let's take a look at how we went from this solderless breadboard to this
printed circuit board I'm Tom Kvichak and this is Toms Trains and Things this
channel was created to help other modelers who are in need of guidance in
pursuing their dream of building a model railroad and I showed you how to do a
circuit on a mini breadboard like this one here the solderless breadboard and
we transferred all of that over to a printed circuit board and I'm going to
show you how we did that I even did one of these old SMD lights that we did in a
previous video where we have magnet wire on it so you could take a look at that I
don't have it turned up all the way because it gets so bright let me show
you how I did that right after this if this is your first time here and you
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that you would like to see so go ahead and take a look at that so let's get
going with this right now I'm taking my original design and putting it on to a
printed circuit board and I rearrange the resistors a little bit on there but
what I'm going to do is I'm going to take them from here and then solder them
on this board here that's a good idea to have a second board so I could just as I
go I'll just take a piece off and then put it up on here and solder it on there
like that that makes it a little bit easier than
trying to solder it with all these leads sticking out at the bottom
right there so I'll just do them one at a time and I rearranged the resistors on
there so I would miss the holes I'm gonna have to I have some jumper wires
that I'm going to move on the bottom but I'm going to loop them around so the
mounting holes are clear on there I got the transistor two resistors in the
connector and and the jumper wire and what I'm going to do once I get to other
connector in the power connector over here so once I get all that in there
I'll test it out make sure it's good got everything hooked up now and so we're
gonna test it I'm gonna turn the potentiometer there we go alright this
is what I got done so far and as you can see I have the jumpers in there I got
the negative jumpers and I got the positive jumpers all I have to do is put
in the jumpers from the transistors to the potentiometers and I think that's it
I don't think I have to put any more jumpers in for the resistors here let me
see the resistors are covered the resistors go here then right there so
that's it all I got to do is put the little jumpers in there and I'll show
you how to make these jumpers and the best way to make a jumper is first of
all I'm gonna strip some wire off of there about twice as much as what I need
and then I'm gonna measure from there
- right there and see how I have it longer on one side and all I need to do
is push the insulation over and then Bend these down bend that one down bend
down one down make sure I got straight
straighten this one out a little bit let's see if they don't work here now
yeah I got them the right length right there so just have to figure out where I
need this okay so it's gonna go right next to the positive so the yellow and
go right there let's turn this over and
take a look at it
and that should be the center wiper on here so not I going to move it over one
does this let me see this ins it's gonna be like that so well this is going to be
down one here so is that in the right spot
yep nope I got to move it over one okay so we have to double check it all the
time some of this over one
and in there and what I'll need to do is look a black one just like it
now this one I have a short black piece right here so I'll strip some insulation
off of it and then I just need it okay so I needed to go from
here too there so and you see what I do here is I go one one whole past so that
gives me some room to turn and then one whole past on the other side so that's
about right there so just cut a little bit off of there and then bring slide
this back over
now let's see how that one fits
I push that and that goes right there and perfect all right now we got to
solder it now on this last circuit over here what I had to do was and you could
see I bent the black a little bit longer and curved it like this to go around the
hole there's a mounting hole right there so what I did was I just made it just a
little bit longer so it would go all the way around the hole I just have to
double check with this one keep my other board that I did and okay so the center
wiper on that potentiometer is the third one four five six seven and eight so
three and eight let's check this over here I'm looking for yellow on 3 & 8 so
1 2 3 4 5 6 7 8 ok so I got these jumpers in the right place okay we got
the soldering iron fired up and what I do
you always want to sponge damp but not overly wet I have alcohol here I got my
liquid flux here and this is one of those models that you could put paint in
it has the hole on there and if you shake it just a little bit you'll get
some flux up on the top and then just dab it with your applicator there and
then you could flux your connections and what I do is I take the excess the lead
and bend it just a little bit to hold it in place I guess it didn't have enough
on the black one to do that so between the tip with the tip cleaner and then
just to have a little bit of solder on the end of it and I try to find a way to
hold prop my hand over here I got a Crump with my little finger I didn't
even need to add solder to that one and then come over here and that one's bent
the other way so I'm gonna turn this thing around here I should have enacted
other way but right here and there we go but what I normally do is I have my this
thing here that I wear and I check I have an eye loop someplace but I don't
know where it is so I just check it like this to make sure that I didn't jump
over onto anything else a close attention to where you put your jumpers
in your components because you don't want to make a mistake like I did I ran
these jumpers in the wrong place well I was just one pin over too far so
I have to I had to unsolder I'm from you can see
right there there's still a little bit of solder on that one right - but I have
to solder right there now what I did was I have it flush with the hole because I
have to put a resistor across there and so I don't want to interfere with you
know I want to put the resistor as close as I can to the board so I have this
flush with the board so it doesn't stick out too far and interference so I so I
don't have to raise the resistor up too much I could keep the resistor right at
them up against the board okay so it's right there okay flatten it down a
little all right now the other end is right
here in the same spot and as you see I put an alligator clip right there to
hold it in place while I was soldering okay I have the transistor in place I
got the three leads right there one two and three
you're ready to solder those on there
we got okay that's the center one okay we'll turn this one down now you can see
I have an SMD like if you remember one of the videos that I did I soldered the
SMD or I saw that the magnet wires onto the SMD light now that one gets pretty
bright at 24 volts okay because that one's a bright white nothing yeah okay
now here's the other one and here's the third one now I may have
a bad potentiometer on this last one here I might have to change it up
because I'm getting a little fluctuation in it but there goes all three lights on
there yes you down there that's a I'm gonna replace that potentiometer on
there but anyway I would put it anywhere close to where you're gonna light up and
then just go straight on out to where you know the buildings or streetlights
or whatever you want to light up and put maybe three four foot of wire on it I
don't think that that would affect the brightness of these lights the wire that
I use for my jumpers on here these are also 22 gauge solid wire it would be a
good idea to get that type of wire if you're gonna be doing anything on your
circuit board because it works out really well that's 22 gauge you could
even use 24 gauge on there but there there's our lights on there
they shut this off this is 22 gauge stranded wire on here for the power
needs and here's what the bottom looks like I would recommend getting
let me move this out of the way this is a solder sucker you just push it in and
it has a release button on it and what you do is when your desoldering you just
put this up close to where your soldering iron is this is this is cooled
down right now but you just have this close to your work and when your solder
gets hot and melts you just go like that and it'll suck it right up and that's
what I did on here when I made the mistakes on there sucks it right up and
I think it was about seven or eight dollars at Amazon and everything that I
have here everything that I have here I got through Amazon except the circuit
board was through Sparkfun and then this holder here the circuit board
holder it this won't hold any sized circuit board that you would want to
work on it's spring-loaded and you could lock the top up here so these don't turn
but I have them loose but anyway I think this was about $12 Amazon everything
here is Amazon well we have an introduction to Arduino right after we
do the video on my backdrop it's gonna be a short video coming out Wednesday
and then next Saturday will be Arduino stuff and we'll be doing a few videos on
Arduino I'm not an expert on Arduino I just like using it and if you like doing
these projects here with these circuit boards then you're gonna love Arduino
because it's a lot easier and you could do a lot more the only thing that you
have to do is learn a little bit of programming and all all the programming
is already done for you you just have to copy and paste and play around with
something in there to get it to do what you want
us to do so check that out next week and we'll see Ya
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