Free Electricity from local radio station. Harnessing RF to power LEDS
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- Опубліковано 4 жов 2024
- Hey Guys, Free Power !!! Yes, how much? Not much. Today we experiment with harvesting the RF from a local radio to power LEDS and another radio.
Using a Voltage doubler and my 300' center fed dipole we harvest enough power to light an LED, but, can we power another radio with that?
Check it out !!
W1VLF
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You are stealing electricity from the radio station. That's what it is. 😄😜 Thanks for providing us with a very interesting demo.
This video bridges the gap between a foxhole radio and modern day radios. Love to see a combined unit.
NEXT PROJECT: Power a miniature transmitter from free RF power from the big antenna. Then, if you are stuck with no power somewhere in the mountains, you can send a distress signal for help!
I use a couple of germanium diodes across an led and have a short piece of wire as an antenna and have it on the dash board of my car.When I transmit on the HF bands I tune up for maximum brightness.It makes a simple field strength meter.😂73 Ian G7HFS/PA3IKH.
Keep up the great work mate 🙏
Based on your schematic
You can greatly improve the efficiency of your system
by connecting an additional wire between the two capacitors and either running it to an independent ground
or into an inductor that has an L value that is far too high for the frequency you are harvesting to get through the inductor.
Easiest way is an independent path to ground
or to a long wire running along the ground.
By adding an escape path between the two Capacitors
you provide a path for the current that is forced to go via the diodes & better than simply the path across the Caps
& of course the diodes then get to rectify more current.
Haha, Dave Ramsey show in the backround! Rachel Cruze, ken Coleman, Dave Ramsey, lol.
But seriously that is super cool that you could power another radio with an actual speaker and not just earbuds.
I’ve always wanted to build a circuit like this. It would be super cool to power up an arduino or similar micro controller. I wonder what type of antenna could be used to optimize the power received.
I used to live near a local AM transmitter and never knew it until one time I was plugging some pc speakers into my phone to listen to music, and I accidentally unplugged the 3.5mm jack half way and could hear the AM station playing through my computer speakers.
I think this is a very interesting project. You have some cool looking equipment in your shack. I have been messing with SDR radio receivers and am thinking about getting into ham radio because of all the cool things you can do. I can use my SDR receiver to tune into my local ham repeater and it’s fun to listen to.
We were talking about Joule Thief's on the BEARS repeater (Vernon, CT) the other day. I was telling the gang about a circuit similar to this I found in an old book I got back in the 90's and was thinking about trying it out but it looks like you did it for me! I still want to try this out but I don't have any radio stations close by so I'm not sure how well it will work. I think it would still be fun to experiment with anyway. Thanks for the great video!
Hello 741 ? As in the OP AMP? Part 2 is coming up today where I actually measure the power developed from a newer circuit. Sometime today. W1VLF
@@W1VLF no, 741 refers to something else entirely...long story. I look forward to watching part 2 later today. 73 N1NUG
Always wanted to try this out. Thanks for a interesting video.
Hi Darren Thanks for watching and commenting. It was a lot of fun to due.. There is also a part 2 and 3 ... Spoiler.. I am not going to disconnect from my local utility anytime soon LOL W1VLF
You should try using a bridge rectifier. I did some experiments this a little while back using diodes, including shotkey and germanium, and what I found was that the bridge rectifier actually worked the best and had the lowest amount of leakage as well as the lowest voltage drop.
Always wondered if you could harvest power sitting under the 69kv transmission lines behind my property this way.
Great ... always interesting your experiments ... the same principle as radio galena ...
Greetings from Italy.
73. Giuseppe iz0gzw.
Love your dog
I was just thinking... Would current increase if you connect a hundred of that RF harvester circuit to boost the current? Would it work like connecting AA size batteries in parallel to double the ampere capacity?
20:11 powering a 9 volt radio with a 1.5 volt voltage free source is way under voltage. Try powering a 3 volt radio instead. BTW: this project is good! I'll try connecting one of this RF electric generator to my little power bank powered by 1.5 volt AA alkaline battery, replace the battery with this RF harvester gadget and see if it could charge my phone.
I built a shortwave crystal radio with a 4 foot antenna that can tune up to 29 MHz and is connected to a 12 volt LED and tune it to 27 MHz or CB channel 38 and the LED lights up when I key up on my CB radio.
Nice AM modulation indicator ........ Well for only one station .....
A businessman in the Philippines did something like this but way bigger than what you've just shown us, according to him he harvests RF signals from everything, processed the signal and he showed that it was able to drive huge induction motor, not one, not two but several motors with varying sizes. It actually works and is now installed in a car.
Enjoyed this. Have you ever built a lightning detector circuit? Stand by one, I will just go and check your video back catalogue. 73
add a 1 F cap to the circuit charge it up and use it to store power for the radio use a radio that can be powered by 1,5 volts,
A few Han Solo Millennium Falcon moments in this video but still a great video.👍🏻🍻
well your loop vids got to me and just ordered a spool of 24 awg magnet wire to putz around with - HA ! aa8ib newbury OH
Makes me wonder if you could produce audio by this method through an opto coupler? What would produce more voltage? Longer antenna? Coil with many turns?
one of the junction points is not labeled on the circuit
Great video, Paul. I suspect some of the increase in volume on the Channel Master might have been from you coupling your body as an antenna into the ferrite loopstick on the small transistor radio. Just a guess. Thanks! Ken - WB0OCV
Is there any danger in using your body in this circuit? Maybe with a little redesign you could integrate the circuit into clothing to take advantage of any increase?
Why wouldn't you do the vultures production right off your dipole coming down and run the resultant DC voltage or alternate voltage into your place rather than bringing in to your place and then doing well that work on it seems like you'd eliminate a lot of loss and it seems to me that you could have a few of these units and then put them in put the outputs and series and even get more
its fun to make experiments , , ,
you might try using a more modern radio that uses a 1.5 Volts or less supply.
Super cool
try the "Tate Ambient Power Module" circuit.
I have a 1L6 Pentagrid Converter from 1948. Still need one? We can work out a deal.
Love the LED project. How about a video on your (in)famous IR Skybounce project from years ago? 73 N1FNE
Hi Rod .. OMG How are you doing? It is great to hear from you.!!!! Yes.. I plan on doing that in the not so distant future. Wow its been a long time.. I hope all is well. W1VLF
Seems the red led should be brighter than the white one.
Can a battery be charged? If so what about maybe a close pulsar, could power be harnessed from astro objects? Would a fmr TV dish work to concentrate the local RF signals into higher power.
Any thoughts on the possibility of making a AlphaVoltaic cell converting natural alpha emmissions from unrefined Thorium. Using almost harmless alpha radiation to move electrons! Why thorium, because I am sitting on a 40-100m thick thorium deposite that runs furthure than 50 km north-south and 50 km east-west burried a meter or so under ground!
(Yes efforts are required to shield homes from radon, by installing membrains, using underground and in basement vents, so it can escape!)
How about a full schematic?
7:30
Do you have to have a radio station to light up an LED or is there enough natural RF to light up an LED without a radio station? Thank you
Based on our current tech & understanding
we don't have enough RF naturally to light the diodes,
there generally has to be some source of a radio signal.
I think Nikola Tesla pointed out that energy is everywhere
and can be harnessed
but we have not yet (publically) figured that out.
What is the voltage of the Caps?
Radio is photonic. Has anyone looked into a radio photo cell?
Have you tried multiple array ?
Can you use transistors to increase the current?
Wouldn't that defeat the purpose of not having external power? I could be wrong
@@QuinnHartmann How much current do you need to get a transistor to work?
@@Berghiker it depends but amplification circuits take a weak signal and input power to generate an amplified signal
@@QuinnHartmann Can you not just try it and see if it works rather just discuss theories if it could work or not?
@@Berghiker I mean go for it, just keep the first law of thermodynamics in mind
This is the Joe Tate ambient energy harvesting circuit. He did patent it a decade ago or so I believe.
wow!!!!!!
Powering IoT devices…..hmmmm
loved it bro. a sub from me
Great, thank you for sharing DV7BKG 73s
You ramble too. Much old man
Well thank you so much for the indepth reply