Yamaha PSS-51 Vector joystick synth. Stick it to the man!
I didn't say this in the video, but the sound of the vector-stick tool on this old keyboard is very dark and scary. You'll infer that yourself when you have a listen! It was intended to be little more than a kids' synth by Yamaha but like several others I could name, the PSS-51 has some enduring features that a perfectly usable today.

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