From: baron@linuxmaniac.net   
      
   Searcher7 prodded the keyboard with:   
      
   > On Saturday, November 20, 2021 at 5:15:15 AM UTC-5, Baron wrote:   
   >> Searcher7 prodded the keyboard with:   
   >> > 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.   
   >> 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.   
   >   
   > 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 PCBs. All of which will individually use the same monitor.   
   >   
   > But certain image parameters may vary from one game board to the   
   > next and it would be too much of a pain to open up the cabinet and   
   > manipulate controls on the chassis every time I needed to correct   
   > the picture.  I can just connect and make them part of the   
   > mechanical switching action, which is initiated by a knob I push and   
   > turn.   
   >   
   > If anyone has ideas on where to get sliding poteniometers I can use   
   > for thuis project, I'd appreciated it.   
   >   
   > Thanks.   
   >   
   > Darren Harris   
   > Staten Island, New York.   
      
   Have you considered the motorised sliders as used on sound mixer   
   decks ?   
      
   --   
   Best Regards:   
                         Baron.   
      
   --- SoupGate-Win32 v1.05   
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