The Physic!!

I'd never read so much about Fernandes Sustainer before and didn't really know how it works.. until I suddenly thought about it on my way back home from school. So, I did some immediate research. 

The driver A in the sustainer will release pulses of magnetic field. As the word 'pulses' suggest, it is not a continuous emission of magnetic field by the driver. Every time a pulse is release, there will be a force due to the magnetic field acting on the string. Then, the driver would stop emitting a field for a while before it emits again. When this repeats, it will cause a vibration of the strings and this would cause the string to 'sustain'. 
So what is so special about this sustainer when there are compressor sustainer pedals around? According to the manufacturer, their sustainer gives a natural sustain which pedals can't give. I agree with it to a certain extent. 


There are 3 modes in the Fernandes Sustainer

01Harmonic Mode: 
Within seconds, the pitch of the ringing note(s) will rise to the 5th natural harmonic.

02Natural Mode: 
The note(s) will continue to ring its natural fundamental tone as long as the string(s) are free to vibrate and the Sustainer System is on.

03Mix Mode: 
Available on select models including our FSK-401 Sustainer Kit, the Mix mode blends the Natural and Harmonic Mode to harmonize indefinitely every ringing note creating a harmonized feedback effect.

UPDATE: Sustainer (FK101) is available at Sound Alchemy for S$280. FK101 is a humbucker-sized sustainer.