(Topic ID: 60467)

LED - Test Bench ideas for testing ??

By asnatlas

5 years ago

Topic Stats

  • 19 posts
  • 13 Pinsiders participating
  • Latest reply 5 years ago by asnatlas
  • Topic is favorited by 3 Pinsiders


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    #1 5 years ago

    I wanted to build a small "test bench" for testing LEDs. Anyone have any ideas on what to use to supply power for the LEDs for 6.3VAC/DC and 13 VAC/DC. Would I need "button" to test flashers ?? I would like to build something that is simple, yet cost effective...

    #2 5 years ago

    No 6.3 DC ?

    I'd do a button for flashers.

    LTG : )

    #3 5 years ago

    Here are some of the parts that come to mind that I would need:

    Alligator Test Clip Set

    Miniature wedge Base 2-Lead Socket With Front Mounting Bracket

    Bayonet Base 2-Lead Socket With Short Mounting Bracket For #89 Bulbs

    Stern Service Button

    Other then a power supply and maybe some resistors, would anything else be needed ??

    #4 5 years ago
    Quoted from LTG:

    No 6.3 DC ?
    I'd do a button for flashers.
    LTG : )

    Are there 4 types ??


    Or just three ??

    #5 5 years ago

    Maybe get a transformer from a parted pin and connect into the GI tap with a fuse. For the flashers one of those cheap 12v power supplies made to power things through a cigarette lighter usually puts out a little over 13 volts. Use that with a momentary contact switch.

    #6 5 years ago
    Quoted from asnatlas:

    Are there 4 types ??


    Or just three ??

    I know there are just DC ones and matter which way they go in or they won't light.

    LTG : )

    #7 5 years ago

    You probably have all the correct power supplys in your house or garage. Cell phone chargers, battery chargers ect... take a look around otherwise goodwill usually has a ton of them for a buck each just find the voltage ypu need. Positive on bottom for gi side for controlled in bayonet styles. Get a 3.2v for single led testing. Just use a 12v supply and resist after your flashers.

    Use 2 of ea for side by side comparison.

    #8 5 years ago

    someone build a test box to hook up to a variable power supply, I'll buy 2,

    #9 5 years ago

    Sounds like a cool idea, but the hitch I see in it is finding quality lamp sockets that can take the abuse. It's one thing to stick an LED in there and leave it, but they fail pretty fast if you constantly change bulbs.


    #10 5 years ago

    I built our test equipment to be affordable.

    I purchased a 15V DC Digital Power Supply from Ebay, under $60 delivered with Clips.
    I purchased additional Banana Cables, Plugs, and Project Boxes, from an Electronics
    Store. I reused Pin sockets, 555, and 44/47 in project boxes. Added a $15 lightmeter.
    Under $100 complete, and have used to test all bulbs.....works like a charm.
    Here are some pics:


    #11 5 years ago

    We have a battery powered unit with 2 6 volt batteries....12 volt going to the flasher style sockets and 6 volts going to insert/gi style sockets...

    #12 5 years ago

    Isn't the simplest 'test-bench' the machine it is going to be installed into? If it doesn't work in more than one appropriate socket, I would say it might be bad?

    I'm not sure what use this piece of equipment would have if you own a machine?

    #13 5 years ago

    This depends on what the purples of the test bed is. If you just want the lights to light up, get a cheap USB hdd adapter (around $10) and use the power supu from that. It carries 12v and 5v DC. Enough to power the 6.3 and 13v bulbs although not really brightly but enough depending on the goal.

    #14 5 years ago

    markmon, you referring to one of these ??

    amazon.com link »

    Purpose is just to make sure the bulbs are working. I don't want to open up a machine each time I want to test LEDs/Bulbs...

    #15 5 years ago

    So super simple way as well is to get battery holder from radioshit that holds 4 AA batteries (ie 6 volts). These cost like $3 and come with wires coming off them. ?GRab a 2 pack of alligator clips for maybe $1? Grab some batteries while there since they always seem to be on sale or something.

    So, for like $5 you can test till your heart is content.

    Or you can build this....

    CAM00356.jpg CAM00357.jpg

    #16 5 years ago

    Nice work

    Build it & the sales will come

    #17 5 years ago

    I built a test jig for testing 47 and 555 bulbs. The video shows a down and dirty build.


    I since added 555 sockets as well. I'll post a pic later. I still need to fancy it up but it works fine as is.

    #18 5 years ago

    cheap USB hdd adapter

    ...or an old salvaged PC power supply...


    #19 5 years ago
    Quoted from KenH:

    ...or an old salvaged PC power supply...

    I was thinking about that as well. I have a few of those laying around...

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