Results 1 to 3 of 3
  1. #1
    500+ This must be a daytime job Boeing 747 Flyer's Avatar
    Join Date
    Nov 2009
    Location
    England
    Posts
    771
    Contribute If you enjoy reading the
    content here, click the below
    image to support MyCockpit site.
    Click Here To Contribute To Our Site

    Will these switches be acceptable?

    Hello everyone,

    I am looking to build my own CDU, for the LDS767 interfaced with O/C USBKeys Card, Lekseecon.

    I am just wondering if the following switches will be acceptable:

    - For the square, "Letter" Keys: http://www.rapidonline.com/Electroni...tches-1A/30275

    - For the circular, "Numeric" Keys: The one Nico uses in his 767 FMC

    - For the larger, "FUNC" Keys: The same as the Square "Letter" Keys, just with a slight modification to the looks

    Please tell me if these are okay, as I know some switches won't work (like make-before-break can cause some sratnge results), so please tell me if they are suitable for the job of the CDU.

    Thanks alot,

    Jack

  2. #2
    500+ This must be a daytime job ian@737ng.co.uk's Avatar
    Join Date
    Jan 2006
    Location
    Oswestry, Shropshire
    Posts
    677
    Contribute If you enjoy reading the
    content here, click the below
    image to support MyCockpit site.
    Click Here To Contribute To Our Site

    Re: Will these switches be acceptable?

    hi jack.........
    first of all, the 'make before break' condition doesn't apply to these switches because they are purely a pushbutton. that is you have to push them to bridge the contact and thus make the circuit (basically they are normally open until you press them when they become closed).
    perfect if you want to use them with the OC USBKeys card.
    however, i have used these switches and they are 15mm wide, maybe worth looking for a slightly smaller switch of this type.
    good luck anyway, you've got a lot of soldering to do, i know i built my first CDU as well
    regards ... ian
    Mr. Ian. P. Sissons is hereby recognised as an Honorary Flight Sim Captain following his passing in February 2016. This is in recognition for his commitment to Flight Simulation.

    www.mycockpit.org Featured Builder August 2008 www.737ng.co.uk
    FS9/PROSIM737/CPFLIGHT/Lots of BU0836X's and a Beer Fridge

  3. #3
    500+ This must be a daytime job Boeing 747 Flyer's Avatar
    Join Date
    Nov 2009
    Location
    England
    Posts
    771
    Contribute If you enjoy reading the
    content here, click the below
    image to support MyCockpit site.
    Click Here To Contribute To Our Site

    Re: Will these switches be acceptable?

    H Ian,

    The size of the switch is perfect for my CDU, I already have a few and they are fine (I am more worried about the technology circuit side of things).

    Hopefully they will do the job then.

Similar Threads

  1. What is acceptable?
    By AlexJ in forum General Builder Questions All Aircraft Types
    Replies: 3
    Last Post: 09-30-2009, 02:09 PM
  2. Switches?
    By Drewsta in forum I/O Interfacing Hardware and Software
    Replies: 5
    Last Post: 07-21-2008, 11:06 AM
  3. switches and more switches...
    By Jackpilot in forum Cockpit Parts and Motion Platforms
    Replies: 0
    Last Post: 01-10-2008, 06:18 PM
  4. switches?
    By Brenton Hill in forum I/O Interfacing Hardware and Software
    Replies: 8
    Last Post: 12-20-2007, 08:16 PM
  5. Toggle switches to momentary switches?
    By Patrik in forum Where to Start Building a Home Cockpit
    Replies: 5
    Last Post: 10-23-2007, 10:58 AM