Blog - All Comments

RE: Siglent SPD1305X

michaelkellett — Wed, 10 Jun 2026 16:06:18 GMT

It looks pretty good - decent specs, decent manual with all the remote control commands described and a very reasonable price for a new one.

Looks like a very good buy at half the new price.

It has remote sensing which I think is unusual in this price range (and is a good thing to have).

Good luck with it !

RE: Siglent SPD1305X

DAB — Tue, 09 Jun 2026 19:26:57 GMT

Do you have a specific use for the supply or just needed one for your bench?

RE: Reducing Common-Mode Noise with Ferrites

DAB — Fri, 29 May 2026 21:12:23 GMT

Very interesting.

I learned how to use ferrite cores back in the 1980's when we had to send our box for EMI testing.

Initially, we failed miserably, but then we hired their engineers to consult and they showed us how to use ferrite cores to clean up everything.

A little rework and we had a box that passed.

We installed it in the helicopters and it worked fine.

RE: PicoScope 7: Overall, I am Impressed. But, What’s Your Opinion?

genebren — Tue, 26 May 2026 21:02:36 GMT

Nice write up. I tried the PicoScope 7 a while ago, in its early version, but found it quite buggy. I might have to give it another try. I noticed that for windows you need version 10 or 11, which I don't really like much. I have it on my laptop, but my main system is still running windows 7.

RE: PicoScope 7: Overall, I am Impressed. But, What’s Your Opinion?

DAB — Tue, 26 May 2026 19:47:24 GMT

I have used my Picoscope for many years, I find it very useful for quick look things.

If I need more horsepower, I have an old Tektronix 100Mhz BW scope.

It lacks all of the fancy new features, but it still gives you pretty good data for something analog.

RE: MP710086 / MP710087: Lab Bench Power Supply Quick Review!

DAB — Tue, 19 May 2026 19:18:51 GMT

Very good review.

Nice testing.

RE: MP710086 / MP710087: Lab Bench Power Supply Quick Review!

kk99 — Tue, 19 May 2026 09:22:44 GMT

Nice review. I also thought about Siglent SPD1305X or something used from series HP/Agilent E36xx, but it is worth adding this one to the list.

RE: MP710086 / MP710087: Lab Bench Power Supply Quick Review!

rsjawale24 — Tue, 19 May 2026 04:27:25 GMT

I have the same one. Works great and has a considerably faster boot time than the R&S power supply.

RE: SPICE Circuit Simulation: A Simple Explanation!

DAB — Thu, 16 Apr 2026 20:09:10 GMT

Nice overview.

I remember when the early SPICE like tools emerged.

I had already transitioned to system level designs, so I never had the need to use them.

RE: SPICE Circuit Simulation: A Simple Explanation!

genebren — Tue, 14 Apr 2026 02:32:40 GMT

This a great introductory example! KCAD is really putting some powerful tools together in one package!

RE: Researchers Create a New Technique That Produces MXenes with 160x Conductivity

DAB — Thu, 09 Apr 2026 20:11:52 GMT

It looks like they might be able to use this to detect some of these gases to make inexpensive gas sensors.

RE: SHAHE Wireless Bluetooth Digital Calipers – A Quick Review

shabaz — Wed, 08 Apr 2026 23:26:28 GMT

Updated the app for speech (this works on mobile and desktop). This actually suits me better, because now I don't need to move eye focus off what I'm measuring at all (and works left-handed, where the caliper display is upside down and not visible).

[View:https://youtube.com/shorts/NGeA4aQq0pk:360:640]

RE: Short Circuits and Continuity: Building an Easy Continuity Tester

shabaz — Tue, 24 Mar 2026 12:29:39 GMT

I'm strongly considering doing a version 2 of this project. It works well so far, but I was wondering if I ought to have added a couple of TVS diodes at pin 1 and pin 5 of the quad op-amp. Also, I was thinking of a larger PCB, with mounted right-angle banana sockets, to eliminate annoying need for off-board wiring. Any suggestions for a low-cost plastic enclosure would be appreciated. I'd also move to AA cells (the AAA last forever but may as well make use of a larger size enclosure).

Also, it would be nice to have an adjustable frequency tone, and maybe even amplitude.. could use an audio amp and a larger speaker. This would make it better for people who cannot hear certain tones easily.

Another important requirement is an LED indication (sometimes audio cannot be heard in a noisy environment) - don't know how to best design that, maybe just driven from the same monostable, or a separate monostable with a longer period?

I want to keep it non-microcontroller based.

Any suggestions/ideas welcome!.

EDIT: Might also be worth swapping out power switch to a rotary knob, with settings: Off-LED-LEDplusLowVolume-LEDplusHighVolume perhaps..

RE: SHAHE Wireless Bluetooth Digital Calipers – A Quick Review

kmikemoo — Sun, 22 Mar 2026 23:11:13 GMT

Cool tool, [mention:b0bc65b9ecdc4307bd967592f00e340a:e9ed411860ed4f2ba0265705b8793d05] . Thanks for sharing. The fractional inch conversion would be helpful. [emoticon:fbd079a1c4f748c5a234faee215de9cc] My "calibrated eye" has never been very accurate so I even use a cheap set of calipers to know what size wrench to use.

RE: SHAHE Wireless Bluetooth Digital Calipers – A Quick Review

obones — Sat, 21 Mar 2026 21:07:46 GMT

Thanks a lot, it describes what I noticed with my digital calipers, the battery gets drained quite fast doing nothing.

And the Bluetooth connectivity opens the door for lots of nice things, like automatic measurement storage