1. Home
  2. Hobby Electronics Basics
  3. Potentiometer Project

Potentiometer Project

I'm working on a custom project that involves potentiometers and picture adjustments on the monitor they are connected to.

To determine whether or not the potentiometers I need exist or if I need to build them, I need to resolve two questions and the possible issues they bring up.

1) This may seem like a crazy question, but are there low-friction potentiometers? (I'm referring to the physical friction incorporated into the pot to retard motion).

The reason I ask is because I guesstimate that in an extreme case, I'd need a potentiometer's knob/slide to rotate/travel it's full length 100 times in a single day. (Though in reality there probably wouldn't be that many cycles in a month).

This brings me to the second question.

2) Can a pot with a knob/slide that travels a distance of only one inch be adequate to cover the extremes for image parameters like Brightness, Contrast, Horizontal size, Horizontal position, Vertical size, & Vertical position?

To clarify my goal. I want to be able to quickly establish and lock in all six settings via mechanical means.

Springs will keep the knobs/slides at one side of their range, and when I need the correct settings, a plunger will ensure accurate re-positioning of the knobs/slides.

Thanks.

Darren Harris Staten Island, New York.

Reply to
Searcher7
Loading thread data ...

Searcher7 prodded the keyboard with:

Hi Darren, What you are asking used to be commonly done on monitor and TV production lines, before the advent of digital circuits.

--
Best Regards: 
             Baron.
Reply to
Baron

The idea is to do this mechanicaally and stay away from digital circuits.

I designed a switcher that would allow me to switch between a dozen game PC Bs. All of which will individually use the same monitor.

But certain image parameters may vary from one game board to the next and i t would be too much of a pain to open up the cabinet and manipulate control s on the chassis every time I needed to correct the picture. I can just co nnect and make them part of the mechanical switching action, which is initi ated by a knob I push and turn.

If anyone has ideas on where to get sliding poteniometers I can use for thu is project, I'd appreciated it.

Thanks.

Darren Harris Staten Island, New York.

Reply to
Searcher7

Searcher7 prodded the keyboard with:

Have you considered the motorised sliders as used on sound mixer decks ?

--
Best Regards: 
                      Baron.
Reply to
Baron

No. I have no idea what that is, but if they are motorized they wouldn't work for me.

Darren Harris Staten Island, New York.

Reply to
Searcher7

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.