Free Energy/ Cellphone Detector (From Cellphone Antenna)

This simple circuit is able to detect signal from your cellphone antenna and converts it to electricity to power an LED ( the best thing about this is that its completely passive and doesn't require batteries ) this circuit requires: RF diode ( search ebay for: RF diode or microwave diode) LED Peace of wire Solder I have Noticed that it only detects phones working on (EDGE), ocasionally works on 3G I have a low knowledge about RF but I think it has to de with the shape and/or length of antennas. So if you can contribute to make it work better please do so. ( this is based on a video i saw a long time ago on you tube ) the video had no instructions. here is the link http://www.youtube.com/watch?v=CNJVhzOjWgU&playnext=1&list=PL8ACFDE47FA548451 (RF energy, LED, tesla, passive, electricity)

Step 1: LED+RF Diode

First Solder the led parallel to the Rf diode

Step 2: RF Diode+ LED+ Wires

Solder One peace of wire to each end of the RF diode which will work as antenna

Step 3: Make a Call and Put the Circuit Next to Phone

The LED should Light up if the circuit is close enough to the phone while making a call.
I noticed that this works only if you are on EDGE .
If you are on 3G it only works occasionaly and the LED is very DIM

Comments

[ivanavi]

hi, what kind of wire did you use for an antenna? please be specific as much ad possible

[smpowell551]

For an explanation of the circuit and how to adapt it for various frequencies, see:
"2 Dollar RF Radiation Detector You Can Build"

[ivanavi]

can you share a link on where you can get a legit iss86 diode?

[vinay sidawadkar]

Hey..nice work..wil u please post the link where from u purchased the diode u used in this project

[slimjed]

Hey thank you . It’s been a few years since I made this. Back then, I found few diodes on eBay at a good price. They seem to be way over priced now. The first link is fairly reasonable but Here are some links.
I would search for Sylvania 1n25, that one worked for me.
Hope it helps

https://m.ebay.com/itm/JBQV-1N25-Diode-Kemtron/202032465627?hash=item2f0a12c6db:g:lvQAAOSwkRpZncLV

https://m.ebay.com/itm/JBQV-1N21C-KEMTRON-MICROWAVE-DIODE-NOS/173197416320?hash=item28535ed780:g:gYQAAOSwRvdZa7eb

https://m.ebay.com/itm/Vintage-Sylvania-1N25-Point-Contact-Microwave-Diode-/191954007526?_mwBanner=1



https://m.ebay.com/itm/D6724-92-Diode-Alpha-/192286605102?_mwBanner=1

[mx28]

can I find this diode or one that will work in a microwave? like one in a kitchen? I read somewhere else that some schottky diodes in parellel (or could be in series) will do the same thing. if I remember correctly the diodes part number was 1ss86? not sure. I just want something that simply lights up when I get a call/text.

[slimjed]

Hi. Sorry for the late response but I just came across your comment . I I have not come across diodes that are rated for that frequency range.
Your microwave oven operates at 2.45 GHz which is in the range of wifi ( 2.4 GHz to 2.48GHz). I guess if you can find one that is rated for that range, it might work next to your microwave oven.

[neuralfirings]

Hi! I found a back of RF Switching Diode (35V/100ma)--is that the type of RF Diode used in this project?

Here's the link: http://www.ebay.com/itm/25pk-BA244S-RF-Switching-Diode-/370518953352?pt=LH_DefaultDomain_0&hash=item5644a68d88#ht_730wt_1141

[awsomehighvoltage]

will this work if placed be a wifi router or other RF source?

[slimjed]

It only works with frequencies on the orders of hundreds of mega hertz ( less than one gig) .wifi runs on 2.4 gigs so it won't work.

[zack247]

does it have to be an RF diode? if so, what devices might have one in them?

[slimjed]

Hi,
Some people say that it would also work with germanium diodes. I have tried germanium diodes but it didn't work for me . I bought these rf diodes off of eBay ( 4 diodes for $12 ) I honestly don't know where they can be found.

[-max-]

interesting connect one end of the diode/diode to ground and replace the RF diode with a germanium diode. it may work better and replace the led with a joule thief. it might be brighter

[slimjed]

Thanks for your input max
I will try your I dea and upload my results

[-max-]

The germanium diodes are very hard to com across but you can find them in very old am radios and all over ebay (1n34a is a very popular one) also try schottky diods they have very low drop voltages (more than germanium diodes) but have a higher leakage curent.

[slimjed]

I just found out they sell germanium diodes at my school! I picked up few today and they were pretty cheap. There are few circuits I wanna build .:)
So the mod you suggested should be grounded to real earth ?

[-max-]

What school do you go to!? That's epic. What is the part number?

[slimjed]

i go to George Mason University ( in virginia)
the diode is 1n34. they are clear diodes.

[-max-]

Well there are better ones out there but 1n34A is a VERY popular one.you can just go to your local electronics store to get those rare diodes. How mush was each?

[slimjed]

they were 10 cents each. so they won't do a good job?
i have looked for the 1n34A for years at radioshack but no chance,