Hydrodynamic Plane Wave Generator

This is my version of a Hydrodynamic Plane-Wave Generator as designed by:

D. M. Harris, J. Quintela, V. Prost, P.-T. Brun, & J. W. M. Bush
Department of Mathematics, Massachusetts Institute of Technology, Cambridge, USA
E-mail: [email protected]

Here is a link to their design:
https://math.mit.edu/~bush/wordpress/wp-content/uploads/2016/09/JOVI-S-20161.pdf

I basically followed their design with the following changes:

I used an old Dell laptop charger that I had laying around. It outputs 19.5 volts at 4.62 amps.

I used a modular frequency generator (purchase from Amazon in kit form KKmoon XR2206) in lieu of using a cell phone with the frequency generator application. I will be using this in public demonstrations and felt this would be easier.

The frequency generator requires a voltage input from 9-12 volts. I added a voltage buck module (Amazon - any model will do - I got one with a voltage display - button changes display from input voltage to out