Drone valve
Drone valve
This new usefulness was designed and patented by Afonso Castro
The main function is to avoid that the drones reed begin to be heard before the chanter and that they don’t be heard after stopping.
Besides, the sound of the drones is more stable, and where more is perceived is in the raise of the octave, because it diminishes a lot the variations of these.
Simple placing is very easy to regulate, with a simple twist with the key, achieve to regulate it so that it begins and finalizes to the pair of the chanter.
It serves for all types of drones, of cane or synthetic and can be used so much for the bass drone, tenor drone and high drone.
Sight of the valve in several positions
The valve enters and is regulated in the interior of the drone stock, with the key of the drone that also supplies us. The key has on the one hand thread, with which threaded the screw of the valve, and like this, you can enter it or withdraw it from the drone stock. On the other hand, it has a hexagonal head, with which regulate in the valvular to that Preston begins to sound the drone.
Key of the drone valve
