Recent Posts

1

Security / Re: Microsoft repackages apps with a telemetry .NET wrapper

« Last post by tooki on Today at 07:58:59 pm »

Telemetry is fine but Microsoft's approach to telemetry is akin to punching someone in the face and saying afterwards that there's instructions on how to say no in a filing cabinet in the basement of the local library while telling you to accept your face punching, shut up and calling you a peon.

From skimming the Twitter thread, nothing was hidden, the developer just wasn’t paying attention to things when packaging their app for the MS Store.

2

General Technical Chat / Re: Cable Management

« Last post by Kim Christensen on Today at 07:56:32 pm »

At work, we had a "test-lead closet" with brackets (ajb posted link) mounted inside. Kept things together, out of sight, and out of the way.

3

Beginners / Re: Convert US standard 115V to International 230V

« Last post by tooki on Today at 07:56:29 pm »

In order to support both 50 Hz and 60 Hz standards, the device needs to be rated to work at least within frequency range from 48.5 Hz to 61.8 Hz. This is because it needs to support allowed mains frequency variation ±3%.
…

Once again, did you read the thread? It was figured out already that the device is using switching power supplies which support both AC voltage and frequency variants on the input.

Radiolistener, can you delete your posts?

Unfortunately, that would mean him admitting he's mistaken and going by his posting history, is something he appears to be unable to do.

I find it quite remarkable how someone whose username is “radiolistener” can be so very bad at listening!

4

Beginners / Re: LM317 Based Digitally Controlled Power Supply

« Last post by Kleinstein on Today at 07:56:01 pm »

The LM317 when used as the regulator is not very accurate. This starts with the output pins / contacts and the heating of the reference and amplifier part. So a serate build regulator is often the more accurate way. Adding current limiting / regulator to a LM317 regualtor circuit is challanging, arguably more tricky than starting from scratch with OPs and power transistors.

Usually the regulation is done analog - a digital solution is rather demanding on the ADC / DAC side and still often slow.
When starting with PWM as a set signal one goes PWM -> fitler to get an analog set voltage and than goes with an analog regulator (e.g. classic PID style) from there.

5

General Technical Chat / Re: Is LinkedIn worth keeping?

« Last post by tggzzz on Today at 07:55:50 pm »

... not who reaches out to you anonymously...

Anyone who "reaches out" to me gets a tart request to stop being creepy and keep their hands to themselves.

6

Security / Re: Microsoft repackages apps with a telemetry .NET wrapper

« Last post by bd139 on Today at 07:54:21 pm »

Telemetry is fine but Microsoft's approach to telemetry is akin to punching someone in the face and saying afterwards that there's instructions on how to say no in a filing cabinet in the basement of the local library while telling you to accept your face punching, shut up and calling you a peon.

Oh also I reported that the opt-out didn't work in their debian packages a few years back. Guess what? Well they fixed the issue and deleted my ticket and then they deleted by 10 year old github account when I complained about it for a TOS violation.

That's where you stand. Happy Mac owner. At least the cage works properly and is trying to get the asshats out.

7

Beginners / Re: Analog Multiplexer-Demultiplexer Switch Vs Input Voltage

« Last post by BrianHG on Today at 07:53:10 pm »

Please read TI's or On Semiconductor's datasheet.

8

Test Equipment / Re: Multimeter selection for production testing

« Last post by Antonio90 on Today at 07:51:26 pm »

For what is worth, the Siglent 3045X seems to have two shunts, and does interrupt the current path when switching from 2A range to anything lower.

9

Thermal Imaging / Re: Help with "80 series Thermal imager" by insight vision services

« Last post by Niall135 on Today at 07:51:17 pm »

Is this all you need. If so dm your address and I'll pop it in the post.

10

Beginners / Re: Analog Multiplexer-Demultiplexer Switch Vs Input Voltage

« Last post by 2X on Today at 07:49:14 pm »

Vis range could be the same thing with the Vsw range?
Also, as I know the logic level conversion is when a chip takes for instance a CMOS voltage 12V and converted into a TTL voltage 5V or vice versa. At this chip whatever voltage will be applied between the range of Vcc-Vee will go out the same theoretically (practically little smaller because of the RDSon of the switch), so what have about to do the logic level conversion block inside the chip?