Gough Lui's Blog - All Comments

RE: The Result of Answering a Question About T-shirt Size ...

phoenixcomm — Thu, 23 Apr 2026 22:06:27 GMT

Congrats!! but when you get 'Magic Smoke' it normally leaves a 'Jesus Trail" ~~Cris

RE: The Result of Answering a Question About T-shirt Size ...

DAB — Tue, 21 Apr 2026 19:04:30 GMT

Well earned Gough.

RE: The Result of Answering a Question About T-shirt Size ...

robogary — Mon, 20 Apr 2026 13:37:48 GMT

Congrats. Did you notice something special about the caps ? One ballcap is mesh, for summer. one ballcap is fiber, for winter.

Taken from observing other old timers mostly at boy scout camps, the enamel lapel pins are great to collect on a ball cap or straw hat of your choosing as a conversation starter.

RE: The Result of Answering a Question About T-shirt Size ...

kmikemoo — Mon, 20 Apr 2026 02:08:26 GMT

Congrat, Gough!!

RE: The Result of Answering a Question About T-shirt Size ...

embeddedguy — Sun, 19 Apr 2026 05:41:42 GMT

That's cool

RE: Open Surgery on a Keysight U1461A Insulation Resistance Tester

Gough Lui — Sun, 11 Jan 2026 11:19:19 GMT

Unfortunately, two-and-a-quarter years later after the change of screens, it seems the replacement screen has decided to go bad. At first, it went to a dim state with several dead pixels like the previous screen did. But then five uses later, the screen has gone completely dark - no image, but the unit is still workable via the Keysight Handheld Meter Logger software over USB/Bluetooth.

Unfortunately, the screens seem to be even rarer and more expensive. It seems replacing it with another OLED screen is just going to result in a few more years before they too succumb. It would likely be a lot of work to adapt it to something else (e.g. an LCD) ... so I guess mine will just have to live black-screen for now. Perhaps I'll need to reverse engineer the interface and do some translation to make it a possibility ... but I suspect that's just more effort than it's worth.

- Gough

RE: Light Up Your Life Design Challenge - Prize Unboxing

DAB — Tue, 16 Dec 2025 19:04:38 GMT

Have fun with the new toys.

Well earned.

RE: Light Up Your Life Design Challenge - Prize Unboxing

dougw — Mon, 15 Dec 2025 21:30:15 GMT

Very nice gesture - donating the scope. [emoticon:1435ff2429184e17bc948e4f19178e1e]

RE: Light Up Your Life Design Challenge - Prize Unboxing

E14Alice — Mon, 15 Dec 2025 13:52:39 GMT

It's great to see that your prize has arrived in good shape!

Congratulations on winning [emoticon:c4563cd7d5574777a71c318021cbbcc8]

RE: Light Up Your Life Design Challenge - Prize Unboxing

venkat01 — Mon, 15 Dec 2025 13:45:51 GMT

I really enjoy your posts; the visuals and the analysis are truly great.

PS: May the Force be with you as you fight the demons of exhaustion that come with creating such quality content

RE: Light Up Your Life Design Challenge - Prize Unboxing

JoRatcliffe — Mon, 15 Dec 2025 13:43:00 GMT

I'm glad everything arrived safely and speedily! Well done again on winning the design challenge!

RE: Open Surgery on a Keysight U1461A Insulation Resistance Tester

Robert Peter Oakes — Wed, 23 Apr 2025 16:14:40 GMT

Hi there , awesome repair, I am now in the position of doing this myself, only I have 2 Keysight U1461A Insulation Resistance Tester, one failed a while ago and as I had 2 I did not worry about it but now both have filed so I figured it was time to fix them both as there still valuable and good DMM's even with this flaw.

Is the repair holding up?

I have messaged the seller at Alibaba to see if they have it without the tail, it will be interesting to repeat this repair

RE: Experimenting with Supercapacitors Grand Prize – Part 2: Multicomp Pro MP710259 Electronic Load (with Fun Workarounds!)

KC7HP — Tue, 12 Nov 2024 01:10:19 GMT

Wonderful detail on pluses and minuses. I ended up buying this unit.

I cleaned-up the operator's manual so it reads properly. It is unfortunately huge. Let's see if I can share via Dropbox.multicomp-pro-MF710258.pdf

RE: Experimenting with Flyback Transformers 3rd Prize – More Than I Expected!

DAB — Tue, 27 Feb 2024 19:22:40 GMT

Well earned Gough.

RE: Experimenting with Flyback Transformers 3rd Prize – More Than I Expected!

kmikemoo — Mon, 26 Feb 2024 01:27:41 GMT

Congratulations! I hope good fortune continues to follow you! Happy holiday!