Results 1 to 3 of 3
  1. 01-30-2012, 10:02 PM #1
    737NUT
    737NUT is offline
    500+ This must be a daytime job 737NUT's Avatar
    Join Date
    Feb 2006
    Location
    Indianapolis, IN
    Posts
    760
    Contribute If you enjoy reading the
    content here, click the below
    image to support MyCockpit site.
    Click Here To Contribute To Our Site

    Need some help finding a potentiometer

    Hey Guys,
    I have searched for a few hours for a special precision potentiometer that I need for my altimeter project.
    It needs to meet the following specs,

    5K resistance
    20 turn (could be 25 turn)

    1/8" shaft (1/4" could work)

    7/8" to 1" body diameter

    The only ones I could find where 3"+ in diameter! Yikes.

    Thanks for any input,
    Rob
    Reply With Quote Reply With Quote
  2. 01-30-2012, 10:41 PM #2
    Westozy
    Westozy is offline
    MyCockpit Support Staff
    Builder Of The Month / Point Value: 100
    Total Awards: 1
    Total Points: 100



    Westozy's Avatar
    Join Date
    Nov 2005
    Location
    Perth, Western Australia
    Posts
    1,412
    Contribute If you enjoy reading the
    content here, click the below
    image to support MyCockpit site.
    Click Here To Contribute To Our Site

    Re: Need some help finding a potentiometer

    Hi Rob, have you considered a small gear drive to multiply turns? Could be done quite easily if you have got some depth in the guage build!

    Cheers Gwyn
    Aerosim Solutions

    737NG using Prosim737, Immersive Calibration Pro, Aerosim Solutions motorized TQ & cockpit hardware, CP Flight MCP & FDS SYS1X, SYS2X & SYS4X, FDS PRO FMCs, AFDS units & Glarewings, Matrix Orbital ELEC display, Pokeys Landing & Cruise alt display, Buttkicker Gamers, 3 x BenqMW811ST projectors with a Matrox Th2Go
    http://www.aerosimsolutions.com.au
    Supporter of MyCockpit.org, please join me in donating!!!
    Reply With Quote Reply With Quote
  3. 01-31-2012, 07:57 AM #3
    737NUT
    737NUT is offline
    500+ This must be a daytime job 737NUT's Avatar
    Join Date
    Feb 2006
    Location
    Indianapolis, IN
    Posts
    760
    Contribute If you enjoy reading the
    content here, click the below
    image to support MyCockpit site.
    Click Here To Contribute To Our Site

    Re: Need some help finding a potentiometer

    Quote Originally Posted by Westozy View Post
    Hi Rob, have you considered a small gear drive to multiply turns? Could be done quite easily if you have got some depth in the guage build!

    Cheers Gwyn
    Aerosim Solutions
    Hi Gwyn,
    Yes, I may have to use a 10 turn but that will hurt my resolution as then the pot will only turn half a revolution for every 1000ft. I am building a 0-20K ft altimeter and hence the need for a 20t pot. Would make for better accuracy with a 20t.
    Rob
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »