JER00N

Alright, thanks. Does this kind of driver also avoid feedback even when it's close to another pickup? Would it be possible to fit the coils next to each other instead of after each other (like the Sustainiac seems to be) so it can be mounted in the single coil mid position of my H-S-H guitar ?

Thanks col for the explanation. Can you please post the design of your latest working bi-longitudinal driver? I've been looking a bit through this thread but it's almost impossible to find it in such a huge topic

Ah thanks, that makes sense to me

I've been thinking about the mid-sustainer again and I wondered if shielding would help anything at all. Magnetic field lines go from north to south along the outside of the magnet, like I have sketched here: As you can see the lines go through the humbuckers, 'jumping' over the shielding. Because of this I'm a bit skeptical about the whole magnetic shielding thing, even if Zfritzz' shielding works. I think we should also concentrate on the speaker/piezo system because these systems won't give us the magnetic fields hassle. Has anyone got results from these kind of systems? I tried with a piezo on the tremolo block but I guess it's not powerful enough. A speaker would be more powerful but then you can't move the tremolo anymore...

Thanks for the translation. So the solution is to use just a lot of tin sheets. But I don't really understand your last sentence, should the tin layers be connected to the magnet or not? Because when they're physically connected to the magnet, the layers become magnetic too thus being not a shield anymore. Furthermore I don't really understand if the layers have to be connected to eachother or not... Maybe some photo's could help? Thanks, Jeroen

Hello Radiotrib, Yes the sustainer requires a magnet. I don't know exactly why but without one, it won't work. There is a sort of initial magnetic force needed which is provided by the magnet. In a normal pickup, the poles are magnets too. Yesterday I took some metal sheet (magnetic) out of an old VCR (some parts of it, like the power supply) are built inside a metal cage to absorb electromagnetic fields to prevent distortion of the video signal) and placed it between the sustainer and the bridge pickup, but it didn't really help. I don't know if it's really necessary to also place a shield between the neck pickup and the sustainer, even if I don't use the neck pickup?

I used Bison Kit. I think the coil has become a bit loose here and there because I can hear the sustainer makes sound (the same sound as I hear on my amp). I'll have to redo that a bit.

Does it matter which size of the magnets is towards the strings? Because I have 4 small magnets next to each other, but then the first is with the N-pole towards the strings, the second has the S-pole towards the strings, the third the N-pole etc... I can image this somehow distorts the field generated by the coil.

Hello all, a few days ago I found this topic and some other howto's about the sustainer. I was very interested in it so yesterday I built my own. It's far from optimal because I don't know if I got the right gauge of wire (I got it from an old coil, it's quiet thick but I don't know if it's really 0.2 mm) and it's resistance is about 5.9 ohm. The magnets I used are small magnets from Lego, they aren't very strong but it works (kind of...). As you can see I used M3 bolts as a core. At first I wanted to use a 'solid' core like in the example, but I couldn't find anything suitable. Now with these bolts, I can adjust the 'power' for each separate string which might be an advantage. So as I said, my sustainer could be a lot better but it works for now (at least on the E-A-D strings) But now the problem, I want to place the sustainer in my Ibanez RG270 which has a H-S-H configuration. I removed the single coil (don't use it much anyway) but when I put in the sustainer it just gives a long squeal (I can use the volume- and tone pots to change the frequency, cool ) so there's quiet some interference... When I hold the sustainer above the strings (so not IN the guitar but above it, at the same position (between the humbuckers)) it works alright. So I hope we can work out a nice solution for the mid-position sustainer. I'm interested in Zfritzz' solution with the soft drink can. I already tried wrapping the thing in aluminium (of aluminum, don't know how you guys call it ) foil, but that made totally no difference. By the way, at some tests I heard totally nothing when I turned on the sustainer, not even the normal hum out of the guitar. Then I found out that it was just creating a very high frequency that was unaudible by me The dogs in the neighbourhood shouldn't have enjoyed that