Room setup
Stagger strings - old setup
(note pulley on left, vibrator on right)
Vibrator attached to bench with clamp
Connect power cord to variac;
set variac to 100 or so
Vibrator attachment, rear view
Attach pulley clamp to bench
Pulley and small clamp detail
Align the pulley with the vibrator
Strobe light – place on instructors table
Vibrating string showing node and antinode
A nice view of a node
Another node view