This voltage is already intended to be used as the voltage for ink droplet charging and so I used it for this.

In the video, you can see that by turning on the second switch - the first one from the left is for high voltage and the second one is for the charge voltage - the ink stream gets deflected towards the high voltage plate and by turning off the switch the ink stream returns to its straight alignment.

For this test I set the high voltage to 4.4kV so that the ink stream got more deflected, for not hitting the gutter in its deflected alignment.

This test proves that with the current setup ink stream charging and deflection works.

I think I will contiunue working on the phase detector and on the generation of testing signals next. For ultimately deflecting single droplets out of the ink stream.

Thank you for your interest in my project :)