Does My 3D Printed Radio Work 5 Years Later? 

for the transistors he's gonna make his own doped silicon crystals

*Ben eater

@@jorgesaxon3781 Nah, Ben Eater would make it on a breadboard and use a 6502. Whereas jdh would make it out of garbage and chewing gum with wires sticking everywhere.

jdh moment

Tf is jdh?

I think you need a piezo earpiece in your radio, so that it's very sensitive to voltage

​@@tomclanys That's correct. These earpieces were most commonly used in hearing aid devices and had a 3.5mm jack.

Very true. They would diy build their own with spare parts.

I could design a portable enclosed version :)

@@3DSage for a lesser confusing wiring standard use the european version measured in surface area mm2

​@@3DSagethis is a great project but is so strange 😊

@@555-xd1fo It's ok to be strange sometimes :)

@@3DSage is it possible to make a FM radio similar to this?

This is definitely one of the negatives of government regulation. They act unilaterally and you have no choice. I'm not sure if there's a solution to that because with no regulation we'd have signals overlapping everywhere, and now we have all these restrictions which make things harder for the little guy and punish them if they step out of bounds.

It is a nice box! Reminds me of a Zelda treasure box. :)

Keystone Science!! Long time no see! I hope you are doing well. I'm glad you saw my updated video and thanks for the comment.

I noticed that when editing the video but replacing with a normal wire would cause the same effect. Removing the diode also is to prove the sounds are coming from the printed radio.

actually it's quite hot

It brought back old memories for me too! I found it again and I just had to make a new video :)

@@3DSage i suggest you could turn an old school rheostat into a foxhole radio... I think it would work far better ....

wow that's phenomenal! You have so much great experience and got to see computers really evolve over the years. You are awesome! 👍

@@3DSage thanks, I spent 47 years as an engineer, from early color tv to chips, retired 11 years ago. You might want to show another 10 year old how to do the radio without 3 d printing. A paper towel roll makes a good form for the coil, a small piece of scrap wood to hold everything......

That means a lot so thank you for the nice comment!

Sorry to hear that. I didn't know about that. I have been thinking of make a 3D printed FM radio. It's a little more complicated but I can clearly show each step.

@reapiu8316 They where completely shutdown and then torn appart, the last AM Radio Station was shut down 2016 and since then there is no AM Radio anymore, we still have FM but it's just a question of time when they will also destroy them

@reapiu8316 This is not so easy, you can make a amatuer ham license then you can send with up to 100W or 750W with the big license but not on broadcasting bands. I don't know if it would be possible to make a private radio station for AM, it's possible for FM but there is a lot of paper stuff you need and it cost a lot of money. I build a small Shortwave Transmitter which has only very low power so it can only be received in my own appartment and not from strangers on the outside but even this is technically not legal because i don't have a license to transmit and it is on the broadcasting band

@reapiu8316 it's not really a government thing here it's just an econony thing because they want to sell new stuff therefore they shut down the old stations that you can't use the old radios anymore. If you make an private station that costs a lot of money so they get money from you and that's fine then Oficially they want to shut it down because it needs a lot of energy but the new DAB transmitting needs a lot more energy for the same distance, in fact shortwave is the most efficient, with a single station around 100kW in central of germany you could ged through whole germany and even further

Yes I mentioned that in the video and that's a great trick to use! Works great :)

@@3DSage With copper, if you heat it up you can dip it into isopropanol. It reacts with the oxides at high temp and reduces it into copper very quickly!

​@@adamrak7560same with acetone(vapors). Just turns the oxides straight back into copper! Make sure to cool it down quickly by dipping it into the pool of liquid.

Given that use, how one makes transmitting version of this. Its fine and dandy to listen but if no one is transmitting its really not useful. This could be good shit hit the fan communication method if it can handle EMP.

@@Hellsong89 Well, that's the fun part, you CAN do the same in reverse, you just need the amplifier driving current from a piezoelectric surface (the same earpiece used to receive can also be used as a microphone to transmit) towards the coil instead of away and you can get an (admittedly pretty bad) transmitter. It's the same design principle that led to the "walkie talky". Yeah a hand built one will make lots of noise instead of picking up lots of noise, and as a broadcaster it'll have poor range, but you'll still be audible so it's better than nothing in a disaster. Bigger coils concentrated to a specific frequency start looking more like the modern antenna, combined with stronger amplifiers you get better range at the cost (or maybe benefit?) of spreading your bandwidth occupation.

Seriously, though some kind of cassette player would be cool!😂

Do you mean vacuum? 🙂

I could make a part 3 video and build a portable design. :)

​@@3DSage you should make a small 3d printed pcb with an option to use a battery with it :)

@@ithaca2076 if I had the time I would make the slider an old dial with a knob to turn it :)

great ideas. That would also work.

Thank you!

Thank you! :)

@@3DSage u r welcome brother and please can u make a detailed video on FM receiver

you mean ohm? 50ohm internal resistance diode? That would extremely strange for a silicon diode. Have you used homemade oxide diode? Or germanium diode? (Schottky diode is the best for this, if you have one, it only needs about 0.2V to work, but can do with slightly less)

@@adamrak7560 dear in those days i have lot of stock of different old & new components from my father. I tested many many diode and different stuff but only one type diode work very excellent ( it look like in4148 but its colour is green and its internal resistance exact 50 oham). Headphone from airline its impedance 300 ohm . No capacitor, no earth, no antenna used. My concluded after many experiment, different wires joint together and wounded on 3 inch wood pice 1 ich diameter. It tunes automatically natural frequency that catches different frequency and convert into power and signal.

search Amazon for 5x9mm springs. The Exact product I bought is: "BronaGrand 150pcs Antiqued Brass Silver Crimp Fasteners Leather Cord Ends Caps Necklace Clasp Jewelry Parts 9x5mm"

@@3DSage excellent, thank you very much for this information and an amazing project!😁

Small solar panels or hand crank generators are fine too. However it will be not possible to use them without transistors or vacuum tubes, which, sadly can't be made so easily as diodes.

Using Arduino works well

@@navysealscopypasta9 Really? I might have to try that!

*RU-vid sponsor* XD

Cant

Search for Scotch roll on double sided tape. Or just roll on double sided tape. I think these roll on are kind of new. They are so helpful for many project so I hope you find it!

That would be cool!

Yes and and it's best to have a long antenna. Thank you! I like making these little projects and I have several more in mind :)

Your sink is absolutely the worst kind. Im amazed there is a signal because that faucet is likely not connected to the copper pipe work, usually plastic pipes. Downspouts with the paint removed where the hookup is, flagpole, the valve underneath sinks where it actually connects to the copper, hot water heater, my favorite might be the ground wire in a plug. Its the mouth of the plug. Tuning ur antenna to the proper length is key tho. Longer is not better. It should be half the wavelength. For am of 50khz u can try a 1/16 wave antenna at 1200ft or 374meters. And will work for 100, 150, and 200khz bands. Surely you could divide it again if need be. If ur antenna at any length is a bit out from what u want to receive, it might cancel that particular frequency if its a fee hairs off as to reflect and invert the wave within the antenna. Radio is so cool

Yes I show that at the end of the video. It works!

FM or frequency modulation is much better and newer and in more quantity than AM (which is power consuming and old )

AM is less used than FM

That is a good idea!

Id suggest making one before the apocalypses

Yes but doing that means it them needs a battery.

Great minds think alike! 😉

лампа и есть свето диод

I would wager that the thinner( to a point) the better as it allows you to have more coils.

Germanium diode. It needs to be because of the low current levels.

@@3DSage I found a workable alternative diode that you can get more easily ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-5y7I7G_a3Qo.html The 1N5711 works if you put a 2K loading resistor across the earphone.

Yes regular piezo disc work but higher inductor use parallel to piezo.

@@rizwanmalik3659 thanks for the info

Like catching the radio waves and converting them into power?

@@1x1boop28 yea

Wouldn't be a generator, but a collector. However it would be very very inefficient and ineffective

jk it probably doesnt work the same way

The alternating wave cancels itself out, in a way. So half the wave creates a magnitude that vibrates the speaker.