[ELECTRON] Servo control question

[Roy Mohan Shearer]

Hello. I'm having some trouble controlling servo motors. I have nine
to work with on this project and ideally I'd like to make each
controllable from their own potentiometer, so I need some kind of
controller circuit - have tried one design found online without much
luck.
Does anyone here have experience of this, or have such a controller
that I can try out?
cheers,
Roy