Horray!! Finished my DIY electro-acoustic-feedback-string-drone instrument Ancellique today. Most of the work was done at the Sommercamp Workstation in the Haus der Kulturen der Welt in a workshop supervised by Halldor Ulfarsson.
The strings are recorded through four self-wound coils. The signals of the strings can be separately controlled by four potentiometers attached to the side of the body. The speaker at the back of the instrument is connected through a 40W power amplifier - also inside the body - with the mixer of the coil/string signals.
So basically all the sound that is recorded on top of the body is played back immediately through the speaker at the back of the body, creating a nice electro-acoustic feedback. Mostly you don't even need to "play" the instrument, it's enough to just turn up and down the pots of the string volumes.
The body is from an old broken guitar, the tailpiece from an old electric violin, the bridge selfmade, nut selfmade, tuners are piano tuners, the fretboard is made out of on of those sanitary tubes and all the way through the instrument there's this curtain pole running for stability.
Some drones played with Ancellique