now that we're getting close to Christmas you see these LED light
strings in many stores I got picked this up at Old-Time Pottery you could find
these in Michaels and any other craft store now they use either two or three
double A batteries in here which brings it to three to four and a half volts I'm
going to show you how to separate these and use them on your model railroad now
I paid 495 for 99 for now just this past week but if you go after Christmas you
can get them like half-price or 60% off I did that last year on a few of them
that I picked up at CVS and I'll show you those also so let's get started with
this right now hi I'm Tom Kvichak and this is Toms Trains and Things we're
gonna learn something today about LED lights I got four of them right here
that I already made up and I'm going to show you how I did this I got a resistor
in here and I put some shrink back tubing over top of it and we're good to
go to add these to our building so let's
get started with this and I'll show you how I do it as we open this box you'll
see that there's not much to it you get a little string of Lights or a string of
LEDs and you get this little container or receptacle here where you could put
your batteries in there takes three double A batteries and a set of
instructions which really doesn't tell you anything so what we're gonna do
we're gonna do some experimenting with this and see what we could do with these
lights and you and let me get down to this end of it here and you can see is
doubled back so it doesn't short on the other wire one wire comes this way and
one wire comes that way and it's covered with insulation so it doesn't get
shorted on anything else there but I'm going to pull this off here there's the
wires right there and they're pretty thin why
I'm gonna get some batteries I'm gonna show you how bright these are to begin
with I have three new double-a batteries and all insert them in here and let me
turn the lights off and you can see bright they are or how did they are and
these are warm white eye but I did that because I didn't want them to be too
bright because I'm gonna put these on in buildings just got a switch on it so I'm
gonna cut off the last ten put this side over here and I'll make sure that these
aren't shorting out anywhere and then I'll turn this back on let me cut the
lights now they possibly have a little resistor
in here so what I'm gonna do we're going to hook this up to my power supply with
the 3.3 volts and see how that looks there I have some alligator clips and I
hooked up to my power supply okay and the black one right here is the negative
so you can look on here this is the negative side and your power goes
through there through the batteries and over here is the positive side and you
can see they have a wire going through here up to the positive terminal right
here right now I get turn the power supply on okay and now turn the power on
on here and you can see now this is three point four volts let me turn the
lights up and you can see what they look like here now we could knock these down
and divide these and say you want to put three in the building we can do that
and I'm gonna show you how to do that so we have 20 lights on this string all
together and I put 10 I cut it off at 10 so we could do 3 3 & 4 on one string or
any combination that we want to let's get started with them that put the
lights back on so we could see what we're doing here and let me turn the
power supply off what I want to do here let's hook this up to the red right here
and see what it looks like and it may look just a little bit brighter so what
I'm gonna do I'm gonna switch it back and forth to see if we could tell the
difference between the voltage here so that's the 5 and that's the okay that's
the 3 and that's the 5 will go back 3
and 5 it's just like the eye doctors this one better or is that one better we
have our choice of the voltages we want to use I don't think it really matters
because the way that we're going to hook it up if we need to we could use a
resistor to limit the current on the LED so what I'm going to do right here I'm
going to cut off three of these LEDs in fact I'm going to use this on the one
that doesn't have the resistor on it so we'll take this one one two and three
and cut right in the middle there so we got three three of them right there now
the type of wire that they use on there has just a coating on top of it that we
could scrape off
because this is too small for my wire strippers I mean my own wire strippers
only go up to 26 gauge so we'll just strip that back like that now I have the
string of three right here I put a hundred ohm resistor on the breadboard
right here and I have this hooked up to the 3.3 volts so let me turn this on and
this on you could see the difference on there I have three of them together on
3.3 volts with a hundred ohm resistor in series with it and they look pretty good
for lighting up a building and we're going to try this out and we're gonna
incorporate a resistor in there I played around with different configurations
here even did it without a resistor and burned out the centre LED on here but
now I have it hooked up to five volts and I have a 68 ohm resistor in there so
there's that and here's the original I'll shut the lights off and you take a
look at it so 68 looks pretty good for lighting up the buildings and we might
be able to go a little bit brighter maybe I could drop it down but we could
play around with that but 68 looks pretty good and I have five of them so
we're good to go with playing around with using the 68 ohm resistor and the
maybe three to four LEDs on a string what I did here was twisted the wires
together from the resistor and the lead from the LED and I'm going to solder
them on there just make sure that my is hot enough and I already applied the
flux to the wires she's hot let the solder melt right into it
I'll bring that up here and what I'll do is I'll put some some shrink wrap on
there that's good and tight right there I've cleaned that up a little bit I'll
put some shrink heat shrink on that all the way back to here cover up the
resistor and then we'll have our two leaves there for our power on it before
I put the shrink tubing on there we'll just make sure that this works and just
okay so it works I have an assortment of heat shrink tubing and I found one that
works perfectly and I'll put it right there and heat it up it'll cover the
resistor and cover up the solder joint on there and we'll be good to go with it
I have four LEDs on this strip and a 68 ohm resistor so we'll just shrink this
tubing up right here over top of the resistor and the splice that I did okay
here we are we now have a strip of four LEDs and a resistor 68 ohm resistor on
here that we could use to mount anywhere on our layout in a building for lighting
outside a building on a billboard or anything these are really small LEDs on
here there's one right there so that's how small they are so and you
could bend these wires back this way and have them anywhere in your building or
anywhere else on your layout to have some lighting on there so there we go
with that and I'll show you how to mount this into a building in another video
and make a little connector for on the end so all you have to do is put your
wires at the back of the building and you're good to go
well I hope that was informative I learned something there and I hope you
learned something on that too now you could pick these up anywhere
especially after Christmas and you get maybe 20 lights in there but you could
also get the strip's I have one of them come and they should be here today I'm
filming this on Monday and so I have the the strip of a hundred LEDs coming so
I'm gonna be experimenting with that too and if I get them early enough I'll put
them in this video also but if I don't they'll be in another video last year
after Christmas I picked up about four boxes of these at CVS for about $2 a
piece they're a string of 50 lights for a Christmas tree now these can be used
on your layout for lighting up over a valance or something like that
I've seen these used many times and to two boxes of these will run 25 feet I
picked up four of them and I also picked up another one of these this is a 30
string of Lights of LEDs and this was at Michael's and I also picked this up
after Christmas you can get some pretty good deals after Christmas on LED
lighting in any craft store Home Depot has it old-time pottery is where I got
the these Michaels Joanne's Hobby Lobby it'll usually go as far down as 75% off
so you can get a pretty good deal on them coming up on Saturday we have a
another episode episode number 18 of Model Railroading For Beginners and it's
going to be on mistakes that modelers make especially the new ones look for it
on Saturday at 10 a.m. if you want to get any supplies or parts that I used in
this video go ahead on over to my Amazon page amazon.com/shop/Toms
trainsandthings and you could find a lot of different things in there
including books on track planning and DCC some Digitrax components and
NCE-even editing software and a bunch of stuff that we use
here on this workbench right here so We'll see Ya
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