributor
timestamp: October 30, 2021, 11:16:49 am
content: We have a small team that is building an open source DIY Curve Tracer. Not a Tek577 replacement per se, but it can do most measurements and is a lot better than anything else we found. We are close to the final stages and have a fully operating CT that I'm making measurements with.If you're interested, have look on my blog. Eventually everything will be shared on Github and here too but we'll wait until we have finished the project.https://www.paulvdiyblogs.net/2021/03/building-curve-tracer-version-3.htmlIf you have comments or inputs, leave them here to share because my Blog is limited in that respect.Enjoy!Paul

author: Dbldutch
author_rank: Regular Contributor
timestamp: July 11, 2022, 02:44:25 pm
content: The Curve Tracer project is now finished and we have published all information needed to build an instrument yourself.The description of this version is here:https://www.paulvdiyblogs.net/2022/06/the-vba-curve-tracer.htmlThe Github with all files is here:https://github.com/paulvee/VBA-Curve-TracerIt would be nice to share your experiences here.Enjoy & success!Paul, Mark and Bud

author: mawyatt
author_rank: Super Contributor
timestamp: July 11, 2022, 03:23:50 pm
content: Very nice project!Well doneBest,

author: pizzigri
author_rank: Regular Contributor
timestamp: July 13, 2022, 09:27:13 am
content: I was always interested in this project.i can make the order of the four boards at JLPCB - problem is, I will get get five sets, and if I can get at least another two guys interested, willing to purchase one set each at cost + shipping, that would be perfect. I do not want to profit, just cut a bit of slack.I am located in ItalyFranco

author: RichardM
author_rank: Frequent Contributor
timestamp: July 14, 2022, 01:10:12 am
content: I would be interested in a set of boards. Only issue is I am in Australia and not sure what the postage cost from Italy would be?Richard

author: dl6lr
author_rank: Frequent Contributor
timestamp: July 14, 2022, 06:57:57 am
content: @Franco:I am interested in one set. Germany. Do you plan to have the boards populated at i.e. JLCPCB?

author: JeremiahStover
author_rank: Newbie
timestamp: July 24, 2022, 02:40:35 am
content: I would be interested in acquiring a set of the boards - USA

author: RichardM
author_rank: Frequent Contributor
timestamp: July 24, 2022, 01:08:10 pm
content: I am still interested

author: kermitfrog
author_rank: Contributor
timestamp: August 02, 2022, 01:53:01 am
content: Does anyone have a set of boards they can sell me? (I'm In the USA)

author: randyrho
author_rank: Newbie
timestamp: September 07, 2022, 05:46:06 am
content: I'll go in for a set of boards. Looks like we have 3 in the USSA now.

author: ZigmundRat
author_rank: Regular Contributor
timestamp: September 07, 2022, 12:24:59 pm
content: Alsointerested inwould commit to a set of boards. Not that I don’t already have too many projects…

author: pontif_
author_rank: Newbie
timestamp: September 07, 2022, 01:42:14 pm
content: Very cool project!If anyone in Europe purchases more boards I'm also interested in a set

author: Swake
author_rank: Frequent Contributor
timestamp: November 15, 2022, 03:24:03 pm
content: I appreciate the hard work behind the development of this. Very tempting....Would anyone have an estimate about the total cost for all the components?

author: MikeK
author_rank: Super Contributor
timestamp: November 15, 2022, 04:25:09 pm
content: Very nice project. Well done front panel.

author: Dbldutch
author_rank: Regular Contributor
timestamp: December 21, 2022, 08:16:15 am
content: Now that I completed my final version of the CT, I have a few parts available. I sold all the parts and boards to a DIY builder in Brazil.I have a bare final Front board and also have a previous revision Front board with 95% of the required components on it, or for it.(I'll remove the relay)The switches and rotaries can be taken off the board using a heat-gun.I've done that successfully myself on another revision and using the parts now on my final board.Besides that, I have a few of the transformers, the main capacitor and a few other bits and pieces available.Send me a PM if you're interested.

author: parasole
author_rank: Contributor
timestamp: January 12, 2024, 09:11:40 am
content: Hi folks,anyone would be interested in a set of PCB? I am in the same waters as pizzigri, willing to place an order with JLCPCB, however, 5 sets are just to much for meIf there are at least a couple more guys to share the cost, let me know, I am currently located in Sweden so I will post from here.BR//

author: Edison
author_rank: Frequent Contributor
timestamp: January 15, 2024, 11:10:59 pm
content: Quote from: parasole on January 12, 2024, 09:11:40 amI would definitely take one set and I can try a few friends - all from the Czech Republic

author: Edison
author_rank: Frequent Contributor
timestamp: January 15, 2024, 11:40:28 pm
content: Quote from: Dbldutch on October 30, 2021, 11:16:49 amDbldutch absolutely gorgeous project, I've been interested in the curve tracker for a very long time, I've built a few simple ones myself, but this is the best I've seen. I wanted to build something better like TEK three years ago (I don't have the money for the original), unfortunately it didn't work out......I originally wanted to make a curve tracker as well, I made a design, ordered parts and waited. I thought I was waiting too long and started looking for the package, the carrier didn't deliver the package and it got lost - it took me a year to get my money back. In the meantime, I had the opportunity to buy a new NI210, unfortunately it is only up to 60V, its generator does not produce a step waveform and it is not possible to test transistors in the classic way.I bought it on the one hand at a 30% discount, and because it was not working, I got another 50% discount. The repair was quite wild because the manufacturer burned all the markings of important parts with a laser.

author: parasole
author_rank: Contributor
timestamp: January 16, 2024, 10:23:08 am
content: Quote from: Edison on January 15, 2024, 11:10:59 pmGood to hear, then let me know your total final... I uploaded all gerbers (4 PCB) and totaled 112,14 Euros, which in case we find a new home for each set, would be 22,428 Euros + postage for a set...update: I think we may skip the back panel...

author: Edison
author_rank: Frequent Contributor
timestamp: January 16, 2024, 01:15:31 pm
content: Quote from: parasole on January 16, 2024, 10:23:08 amI have sent out emails, so we will wait for a response. Yes, we can do without the back panel if it makes production cheaper - good idea.

author: Edison
author_rank: Frequent Contributor
timestamp: January 17, 2024, 11:00:13 pm
content: Hi parasole, we have another interested person from the forum - mweymarn 1 set, so far only one of my friends has contacted me and he doesn't want to because he built a simple tracker similar to my NI210 from Arduino, the other friend wrote back to me that he will look at the email with the information he's coming home and hasn't heard from me yet.

author: parasole
author_rank: Contributor
timestamp: January 18, 2024, 09:14:25 am
content: Hi Edison,so by now, we are 3, not bad, although could be betterI did not pay attention in my previous quotation that shipping was the most expensive option, so now I excluded the back panel and selected the cheapest shipping option, the result is much better, 17,25 + shipping from Sweden in case of a 5-person order...

author: eliocor
author_rank: Unknown
timestamp: January 18, 2024, 11:14:37 am
content: I would be interested in, but I'd prefer with the back panel too...

author: parasole
author_rank: Contributor
timestamp: January 18, 2024, 12:30:06 pm
content: Quote from: eliocor on January 18, 2024, 11:14:37 amThe back panel is basically a plain sheet... sure I may add to the order if everyone would agree...

author: mweymarn
author_rank: Contributor
timestamp: January 18, 2024, 01:47:23 pm
content: Quote from: parasole on January 18, 2024, 12:30:06 pmI would prefer to have the back panel included as well...

author: Edison
author_rank: Frequent Contributor
timestamp: January 19, 2024, 12:27:07 am
content: We are complete, 5 sets have been given, we just have to decide how to do it with transport and payment.

author: parasole
author_rank: Contributor
timestamp: January 19, 2024, 05:42:08 pm
content: Quote from: Edison on January 19, 2024, 12:27:07 amPerfect, so it looks as follows:mweymarn 1 seteliocor 1 setparasole 1 setEdison 2 setsI will move to private for the rest of the details, after all this is a technical thread

author: parasole
author_rank: Contributor
timestamp: February 08, 2024, 08:39:26 pm
content: Finally arrived

author: watchmaker
author_rank: Unknown
timestamp: February 24, 2024, 02:02:25 pm
content: I just ordered a set of 5. USA.

author: patapat
author_rank: Newbie
timestamp: February 25, 2024, 10:23:58 am
content: If anyone in Europe will start a new order, I'd be interested to take a PCB Set. Pls PM

author: Edison
author_rank: Frequent Contributor
timestamp: February 25, 2024, 11:50:31 am
content: Quote from: patapat on February 25, 2024, 10:23:58 amPCBs are made to order, they are not ready in a warehouse so that they can be left over, therefore the minimum order is 5 pcs.Delete your inbox, they can't send you PM

author: cosmicray
author_rank: Frequent Contributor
timestamp: February 26, 2024, 01:31:04 am
content: Quote from: watchmaker on February 24, 2024, 02:02:25 pmAre all 5 spoken for ? If not, I would like one set. USA also.

author: receng
author_rank: Newbie
timestamp: February 28, 2024, 05:05:46 pm
content: Hi,I am interested in the PCB set. Do you still have one slot available on this?I just learned about this project yesterday.Thanks!

author: watchmaker
author_rank: Unknown
timestamp: March 01, 2024, 12:03:46 pm
content: Yes, But.....I screwed up and only ordered the back panel (very new to this, who the Hell was Gerber?) (actually I am curious). I will talk with PCB and order the complete package (sans back panel) on Monday.I KNEW it was too easy!

author: bostonman
author_rank: Super Contributor
timestamp: March 01, 2024, 02:02:14 pm
content: Gerber files are the files used by the PCB house to build the boards. They contain all the information needed for the machines to build the boards (vias, pads, sizing, etc...)

author: watchmaker
author_rank: Unknown
timestamp: March 06, 2024, 07:00:51 pm
content: I got the order straightened out. The other 3 boards are on the way! (I have the rear panel).

author: Cxturbo
author_rank: Newbie
timestamp: March 11, 2024, 02:48:26 am
content: @Watchmaker I am tentatively interested in a set of boards as well. Did you order the main and front PCB's with the SMD parts soldered?

author: watchmaker
author_rank: Unknown
timestamp: March 23, 2024, 08:56:03 pm
content: OK. the Boards are in.Let me know if you want a set. With shipping to me it will be $55 USD per set plus shipping to you. Overseas is not an issue for me. I have 4 sets, one I think is spoken for.

author: 77Ribetts
author_rank: Contributor
timestamp: April 26, 2024, 05:12:56 pm
content: Hi i am keen to buy a set of boards especially more since the BOM price of 600 eurosis for 10 curve tracers not 1.. although i am still not sure if anyone could clarify this i would be grateful

author: pizzigri
author_rank: Regular Contributor
timestamp: May 23, 2024, 08:18:38 pm
content: Hi everyone, I had long COVID and huge health problems... sorry! As a matter of fact, it's been some time to this forum.600 euro for 10 sets of parts?? I was under the impression it was the price for one. If that is NOT he case, 60E + 55 for the boards is a bargain.I'm still interested...

author: Giallograle
author_rank: Contributor
timestamp: July 03, 2024, 12:28:55 pm
content: Hi, I'm interested in a set of boards, shipping to the UK if they're available.Please let me know.

author: watchmaker
author_rank: Unknown
timestamp: July 03, 2024, 12:41:56 pm
content: Will PM you.

author: mrisco
author_rank: Regular Contributor
timestamp: July 03, 2024, 01:09:21 pm
content: The precursor of the modern embedded system instruments:The instrument system/software is entirely housed inside of the FPGA of the DE10-Nano, no additional system/PC/computer is necessary to operate the instruments but multiple PC's can connect to the FPGA board instrument server as clients to start the instrument software and get data. Additional ADC/DAC and signal conditioning electronics connected to the DE10-Nano were required.

author: Waky79
author_rank: Newbie
timestamp: July 11, 2024, 07:56:18 pm
content: Hey Dewey,I'm in the US and would be interested in a board set if you still have any?

author: watchmaker
author_rank: Unknown
timestamp: July 11, 2024, 11:17:25 pm
content: Quote from: Waky79 on July 11, 2024, 07:56:18 pmPM'd

author: Waky79
author_rank: Newbie
timestamp: July 20, 2024, 03:46:41 am
content: Thank you, Dewey, for the board set. Much appreciated.For others that come along: expect to spend around $600 USD (2024) on the total project.I have shopped, and shopped, and shopped for the required parts.Ultimately I ended up with $95 in parts at Newark and most of the rest at Digikey. This maddening effort saved me around $85 USD in the end.Absolutely do not buy the 6 banana jacks at Digikey @ $6/ea. Newark has them at $2/pc.Even with the separate shipping you come out way ahead!Newark also has some of the expensive switches/etc for a fair amount less:SP3T switch M2024SS1W03:Newark has 5 in stock with more expected Dec 2024. Digikey has zero and lists it as obsoleteM2024SS1W03-BA is an equivalent, with just a plastic/rubber bat hat as the only difference.It is also discontinued; As of July 20, 2024 Digikey has 13 left in stock. Newark lists it as NLA.This SP3T has been surprisingly difficult to match.Rotary switch MRA112 is obsolete, limited stock..Digikey has 120 as of July 20, 2024.MRAN112 seems to be a new replacement. I cannot confirm.Newark has the rotary switch 51P22-01-1-16N for about $8 or so less than everybody elseNewark had the better prices on 1 or 2 of the transformers.There were a few others that stood out, but you get the idea.As for the special 5 row test sockets --- good luck. The Aliexpress link in the BOM seems to be the only optionEDIT to add:I can't stress this enough, but don't waste your money, patience, or time on P1 & P2 on the front panel. These are an abortion that will not accept anything put the stiffest of wire with far too much effort.Just avoid the expense and headache and solder your wires direct to the board. I wish I had.Found on the Front panel BOM:Amphenol NQ0321100000G, Digikey 609-5214-1-NDALL OF THIS and more has been fixed in the BOMs, with more that has been fixed and more coming.Front board BOM has some gotchas with the Digikey part numbersDigi-reel part numbers instead of cut tape, which adds $7 to the cost of eachline 53:$7.10 vs $0.102019-RK73H2ATTD2051FDKR-ND ----> 2019-RK73H2ATTD2051FCT-NDline 59:$7.10 vs $0.102019-RK73H2ATTD2493FDKR-ND ----> 2019-RK73H2ATTD2493FCT-NDline 61:$7.93 vs $0.93497-14376-6-ND ----> 497-14376-1-ND

author: AlastairKnights
author_rank: Newbie
timestamp: July 29, 2024, 03:30:06 pm
content: I would also like a set of boards and panels if this helps make up the numbers. I'm in the UK. Thank you.

author: zygoma1
author_rank: Newbie
timestamp: August 06, 2024, 10:38:25 am
content: Please put me down for a set of boards & panels too.Tim (UK)

author: AlastairKnights
author_rank: Newbie
timestamp: August 06, 2024, 10:58:27 am
content: NB JLCPCB are quoting £49 GBP including delivery to the UK for a set of front panels, front and main PCBs, or £59 if you want the rear panel as well. £20 of this is shipping, so five sets of boards work out at only £30 or £38 with the rear panel. You could 'panel' the boards into a single PCB to save a bit more, but run the risk of errors when merging the Gerber files. Give the total project cost, buying your own set of boards might make sense.

author: watchmaker
author_rank: Unknown
timestamp: August 07, 2024, 10:47:05 am
content: Interesting, they charged me $50 for shipping alone. And then $200 for the 5 sets of boards. Price drop? Currency exchange?

author: AlastairKnights
author_rank: Newbie
timestamp: August 08, 2024, 01:38:10 pm
content: I've now ordered the boards and the cost for a set of 5 including the rear panel was £37.81 for the boards, £25.24 shipping and £12.59 customs/taxes. The Yuan/GB Pound exchange rate has dropped from 9.3Y to 9.1Y in the past week so the original quote seems about right. PCBWay are quoting $170 just for the boards, so it's worth shopping around!

author: tatel
author_rank: Frequent Contributor
timestamp: August 08, 2024, 05:47:57 pm
content: If you think it would be possible to send a complete set of 5 including rear panel, I would gladly take it.

author: AlastairKnights
author_rank: Newbie
timestamp: August 08, 2024, 08:41:08 pm
content: Do you mean one set of 4 boards, ie the Front Panel, Front sub-PCB, Main PCB and Rear Panel? It also depends of the shipping cost, particularly as the UK has left the EU.Suggest that we wait until my boards have arrived and I checked them over and I'll post an update here.

author: tatel
author_rank: Frequent Contributor
timestamp: August 09, 2024, 07:43:04 am
content: You are right, sorry. No problem to wait. I think probably Royal Mail will be the cheapest, other couriers put outrageous custom paperwork fees. Spanish Correos will also put a fee, but it will about a third of, say, FedEx.Edit: of course, if you find there's anything that bothers you, please say so, and I'll look to order another set of 5

author: watchmaker
author_rank: Unknown
timestamp: August 09, 2024, 11:56:10 am
content: Quote from: AlastairKnights on August 08, 2024, 01:38:10 pmAh, so the cost to you is the same as was the cost to me (38 pounds= $48 USD then 12 pounds for VAT). I have 2 sets of the boards for $55 plus shipping ready to ship. This reflects my total cost delivered to me in the USA.PM me.

author: Waky79
author_rank: Newbie
timestamp: August 11, 2024, 02:31:34 am
content: I have the following extra parts for sale for anyone that wants to save a few $All prices are USD$Selling as a set, not willing to sell parts individually.Please PM me if interested.987-1335-NDP260T-D1BS3CB100KPOT102, Voltage control pot, $13.94 from Digikey53CAD-E16-B20L-ND53CAD-E16-B20LPOT20, Offset pot, $11.13 from Digikey2x DUT sockets,P70, P71$13.These cost me $26 shipped for 4. Minimum order is 4, so you are stuck with 2 extra.They're nice and fit perfectly. I was worried about getting junk from Aliexpress or getting nothing at all.........Front panel, in green, unpopulated. $10 or so?$50 in parts$35 + actual shipping cost to your location. I will do whatever I can to keep the shipping cost minimal.

author: zygoma1
author_rank: Newbie
timestamp: August 14, 2024, 04:28:25 pm
content: Hi Alastair,If you have a set of boards available (inc. rear panel) I would love a set.Cheers,Tim

author: tatel
author_rank: Frequent Contributor
timestamp: August 15, 2024, 02:17:08 pm
content: Following the directions kindly given by Alastair, I just ordered a set of 5 (x4) boards. If there are some people looking for some set(s) I'm willing to send it within the EU.I will let you know more details after delivered to me from JLCPCB

author: AlastairKnights
author_rank: Newbie
timestamp: August 15, 2024, 04:05:54 pm
content: And just to add that if you are in the UK then I have a few sets left of all 4 boards. £15 plus packing and postage (about £7 for delivery in the UK, so £22 in total).However, if you are outside the UK it may be less hassle and only a bit more expensive to simply order a set direct from JLCPCB or similar. Mine took 7 days and only cost £75 for 5 sets delivered and tax paid.Alastair

author: tatel
author_rank: Frequent Contributor
timestamp: August 16, 2024, 01:22:00 am
content: Well, JLCPCB has a doubt about the main board:QuoteI think the answer is yes but better to ask here before. Please see atachment

author: AlastairKnights
author_rank: Newbie
timestamp: August 16, 2024, 07:35:29 am
content: That's strange.Can we just double check that you've sent the correct files and process? From the GitHub sitehttps://github.com/paulvee/VBA-Curve-Tracer/tree/main/Main%20Board/Gerbers, download the 9 Gerber files and ignore the 'Desc.txt' file. Zip up the 9 files and upload to JLCPCB. Use the default options and you should be good to go.I did run the JLCPCB Design Rules Check and it had various warnings - see copy attached. However, these were either not relevant or simply being a bit cautious. I've since carefully examined the physical boards against the DRC warnings and the boards are fine. I've included a photo below of the actual main board area that is being flagged.Does that help?Alastair

author: tatel
author_rank: Frequent Contributor
timestamp: August 16, 2024, 11:21:15 am
content: Quote from: AlastairKnights on August 16, 2024, 07:35:29 amI just downloaded all as a zip file, uncompressed it, then got into each of gerber directories and used:zip file_name.zip *So all files in that directory got into the zip file I sent to JLCPCB, including "Desc.Txt". Please see attachments. Upload was accepted, then an email confirming it had been reviewed with no problem came in.Some hours after that, new email asking that question came in.I see both front and back panels have a .GKO file. Neither the Main nor the Front boards have it. Don't know why. I think it's quite obvious that soldermask limits define the shape of the boards. I think the person putting it into production is perhaps more wary than the other persons putting previous orders into production.But, being the first time I deal with gerber files and, moreover, not being a native english speaker, I thought it would be A Very Good Thing (TM) ask here before answer. The part about cutoffs blew my fuses to be honest. Unless I'm wrong about the meaning of "cuttoffs", I think there are none, at least none not defined by the limits of solder mask. Is that right?

author: tatel
author_rank: Frequent Contributor
timestamp: August 20, 2024, 11:12:54 am
content: Well I got answer from Mark Allie on the comments of paulvdiyblogs.net, here's the link, you can go there to read the complete answer:https://www.paulvdiyblogs.net/2022/06/the-vba-curve-tracer.htmlQuoteQuoteSo now we know what to say if this question arises again with any PCB house.

author: tatel
author_rank: Frequent Contributor
timestamp: August 30, 2024, 01:57:02 pm
content: Boards are here. If somebody in the EU "needs" it please PM me. All 4 boards-> €15+shippingEdit: sorry first picture is now the last one after uploading...

author: kastor73
author_rank: Newbie
timestamp: October 16, 2024, 12:24:29 pm
content: HiI can't send you PM for some reason.If you have spare boards , I would like to buy one set.Marko

author: AlastairKnights
author_rank: Newbie
timestamp: October 16, 2024, 01:57:57 pm
content: Hi Marko, I've sent you a PM confirming that I've got two sets left. Alastair

author: sarahMCML
author_rank: Regular Contributor
timestamp: October 17, 2024, 12:03:14 am
content: Hi Alistair,I'd like your last set of 4 boards please, if you still have them.Regards,Sarah (in UK).

author: colincci
author_rank: Newbie
timestamp: October 31, 2024, 07:09:04 pm
content: Does anyone know what the correct part number is for the plastic enclosure? I have been through all the board BOMS and the github most of the blog and I can't locate it.Thanks in advance

author: AlastairKnights
author_rank: Newbie
timestamp: October 31, 2024, 10:37:51 pm
content: The box is a Hammond RM2095M, Box ABS Gray 9.843"L X 7.087"W, DigiKey Part No. HM1100-ND and is listed in the "OffPCBPartsBOMRev2c.xlsx" spreadsheet.

author: colincci
author_rank: Newbie
timestamp: November 14, 2024, 03:12:07 am
content: In case anyone is interested, I purchased a set of 5 each of the four boards from JLCPCB. I have four sets of the four boards available to anyone who is interested. I am located in Canada. The cost is 35 CAD for each set of four boards plus shipping.

author: tatel
author_rank: Frequent Contributor
timestamp: November 16, 2024, 11:23:09 am
content: Quote from: tatel on August 30, 2024, 01:57:02 pmAfter finishing some work that retained me far away from my workshop, I finally got@kastor73boards sent. Correos people helped me quite a lot, and as a result, it was shipped not as an international light package, but as a certified letter, with tracking, insurance and signed delivery, all of it for a little less money than an international package.I'm now quite confident that any EU guy wanting to build this curve tracer could get the four boards for about €35, shipping included.@kastor73: after you receive it, would you mind, please, to let me know how it worked?

author: smartins
author_rank: Newbie
timestamp: February 02, 2025, 04:22:33 pm
content: I am interested in two sets of boards. Located in EU.

author: tatel
author_rank: Frequent Contributor
timestamp: February 02, 2025, 09:43:11 pm
content: Sorry, last two available sets of 4 boards were shipped a little more than a week ago

author: Pro Amp Solutions
author_rank: Newbie
timestamp: February 09, 2025, 02:01:55 am
content: Hi VBA Curve Tracer Enthusiasts,I just received 30 complete VBA Curve Tracer board sets and they look great! I am building two units for my shop and recently sourced all of the components in the most recent BOM's without any issues other than just a few substitutions for like components. I am selling 28 PCB board sets (Front, Back, Main, Front Panel). Each board set is $49 plus shipping.My Best,John

author: Pro Amp Solutions
author_rank: Newbie
timestamp: February 12, 2025, 01:29:18 am
content: Following is the link to the PCB sets on eBay:https://www.ebay.com/itm/156693247722

author: Dbldutch
author_rank: Regular Contributor
timestamp: March 13, 2025, 09:04:49 am
content: Nice to see a number of Makers building our Curve Tracer.We see that as a compliment for the work we put in!Right now, most of what is reported here is the procurement of the PCB's, however, it would be great if you would post some results as well, like the completed instrument or the stuffed boards. Just so others could get motivated to start this project as well.BTW, if you have issues getting parts from the published BOM's on my Github, feel free to post an issue there so we can try to resolve that.As you may know, designing something is bliss, manufacturing it is hell...certainly over time.Good luck with your projects,Paul

author: clytle374
author_rank: Regular Contributor
timestamp: May 13, 2025, 11:29:45 pm
content: I'm trying to build a BOM on digikey right now, have a bunch errors loading it. Not sure if I should keep fighting it, or just give in and start over. I'm about ready to just order the stuff and figure out what I missed later. I have the following issuesP1 and P2, they don't sound so good from the comments, but when I entered the part # into digkey it shows a 3 position part, and the picture shows a 5 position part. Looked like crazy for some lever action spring clamps, or zif sockets.The days for newark having the banana jacks for $2 is over, now it's $5 vs $5.97Several of the swiches that are out of stock at digikey are in stock out mouser, for about the same or less. Now to see if my mouser curse breaks. lol