Wire resistance thermal drift, winding T calculated from R 

Thanks for another informative hands-on demonstration of resistance, temperature and "catculator" wisdom.

Merry christmas to you and your cat and dog man, happy new year. Thanks for another year of great content.

Hello sir, I am from India,your videos are very informative. I have been following you through your website and then RU-vid channel since about 2014. Electronics is my hobby, I do electronic equipment repair work at home , which earns my living. I am learning a lot from you, thank you

8:30 love your Humor 😂

2:40 DGW seems to only have home made instruments. 😁👍 Happy New year to you too!

Also, most of metals (copper and few precious metals can not go supercunductive at all) at certain low temperature starts exibiting superconductivity, or simply, resistance drops to exactly zero ohms. 😊 Using the positive temperature coefficient seen in metals one can design temperature probes with relatively linear temperature/resistance curve but highly stable and repetable one. For example, widely known platinum 100ohms, 1kohms, or copper 500ohms. I have seen few variable frequency drives that can measure (with accuracy of 1-2°C) motor windings temperature using this effect, but they must be calibrated with every motor connected...

Merry Christmas and thanks for great videos all the time!

This was a very practical and useful video. Thanks!

Amazing!!! Merry Christmas and Happy New Year too.

Thanks and happy holidays.

Me and my cat wish you and yours all the best.

Merry Christmas to you, too 🎉

Thank you, something you would forget about when thinking up circuits. 😊

Happy Christmas and merry new year to you all.

Merry christmas and thank you for the video.

Happy New Year also to you, cat and the dog.

VESELÉ VÁNOCE! 😀

Danke!

Nice. Merry Christmas and a happy new year everyone...!!!

Chcem ti za toto video poďakovať a aj ja tebe prajem šťastné a veselé Vianočné sviatky a všetko dobré do nového roka, tvoje videá o elektronike sa mi veľmi páčia.

Some 1960s 40W fluorescent lamp ballasts only had 15 Ohms or less resistance. Some newer ones have thinner aluminium windings and a smaller core. The same is true for older non-chinese vs newer chinese microwave oven transformers.

Merry Christmas ❤

Merry Christmas!

Upload video every 3 days ❤ i love your videos, i alove long videos

Great video

Very interesting!

Merry Christmas

Merry Christmas 🎉

I just love the Ikea joke 😂😂👌

imagine getting a heart from diodegonewild

Temperature controlled vape boxes use the drift to keep the coil temp reasonably constant.

There's a reason the Borg say "Resistance is Futile", when things get hot, stuff dies... :P

I never knew inductors had a lifespan. Just assumed they were solid state therefore basically last for ever. 👍😎🌲❄️

I got a ballast made in GDR i think. or west germany. I dont remember what it said exactly because i installed it in the garage. its its 40w but i have 36w lamp in it. i wonder what happens overtime.

What is your opinion on those radio water meters? Example: METRA E-RM30 cooptherm cz metra-e-rm30 A teardown, and biopsy would be very interesting.

Great film material, a question that comes to my mind. How will an induction motor behave at very low temperatures? e.g. -40C?

Interesting information, thank you!Maybe you could also make a video about why the transformer or coil expected life time is shortening so much if the "tw" is exceeded even 10 °C? One could think that transformer is only copper wire and some isolation material (when not taking about oil filled high power transformers in power distribution lines) and there is only a limit when the transformer fails (insulation melts down and causes short circuit between windings) and below that the transformer life time is more or less forever.

Why don't you use your big resistance meter?

Hey I was watching ur welding machine video which was 5years ago and when will day come it will be in proper box

👍

what this balast/lighting transformer form-factor is called? I am having trouble searching for them online

Sir, today I have made DK124 SMPS 12v circuit, by looking at the datasheet diagram of IC, 12 volt is there without load and when 12v is 1A load it is coming down to 4 volt, what could be the reason for this?

You can measure low resistances, you only need 30kg of iron in a box

Hahahaha, so I assume you reviewing Ikea's latest products that they'd sent you for free to review will not happen any time soon on this channel :)

Had two cats for 12 years till coyotes. Cant say I miss cats crawling around all night, red eyes, fleas, dander, scratching everything, stink, buying food. Other than that cats lovely

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I just love when you go off with your rants about shitty manufacturing routines nowadays and all these pseudo-savings and pseudo-ecology.

Graphite! 👍

Merry Christmas!