The Planck

 

 

The Planck is a 7 stringed instrument played horizontally by tapping

fingers between the frets. The velocity of the finger striking the string causes it to vibrate.

The vibrations are translated into an electrical signal via an electromagnetic pickup of unusual construction. The frets are 5/16 inch high off the fretboard. This allows for bending the string by merely applying more pressure downward. Thus, individual strings may be bent when playing a chord producing somewhat similar a sound to a pedal steel guitar. This design also produces sounds similar to a Japanese koto or even a sitar.

Demo 1

Demo 2

Demo 3

The pickup has 400 (appr.) winds of 30 gauge wire wrapped around 7 ferrite pole pieces. At the bottom of each pole piece is a rare-earth magnet. The strength of the magnets seems to allow for fewer winds around the pole pieces while providing for excellent tone. I'm not an electrical engineer but it seems to work and I'll keep doing it until the men in black suits tell me to stop.

 

The Planck is a standard 25 and 1/2 inches scale length. The actual length of the instrument is 36inches . It is made from two layers of poplar wood. One layer being thick on the bottom which is where the headstock is carved. The top layer is where the frets, nut, bridge, and tailpiece are placed.

 

The original concept of the Planck was designed and built in June of 2002. It was 6 long. Meep!

Each form has gradually gotten smaller until its current length of half that size.

 

 

Planck Instructions

Pickup Instructions

 

email me : craigseven at yahoo dot com

All pictures, sounds, and text copyright 2007