I'll be thinking of creating tonearm remote control to incre-decrement VTF automatically:-)
Design proposal:
An electro-magnet that displaces cylindrical container filled with liquid so that the liquid moves from forward position to back and reverse giving that kind of possibility. See model bellow that could be powered by watch battery:
up up
cylindricalcontainer
down | down
m1 p m2
if m1 EMF is larger than m2 VTF decreases and increases otherwise where m1, m2 are electro-magnets and p is pivot.
Design proposal:
An electro-magnet that displaces cylindrical container filled with liquid so that the liquid moves from forward position to back and reverse giving that kind of possibility. See model bellow that could be powered by watch battery:
up up
cylindricalcontainer
down | down
m1 p m2
if m1 EMF is larger than m2 VTF decreases and increases otherwise where m1, m2 are electro-magnets and p is pivot.