Відео

Can I possibly modify it to generate usable energy

I made one with a four inch PVC and wound from one end to the other end. About four inches long. I did not use a diode i used a old copper penny and pencil lead. Like a fox hole radio. I picked up KDKA which i was about 20 miles from down town. I also picked up short wave. Hilverson Holand. When they had broadcast. 1977. I was a senior in highschool. No more short wave broadcast like back then. There are some from cuba and HCJB . 73

I was hoping you had a simple gear set. To over speed the generator side. Idk how much of a gain that would be. I'm sure it differs between gear ratios. Would it even be worth it to bother. Theres a idea for a video.

I have a few ants in my room on my walls and sometimes on my bed think they follow me at this point and it’s VERY AGGRAVATING bc I can’t find where the are coming from

You can overcome all these obstacles. If you use cold electricity.

Thanks for this very informative video that showed me how to test my variable capacitor that is shorting out half way through turning it. I can't see any plate s touching but one wafer seems to have a slightly wider gap where it shorts out...i will dismount it from my Dx-160 and clean it in a sonic bath. Deoxit didn't help the short

سلام بی زحمت همین ویدیوبه فارسی زیرنویس شودخیلی خوب است.باتشکر

So why not a continuous rim diamond blade on an angle grinder around the mortar joints? Seems like it would take maybe 30 seconds?

I use this to test flow meter displays, it's a very handy device.

Ohhh

Delete this worthless pos video my guy

I never know what you're going to do next. Good design.

Very easy and it works! I badly need this for my garden these random people kept on entering and harvesting my veggies😣

Sorry if my question sounds stupid ... but in short .. is a 16 amp power cable better than 10 amps?

I got it sooo much better and quicker with you!! THANK YOU!!!

Zero point when you tune to higher interference levels your tapping into the scaler field of A.C that can be stepped up to a higher voltage potential for other applications such as a bigger light and beyond just make sure you always call it a crystal radio because the powers at be don't want people to know how to create it

thank you

1SS86, the performance of ultrashort wave band is much better than 1N34A. If you are interested in Diode 1SS86/Hitachi pls go to my main page.

1SS86, the performance of ultrashort wave band is much better than 1N34A. If you are interested in Diode 1SS86/Hitachi pls go to my main page.

Really appreciate your information thumbs up

Thanks for the tip.

I did test just for fun test like you and blue is not necessary, I've got best results at the edge of box cutter knife

You forgot the tuning carrot……inserted into a hole on the antenna half of the potato and twisted to tune.

It is the magnetic fields that causes the metal to spin 😂😂😂

useful info

Nice work really enjoy your work

Thanks! I appreciate all the effort you put into this series. Knowledge is power!

I’ve watched all 4 videos and found all your info and format presented very very helpful. I do feel like an incorrect prescription was implanted in my first cataract surgery (left eye). Im will be speaking to Dr again about this before my other eye is done. But, it also sounds like an IOL replacement surgery is not a good idea for reasons you 2:54 mentioned in video 4. I feel dr isn’t taking my concerns seriously. So I’m quite concerned and really don’t have another dr in area that my daughter can take me too.

Very interesting

I saw you were supposes to us 26swg on a ferrite for a crystal radio. They used 100 turns. So I don't know about that. I hear litz is the best wire to use.

Sir, I use brass brazing rods. Welding isle at hardware store... choose your diameter.

I just checked Amazon and they sell 2mm as well as 2.5mm stainless steel wire in case you wanted to try that. I originally was thinking of tig welding filler wire or gmaw electrode wire as they are available in small diameters.

I thought RF detection performance was what made a good diode. Your test setup is high audio range. Details on test setup, scope settings, amplitude, etc. would be helpful to evaluate the results. I believe the “wave stability” is an artifact of the scope sync settings rather than diode characteristics. Looks like you are using AC coupling on the scope, making it hard to see reverse current flow, if any.

Very interesting problem. Looks like you use the springiness to hold the wiper in place in your applications. Another route might be to use weight rather than springiness to hold in place; perhaps a plumbing copper pipe. I would have also rotated your base panel 180 degrees to have the adjusting ball more near me -- why do you want to reach so far?

Best/Easiest DIY Crystal Radio - No Batteries, No External Power 2024 (4K) ua-cam.com/video/fLVCqZGpv3U/v-deo.html Original Crystal Radio Wiper Upgrade ua-cam.com/video/i1otDz39nlw/v-deo.html

i forgot what is the motion of twiddling my finger, so i search "how to twiddle your finger" and the only thing that pops up is A GAME MOD NAMED TWIDDLEFINGER, AND IM SICK OF IT ALL OVER MY RECOMMENDATION

So, I have had two circuit boards on a HVAC air handler in my crawl space go. The first was four years after the install and the second a year after that. Not good since they run in the upper $500 range here in NC to R/R. I didn’t get to see the first one that was replaced the installer took it with him. The second one was shown to me and yep, the white stuff you brushed off was on many parts of the board but on the top side rather than the bottom like you cleaned. My crawl space is very humid and I know what needs to be done but it’s super expensive and I can’t afford it right now however, I don’t want to replace circuit boards every year that we have unheard of heat and humidity. Would it be helpful for me to spray contact cleaner on the board like every month would that help to keep the corrosion in check? Or am I dreaming, Are there other ways that I could seal, coat, bag, cover or whatever to prevent the board from getting too much moisture?

One question, the diodes used has a threshold before they conduct a signal that can be detected, of from 0.2 to 0.6 Volts, so they should be biased. If not, the set is cut off from the radio waves that creates signals below the floor of the diodes. I dont get this.

Variable inductor, and jfet detector may be nice to try? Also use a 18 henry or at least one henry inductor across the piezo ear phones. Water pipes make a good ground and you can use a tv antenna for am as well or one or both sides combined. Or a split antenna version. If you use a Jfet maybe an antenna to the gate and one to the circuit with common ground. With maybe a coupling 10pf capacitor in the circuit. Maybe a voltage multiplier to the piezo as well.

Looking at your video and getting ready to replace my old cable. However, the USB cable I have has a gold line instead of the one with a big black line. Is it okay to solder the gold line to the big black line here? The rest of the lines are the same in black, white, green, and red.

I own one

How do they euthanize the dog without getting exposed… a dart gun?

Well done. I will need surgery in the next 12 - 18 months and your video has been a tremendous help.

Great video, thank you for sharing!

Is this spring valve good for hot water pipes ?

Thanks so much for this! I have one that's been passed down through a few generations and then to me, but never knew how it works since some parts (the pointer and the weigh) were missing.

It's not difficult for me at all

can i messure milliamps from this osiloscope. I'm doing energy efficient some of my circuit projects so i need to messure how much current flow in my circuits

So I can receive the two most powerful stations in my area, one being 1KW clear channel, and the other being 5KW at day. But what I find strange is that we have ANOTHER station here that broadcasts at 5.5KW (daytime) yet I can't pick it up on my crystal set. The weirdest part? At night I can pickup (the more powerful) shortwave stations, including one that is QUITE far from me (around 500 miles away via skywave). Alright, well, WSM comes in at night where I live, oftentimes being EXTREMELY powerful, can I pick that station up? No. The whole thing seems weird to me. Is this an antenna problem? A set problem? Or what?

I have worn thick coke bottle bottom glasses since birth. I have seen many ophthalmologists in my lifetime. Both in post war Germany and Canada. At 20, on a holiday in Germany, I bought hard contacts. Switched to the Boston lens a couple of years later. I wore contact lenses every day for 55 years. My ophthalmologist suggested cataract surgery,. I was legally blind without corrective lenses. Do I want distance or be able to see close-up? Distance of course. I like to see mountains oceans when I travel. Both my cataract surgeries went great, no more thick glasses, no more contact lenses. I have 20/20 vision in one eye, the other 20/30. Cataract surgery was 5 years ago. I have no myopia, astigmatism has disappeared. Floaters, yes. Can't be helped. Anyone who may want the name of my eyesurgeon, text or email me. I am now 80 years old and don't mind to share my story.