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Thread: Korry Switches

  1. #1
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    Korry Switches

    I probably should have asked this question before I almost finished it, but are the Korry Switches in the B747 Overhead Panel latching or momentary. Which is best to use. I made my Korry Switches out of 3/4" and 1" Acrylic square tubing. I've tried tactile, mini latching and push button latching switches (1st pic)and none have been satisfactory mechanically; problems with my korry buttons sticking or moving around because they aren't psychically attached to the switch, just positioned against it. I guess I need something a little more heavy duty with a plunger that I can actually attach to the Korry button. I was looking at this switch online (2nd pic), The cheapest I can find is for momentary $2.35 x 78 switches = $183.30 or for latching $2.75 x 78 switches = $214.50. Way more than I want to spend unless they work much better. Has anyone else had better success at building Korry switches?

    Jerry
    Switches.jpgpushbutton switch.jpgB747 Overhead.jpg

  2. #2
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    Re: Korry Switches

    Jerry,
    Here is a link to someone who made their own and they used similar to your pic 2.
    I think he used non latching.

    http://home.hccnet.nl/jwopdenakker/building%20tip.html

    Ebay has switches of both Latching and non latching, probably not up to your usual C&K standard.

    Here is the links
    http://www.ebay.com/itm/50-Momentary...item4acec405c4

    Les

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    Re: Korry Switches

    Quote Originally Posted by iwik View Post
    Jerry,
    Here is a link to someone who made their own and they used similar to your pic 2.
    I think he used non latching.

    http://home.hccnet.nl/jwopdenakker/building%20tip.html


    Les
    I actually got the idea to build my Korry switches from that site. I didn't like the way they turned out using the solid rod, there was too much bleeding between the leds so I remade them with acrylic tubing and put dividers between the 2 leds. I wasn't able to find the switches he used so I tried using tactile switches but they didn't work very well. The switches on Ebay look like the same switches with caps on them but I can't tell for sure. There a lot cheaper than the ones I priced. Is there any way to find out?

    Jerry

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    Re: Korry Switches

    Jerry,
    I bought 30 of the momentary ones which I have no use for now. Was going to use them on an OH panel.
    Measured and they are very close to the size of those used in the link I provided. The switch connections
    are the same. So they are a Chinese copy of the C&K.
    Should imagine the usage a home cockpit gets they should be fine if your finances are stretched.
    If you like I can send you one so you can see what you will be getting.
    Les

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    Re: Korry Switches

    My cockpit uses Project Magenta, not sure if that makes any difference whether I use momentary or latching switches. When I started building my overhead I was just learning to use SIOC and was totally lost. I couldn't get the tactile switches to work right but I think it was my lack of understanding plus problems with wiring. What is the overall size of your switches? Can I take the cap off and insert the plunger into the korry button, will that still allow enough travel for the switch to work? I'd like to see a sample but Dallas, Texas is a long way from New Zealand and I'm not sure what the shipping would be. How much do you want for them?

    Jerry

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    Re: Korry Switches

    Jerry,
    The caps pull off, the dimensions are very close to what the guy used in the above link. Shaft length is 5mm and is same as used by the guy.
    PM me your address and will send you 10 for free. Ill keep some as my OH will use 10
    when I make my Korrys.

    Les

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    Re: Korry Switches

    Thanks Les. What kind of cockpit are you working on?

    Jerry

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    Re: Korry Switches

    Jerry
    An A320, Cessna C177RG and a Generic GA on a small motion Platform.
    All at different stages of construction.

    Les

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    Re: Korry Switches

    Quote Originally Posted by iwik View Post
    Jerry,
    PM me your address and will send you 10 for free. Ill keep some as my OH will use 10
    when I make my Korrys.

    Les
    Les

    Forgot to let you know. I received your switches last week. Thank you so much. They're a little bit smaller than I expected but they should work much better than what I've been using.

    Jerry

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    Re: Korry Switches

    Jerry,
    Thanks for the update, hope they work out ok.
    Les

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