Uggg, was going to post a link, but it's in the Members Only area of diystompboxes.com.
So, dude has taken these things which look like resistors, but are apparently chokes, stuck some magnets under them, and got it to make sound. I just ran across it here at work, so cant check the sound samples. Though y'all might find it interesting.
Edit: Well, looks like neither the pic nor the li ks actually work! Cant figure that out. I even quoted the message from over there and copied the whole img tag over here and it wont show up. Maybe click here?
Last Edit: Sept 17, 2012 18:56:41 GMT -5 by ashcatlt
Those sound sample links worked when I posted them, but seem to have failed since. Is FileDropper one of those temporary hosting things? I cannot figure out why the pic won't display. It seems to work fine in the OP over at the other forum.
asmith, you're a member over there so you could check out that post. I encourage the rest of you to join. diystompboxes is pretty cool! A lot of knowledgeable folks, and mostly pretty decent and friendly and helpful.
4real is a member over there, under his alter-ego "psw", and posted in the thread I pulled this from:
If you break open axial or most inductors of this type if not all, you will find a very thin coil around a ferrite 'dumbell' like core and ends, at these ends there is some 'splaying of the field' and of course, the more active end of the coil. You can get more upright versions (not the axial versions) that will point at the string, but this kind of core shape 'splays' the field away from the string and in hex like applications, towards the nearby string sensors.
Such devices are not complex in their principle and could be replicated, their effectiveness will likely be an improvement than this kind of approach where the cores are magnetised along their length (you might find a signifcant improvement if you move the magnet to the end of the inductor cores so the magnetisim runs through the core from end to end, and arrange the strings to align with the ends, though it is not an idea way to get a signal out of them...as you have them now, the magnetisim is applied to the centre of the inductor which seems a little counter intuitive by principle) and in the end can be made very compact and cheaper and easier than hacking with such components.
It was though through experiementing with such components that the original 'thin coil' and compact sustainers were developed as one thing that such ideas did contribute was that making things small and compact could significantly decrease the spread of EMI as well as provide for a host of applications beyond those that were previously envsioned by the larger commercial devices on offer and not to require dual EMI cancelling coils and complications from bulkier driver designs. The 'quirks' of the approach of these devices, as I assume you have found and continue to (significant loss of volume here, even with vibrato it seems) of the strings falling out of line with the pup does not lend itself well, nor is it the most compact or easiers solution to such things, The six sensors turn out to be a disadvantage and since they are all wired as one in series, offer nothing more than a single coil in the end regardless other than not reqiring one to wind a device designed for the purpose at hand.
Last Edit: Sept 17, 2012 18:54:09 GMT -5 by ashcatlt