Assembling the iDevice Guitar Interface, part 3
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- Опубликовано: 25 авг 2024
- Please support me by listening to my music: spoti.fi/43TAbqx or ffm.bio/waveaway
Visit my blog: www.planetz.com....
Have you ever wanted to plug your guitar into your iPad, iPhone or iPod Touch? In this video series, I'll show you everything you need to know to build your own impedance matching, buffered guitar interface for $5 or $10, using just a handful of parts and electronics.
In part 1, I introduce the project, and demonstrate what it sounds like if you ignore the impedance mismatch and buffering requirements.
In part 2, I give an overview of JFET's, and work up a simple preamp circuit diagram, then prototype it on breadboard and demonstrate how it sounds.
In part 3, I show you how to put it all together and assemble the preamp directly inside the jack.
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Interesting, I am a musician and also have electrical engineering knowledge, hah the birds of a feather. Very instructive, detailed and appropriate for all levels of viewers, as long as their interested in what you've accomplished, I know electrical engineers that do not obtain the detailed knowledge our instructor here has..A+
This is the EXACTLY how you make a RUclips tutorial.
NICE WORK!
After messing around with this thing for a couple hours I've found a few different amp/pedal combos that sound really nice in both Amplitube and Garage Band. Thanks so much for sharing your knowledge!!
I had to put mine inside an old pill bottle, my soldering skills just aren't up to cramming all that stuff into such a tiny space, and the pill bottle holds the headphone jack too.
This tutorial is legendary. thanks.
second planetz project for me. made mine in a project box. my pickup wiring and my interface are based on these vids. rock solid instruction. thanks again john.
thank for this tutorials i built my own irig amp. sound is great. but in garageband its crazy sound. but in amplitube its great.. i decide to built irig because here in qatar i cannot find in any shop..
more power to you. guys... :) im happy now
Hey John. I would just like to let you know your videos are very interesting and informative. Keep it up!
Very nice work !
A gold star for you my friend. I built mine this afternoon and it's awesome. My 1/4 inch jack isn't as nice as yours I could only find a plastic one but it dose the job. Cost me $20 things are a bit more expensive in Australia but its better than paying $50.
Very NEAT setup and Awesome delivery on the instructions on how to fabricate this Adapter. Thanks for sharing !
Really well made instructional video, John. Very easy to understand. Well done.
Nice work, reminds me of making ham radio interface cables for packet and cramming all the components into a DB9 plug shell case dead bug style.
Got it working and then broke one of the legs off the transistor when screwing the jack back together. Oh well, back to Radio Shack in the morning. I wouldn't say that it's a replacement for an actual amplifier, but definitely beats carrying a practice amp around while traveling. Thanks!!
@johnplanetz thanks for the help and the quick replies. I'll try to post a vid response when i get it going.
@johnplanetz 47k was the solution, now i have mi iDevise full working!!! Thanks a lot John!!
OK thank you very much for your answer, and forgiveness by putting it in three different ways, proves the options that tells me and I tell you you.
Tnx sir. I already find a jfet but its 2n5458 and it works perfectly. Here in the Philippines, its hard to find a mpf102 and some sellers says, that mpf102 is impossible to fiind here. And they gave me 2n mosfets. Tnx for this tutorial sir. I gonna show you how it works when i finished it. Thank you.
Thanks for that tip about the tillmans preamp cable. Okay so if I wanted to do this it would work. Guitar and mics to mixer, to preamp cable or a derivation of such from the master mono out, to the iPad mic, to an amp through the out of the iPad ?
Fantastic tutorial. I'm curious to know if it is also possible to make a midi interface for i devices.
Oh btw i forgot the name and the number code of the transistor. I bought a fet look a like in a electronic shop here. But its different the pins are, emitter,collector and base lol btw thanks for this video i learn alot. Im gonna make my ipad a fx sender to my mixer.
I learnt something new today, thank you
Hi John,
this project is great. Im not so good at electronics so i was wondering if you could make better schematic explaining how to hook up all three of the jacks. On your schematic all I see is one input jack I think, where are the otherones?
Thanks.
John you are very knowledgeable on circuitry but you need help with your guitar playing technics.. I am just teasing man. The video is really awesome, you are very calm when you teach .this is great
..Hello John,, I am really impressed with this video of yours and I can really say you got some skills in electronics,, John, if you don't mind, I would like to request a tutorial video on how to make a home-made ampkit link idevice,, because i think it's way better than the irig due to its feedback issues.. actually i was planning to make my own ampkit link but,, i am not familiar with its circuitry.. please grant my request..
Thank you so much, friend! Videos is very usefull.
Best Regards from Russia.
I love the intro/outro music. ;) this is really cool. I wish i had an i-thingy to make one of these! Thanks for the time took to show us all this fun stuff! Have you built any sort of amplifier yet?
okay i ask it this way. the headphone jack on the iDevice specifies that the second ring must be ground or negative or the wire that is common in all three wire colors right? so no matter what color you choose for the mic or left, right audio signal(we can choose anyone) the ground must be the second ring because you can not use it freely.i've seen your first video. thanks for your replies
Man I hope radioshack is open on Sunday. I'm gonna try do make one of these, but I think I'm gonna have to get some helping hands. Did you say this same thing would work on a macbook pro with only one audio input/output port?
Hey John, great work on sharing the knowledge! Any chance of making the Apogee Jam version?
Keep up the inspiring work!
I made the same thing following your instructions and all i get out of it is bunch of high pitch noise. Can you please help me?
Thanks!
Ok, then any idea what's causing the hizz noise and signal cut out, it happens when i strike a string a little hard.
Would I need to change perhaps some resistance or the transistor? not, I hope your answer. Thank you
Thanks for the fast response. Sorry, I am still in the learning process, does this mean if I use the 12v zeners, that I still add 2 of them, just like you did? I will be testing everything out tomorrow anyway. Just getting some final advice.
what is the purpose of the diodes? in that configration dont they cancel out as if they arn't even there??
one question.
in the audio cable the second ring must always be ground right?
otherwise it wont work? i mean the cable we buy must be with this specification?
my trrs cable has the ground on the sleeve not the second ring thats going to be a problem isnt it.
Sorry late reply. It works fine now :) I think the only problem was the transistor...we bought a new one and it works well..
Thank You!!! :DDD
By the way, when I use garageband and adjust the input level to maximum, it starts to have the 'zzzz' and the sound quality is very bad....(I use it for recording)
Is it normal to sound like that??
Hi John,
I'll try to do this and put it in a box. So in this case I can use my default cable.
Also I'm considering using 2 P2 Jack (3,5mm). One I use to plug any cable to send the signal to my iDevice and the other to my headphones.
But my question is: Can I use a USB port to output the audio signal and then plug a cable to transfer the signal to my computer, or in this case your project need some changes.
Sorry if this is a really dumb question, because I really know nothing about eletronics.
Great video tutorial. You are very instructive..
Tks in advance.
i john, I did it and it is going well, only that in the clean presets saturated enough while it goes great with distortion, that can be changed to reduce the power output? I have a Gibson SG standard. Thank you
can i put a rca left and right input instead of a female or male quarter inch in? im putting a mixer not a direct guitar
PS: sorry for my english
i managed to change the wirings of the cable so the second ring became the ground. i mentioned the volume nob of mine does not work fine. it hisses when i turn it. is it because i used the BF245C ? thanks anyway now i can only take my guitar and ipad and practice anywhere
what would you do if you wanted to connect the output of a mixer to this for recording microphone, guitar, etc... Would this design handle an amplified signal well?
hi John, your video helps me a lot! finally i found a real interface for my ipad...i just build it and it works but the sound is distorted even in a clean amp in garage band, what could be wrong? i used a 1M resistor then i added another 1M but the sound still distorted as before, help me please!
PD: i used a 2N5457 JFet could that be?
Hey, great video! Any chane this would work with a Macbook Air? I think it has the same socket as the iphone?
Best DIY iRig!
Could you tell characteristics of the zeon diode you used?
Thanks!
Hi john
In the second video you put the diodes back to back and here you put them head to head,
which one is correct?
and I'm using BF245 any ohm suggestion?
Tnx
I have problem with this. My JamUp uses internal 4th gen ipad mic instead of cable. I used J201 transistor SMD version and thats the only difference.
Thank you very much
hey, i can't find any JFET MPF102..so i bought 2N5458
my brother was the one who's working with this. he used all the resistors and diodes drawn on your schematic...he tried it on a breadboard (sorry i'm not sure of the spelling), it worked well in both garageband and amplitube, no "zzz" sound, the sound is clear etc.. but when he soldered it on pcb, it didn't sound that great...it doesn't have the zzz sound but the sound is not clear...are there any problems with the resistors used? pls reply
Can I put a audio mixer into the guitar input instead of guitar?
@johnplanetz it was just one I had at the house i found I'm not sure where i found it. I did find most of the parts I needed I decided to use a male 1/4" plug because I couldn't find a female with room for the components. I did manage to get it together last night and it was a little noisy i think im going to pick up another trrs cable on ebay and see if it works right. Also I couldn't find a 1.2k Ohm resistor so I used a 1K would there be a better one to use?
hi john... i would like to ask about what kind of resistor would be good for a JFet 2n5458? been searching for a MPF102 but cant find it anywhere....
Hi, Busy making my own device now! Great tutorial thank you! The only Zener Diodes I can find is 5w 12v - and above. Can I use one of these instead of 2 x 5 or 6v?
Already tried to reduce the gain in applications that I use on the Iphone, are Amplitube and Jamup pro, but it is still saturating too clean sounds only with a Fender amp for example.
Hi John. Thanks for the amazing video.
I followed your instructions closely, except a) I used a 1k resistor instead of 1k2 and b) ommited the 10k resistor.
My cable seems to work in Amplitube but I get a high pitch feedback if I crank up the amp's distortion or volume. Turning my guitar's or my loudspeakers' volume up or down won't affect the amount of feedback.
I tried Amplitube's feedback suppressor but it makes my guitar sound fuzzy.
Any hints on what may have gone wrong?
Thanks
Hey, John. Great video!
I made my own version of the iRig for use with MacBook Pro (with only one audio port), now I want to adapt it to also be used in iPhone and iPad. I need to add these components.
Can you help me with a question?
You use Gate, Source and Drain to designate each wire of the transistor. But, the language generally used is Emitter, Base and Collector.
Can you tell me who is who? Gate is equal to Collector; Source equals Base; Drain equals Emitter?
Hope you can help me. Of course, not wanting to take your time.
Thank you!
Great project. I would like to have an ipad to try this. Unfortunately, there isn't any amp modeling app for Android devices like my Galaxy Tab but I hope someday they will come with something.
Just a question. Can I build a similar device for a mic computer jack (taking in consideration that the jack is only tip/ring/sleeve and not tip/ring/ring/sleeve as you us here)?
Will this wouk with jampup app for the iphone/pad/touch???
i jhon , i di it with j201 , but its don't work could you help me please
great vidz, can u advice how to make 2 input? 1 for guitar and 1 for backing track with individual volume control
This project just uses the microphone input of the iPad. It doesn’t have two inputs- so you’d need a an interface that externally mixes the two signals and sends them into the iPad. Take a look at the Focusrite Scarlett Solo, etc
unfortunately mine gave up the ghost after a day...think something shorted...too much crammed into a small space. Will try again on a board this time.
This is way over my head to do myself, do you sell them?
Thanks Alot!
Weller brouht me here!!!
Like one commenter said here, I don't see how the diodes contribute in this circuit, their pointless, I built this circuit being curios, when you strike a string hard it cuts the signal until less current is coming out of the pickup, also there is hizz noise, i'm not an expert but how the AC signal from the pickup is being sent to a jfet which needs DC in order to work its function?
Hi John,
Thanks so much for making this, it is so helpful. Can you please tell me, if I want to plug it into an amp or another pedal will the headphone jack be the correct impedance or would it need a second circuit to adjust the output?
Thanks again
T
Great work. Please, I need to know if this would work on a notebook, I have only one 3.5 mm jack, that works for both mic and headphones, do you think this could work as a line in for my guitar? Thanks.
Hi, i finally created the interface. First thanks for your great tutorials.
i wanted you to know that i've made the interface with 245C transistor.
it sounded near perfect. any opinion about this transistor?
I@johnplanetz so I went to radioshack and they had less than half of the components I needed. Can you recommend any other store or website that might have what I need.
Just followed your build and have created my own Irig. Works well, just one thing I noticed don't know if its normal, but when I'm connected to garage band guitar amp I cannot pan left or right, but after I have recorded and I switch to the track section I can then pan my recordings. Is this normal or have I made a mistake somewhere in my wiring? Thanks for all the info btw.
What type of jack socket are you using & where did you get it? The nearest I can find is Neutrik NJ3FC6.
+Jak Ajak - I listed all the parts for the project at my blog: www.planetz.com/building-an-idevice-guitar-interface-cable/
I have an old Logitech audio interface that was originally used to connect a gaming headset to the computer via USB. I need to do something similar to what you have done, and I realize this video is nearing 6 years of age but was curious. Could a capacitor and single resistor do something similar? The capacitor to block the dc voltage and the resistor to correct the impedance? Was just curious, thanks in advance.
is it okay if i put a transistor 2N5046 ?
Thank bro..
oh ok, thanks for the reply :)
by the way, when i checked amplitube to see if the effects work, it doesn't.. the output sound is just the same with no effects in it....does amplitube work with yours?
Is There a similer way to make your own IRIG HD cable? Excellent Tut Btw.
The iRig HD is digital interface preamp with its own A/D, and connects over the 30-pin/lightning connector. That would be a much bigger undertaking - not realy feasible for DIY- unless you have serious expertise in that kind of electronics.
could i use this idea for my line in on my pc?
YO NESECITO MUCHO, MUCHO DE ESO, TRADUCE ,, GRACIAS...
Hi Erika. If you click CC under the video (playing with a PC computer) you can have subtitles AND an automatic translation to several languages.
Si hace clic en CC bajo el vídeo (utilizando un equipo con un PC) que puede tener subtítulos y una traducción automática a varios idiomas.
Olá, Erika. Se você clicar em CC abaixo do vídeo (assistindo em um PC) você pode ativar legendas E uma tradução automática para diversos idiomas.
oh....ok, thanks :) rock and roll :D
Hi, nice tutorial, thanks. Just one question: the original iRig is subjected to some crosstalk problems, have you encountered any in this one?
+Claudio Conci - I'm not having issues but I'd guess that the performance of this interface is very similar to the original iRig.
Hi John! Thanks for your videos.
If I'll use russian jfet's KP303E or KP305D, what resistance of R2 should be? or how I can determine it...
I don't know why, but amplitube use my builtin mic, instead cable..
all connections are ok, ipod 4, ios 5.0.1
Btw its so hard to find a jfet mpf102 just like urs
Hey John, nice video! Any plans for constructing a higher quality iPad dock interface like the Apogee Jam? $99.00 sure seems a bit high for it! :)
$30 for an analog preamp cable seems expensive to me, and easy to DIY as I showed in this series. $99 for a digital interface preamp with its own A/D seems like a reasonable value, and would be much more difficult to make DIY.
Is there way yo download the diagram?
You can download the diagram at my blog: www.planetz.com/simple-jfet-preamp-for-an-idevice-guitar-interface/
Superb video’s!
Just a question. I made this on a breadboard and worked just fine.
After soldering it still works like a charm. But when i change the volume or change pickups i van hear thuis clearly within amplitube.
Any suhhestions ?
I changed the jfet for a new one.
Thanks in advanced for awnsering me
Kind regards
Jelle
jellevl - if you did not experience the issue when using your circuit on breadboard, then you must have a mistake in soldering
+John Cooper I don't hear anything. I tend to be super dyslectic with schematics. ohhhhh freakin snap. as I was typing this the video played the part of the zeners facing away. I put them close every time! Errrgghh! I just cleaned up my electronics stuff. Alright! 12am building time again!! dang I sound like a nerd.
Can I use a J201 jFet instead of the MPF102? Would I need to change the resistor values? If so, what to?
sebeditor - you'll need to experiment with the source resistor value. you could start with a trim pot to find a good value
Dear john, is it possible to connect this cable to a pc line in port?
to make the port Hi-z? and reduce the delay?
This circuit requires a voltage to drive the FET. A line-in doesn't provide this voltage.
Actually I tried and it did not work.Can you work on a project like this?
Abteen Z You would need to provide an independent source of power for the FET. Search for Tillman's powered FET preamp cable- he builds a battery box to power the preamp.
Thanks MAN
You should patent this cable and sell them.
I'm gonna make mine in a box,too much stress trying to jam all that stuff in that plug
will this work with samsung devices ?
@johnplanetz sounds like another video topic... maybe?
is this work with android 4.2 sir?
thanks!
can I also make one for Android?
sir. would this work with an android phone? thanks
+tamolmol grange - I guess so, but I haven't tried.
+tamolmol gurang it works in samsung smartphones as well as smartphones running android 5.0 Lolipop or newer (i read this information in the irig page a time ago)
+Ismael Zavala thank you sir
+John Cooper thank you sir
This guys should be working for Intel, Apple and Nasa at the same time...
bad audio ... i know its tough if you are using a digicam to shoot . i was thinking , if this was my video i would strip the audio , compress it , then sync it back up . it really isnt that hard to do .. srry to be so critical , its a huge thing to me , folks make these valuable diy vids , but the audio is terrible , you cant hear it , so you turn it up , then you raise your voice and OW ! lol
POR FAVOR.. TRADUCE PARA ESPANHOL O PORTUGUES . YO ENTENDI MUY POCO, POR QUE NO HABLO INGLES,, ... GARCIAS...
+Erika Maria puedes aprender ingles, o traducir de su pagina, no todo sera facil.
Hi Erika. If you click CC under the video (playing with a PC computer) you can have subtitles AND an automatic translation to several languages.
Si hace clic en CC bajo el vídeo (utilizando un equipo con un PC) que puede tener subtítulos y una traducción automática a varios idiomas.
Olá, Erika. Se você clicar em CC abaixo do vídeo (assistindo em um PC) você pode ativar legendas E uma tradução automática para diversos idiomas.
There is absolutely no reason to mispronounce the word SO L DER! there is an L in the word SOLDER!! that's right the letter L is in there ... the letter L.
why would anyone waste their time and $$$ on an inferior design? buy the iRig PRO and be done with it.... the feedback issues with this design are in tolerable to say the least.
+lakisbouz - www.planetz.com/why-saw-der-instead-of-sole-der/
+lakisbouz I think all geeky people love to make it themselves which is half the fun.
+lakisbouz I think its because for some people, me included, its very funny and interisting to make this kind of "proyects" in our free time, is a hobbie