I can't find the J201 N-channel JFET locally, can I build the circuit with 2n3904 NPN BJT and get the same results?
No, it has to be an FET, that's the whole point.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
I can't find the J201 N-channel JFET locally, can I build the circuit with 2n3904 NPN BJT and get the same results?
If you check EPE they did a PIC based guitar tuner a couple of years back, and they used a variable filter driven by the PIC.
I'm presuming this is for a college assignment?, as you can buy far better commercial ones for very little money.
Nigel it has been longer than 4 months that I am working on this project, if it was for college I would be screwed by now...
It's a guitar embedded tuner with multiple tuning schemes, according to scheme chosen the PIC will control 6 servos on the headstock of the guitar to tune it to the scheme user input.. if i get it done, it will just be awesome!
I have checked the EPE one when I first started the project, i just couldn't make much out of it, I just skimmed through the code (seemed too complicated), didn't see the schematic thus didn't know they had an controlled external filter.. I thought what they did was software filtering.
I have modified sub-micro servos for full rotation before, it will work.Have you built the mechanical hardware yet?, obviously you couldn't use radio control servos for it, as they don't rotate far enough.
Yes. I play a wide variety of modern rock, metal and electronic genres.Do you really use different tuning schemes so much?
You must be proud. When I have a kid, I'm going to make sure he/she is raised as a dedicated and far-better-than-me musician. I started playing when I was 15 (a little late imo); I'm a decent guitar player, and a pretty good electronic music composer. When it comes to perfect pitch for tuning though, I don't have the trained or innate ears for that., the usual method is to have two guitars! - my daughter plays bass , and has written various songs that require different tunings, as well as playing covers that do - but she usually just retunes on the last note of the previous song. She has pretty good pitch, and can retune a string as the previous note dies away - pretty impressive to watch. In one of her previous bands the guitarist used to pass her the guitar to tune - it was faster Melissa doing it by ear than using a tuner, even including the time passing the guitar over.
I think that project is a little ahead of my skills, especially since it has been a long time since i coded any assembly. Maybe, I will look into it when I decide to improve my system.No, it's external controlled by the PIC - I would suggest you try something similar, and it may be worth buying the back issue(s).