Dual Display Capacitor Tester my next project

I was under the impression that you’ve already completed that project since (my assumption was because) you’ve had the board etched well before the Ultraprobe boards. Well…they both work the same way and should be giving you pretty much the same results. If I were you I would stick with the adjustable version since you’ve already made the PCB for it and after all, being adjustable, It’ll will give you a chance to have a “broader understanding” of it while experimenting with the adjustments “sweet spot” and after completion and getting “acquainted” with the “ins and outs” of how it behaves at certain settings and cap styles and values, you can then decide to either settle with it or build the fixed version which ain’t much different than the adjustable one anyway. At the end of the day the decision is yours, your components, your time. 🤨 

@ovi4 Yes I was on a roll making more than one PCB and this board setting in a box of things to do.

I just got done watching video 107 and getting ready to watch video 108.

Paul did say he had a newer leaking capacitor tester that he was working on, and I am not sure if it was the fixed one or it is still to come.

I see I need to go back some videos to find out how to power these checker that he talked about in video 107.

Also remember I am totally new to SMD projects.

To power up any of the 2 cap leakage tester variants you’ll need either your own 27.5V PSU mains powered (should you want to) or go back to Video 74 Where a 27.5V DC booster is presented as suitable for the cap tester (should you want to power it of 18650 Li Ion cells. But keep in mind that do to the technicality involved the booster needs to be paired with another PCB/circuit called “The lockout Circuit” and the project can be found on Video 84

@ovi4 Thank you, I was just looking for how to power this tester.
I have many 18650, but for now I use my bench power supply, thank you.

@larry_n7luf PS: just remembered that I had to make a modified version of the PCB for the “DC booster” since I’m most comfortable to use 1206 and 0805 rather that the extra small components that were employed and suggested on the project even though I still use those sizes on certain projects were miniaturization is “the only way” and one good example of super miniaturization requirement is when building the TDR project that was presented on YouTube and MCL Talked about on the latest video on Patreon.

@ovi4 I may have to do the same, as my eye and hands have been a little poorer these days.
I am glad Paul is making things with bigger parts and I am good with 1206.
Being shaky when parts are very close, I end up adding solder to other parts and have to watch out for solder bridges.

I do use the same soldering tip as Paul uses, but some time I have more solder up the tip that add more solder that I want.

Maybe time for a new tip.

@ovi4 I also been waiting for Paul to make the artwork for this tester. Do you know if he has a finished video of this tester?
Is video 108 the last video on this project?

As it stands, there has never been any artwork released for the Cap tester (that I’m aware of). However, I remember in one of the recent videos (among those for the ultraprobe) MCL has briefly mentioned that (at some point) “he might” go back and create some art work for some of the past projects using the same Decal technique.

@ovi4 I have been looking how Paul powered his Dual Display Capacitor Tester and what I have seen, it looks like he is using batteries.

@larry_n7luf He showed the completed project inside including the DC Booster + The Lockout Circuit on top (all mounted to one lateral side of the Hammond box like I described on my previous post above and I’m positive that he is using some 18650s again, as described in the DC Booster video 74

@ovi4 I did looked at those videos, but I had hope to see it all together inside the Hammond box.

I have started soldering all the via on the PCB and I will worry about the box and the power until later.

@larry_n7luf Good move. Well… good luck with your second project (the cap Leakage Tester) 👍 Larry…and can’t wait to see some results… 😉 😋

@ovi4 I see I have parts coming in tomorrow and I should been done with the probe in a few days…Yea!

I have all the resistors soldered on the PCB, but missing 4 different resistors that is ordered.

I do have a question about cleaning off the flux from the PCB.
Paul said he washes the PCB with lacquer thinner, but some parts should not immerse in the thinner.
I believe tantalum resistors was one that should not be immerse.

What parts should I be careful when cleaning?