MAKE presents: The Resistor
ฝัง
- เผยแพร่เมื่อ 11 ม.ค. 2025
- Simple, commonplace and vital to our electronic world - take a closer look at the current-fighting backbone of circuitry, the resistor!
Find more at the Maker Shed: makershed.com
Make: Electronics, 3rd Edition: www.makershed....
audio & video by Collin Cunningham
Makezine.com
Learn more here:
makezine.com/vi...
More Make Presents:
The LED: • MAKE presents: The LED
The Capacitor: • MAKE presents: The Cap...
Ohm's Law: • MAKE presents: Ohm's Law
The Inductor: • MAKE presents: The Ind...
The Multimeter: • MAKE presents: The Mul...
The Oscilloscope: • MAKE presents: The Osc...
The Integrated Circuit: • MAKE presents: The Int...
The Diode: • MAKE presents: The Diode
The Transistor: • MAKE presents: The Tra...
I have to say , watching your videos have taught me a lot . I also like the fact you explain how the parts came to be and its inventors. Thanks for making such very informative videos...
CAP
I have almost filled my notebook with your videos, thank you!!
Spent a few hours trying to figure out how a capacitor works. Watched this guy's video that was
these vids are very soothing for some reason....i love this guy! very good teacher
I love the HD mode. It looks so GREAT. Nice camera man.
The bit with the LED and the pencil resistor earned my subscribe. Will show this to the kiddos
I am student of EIE(electronic and instrumentation engg.), its my first time to get some thing practical. Its good way of teaching.
Why can't we have ellegant and practical presentations like these at school or college ?
Collin's Lab King, we love you!! Thanks for all the videos over the years
Ok, I just finished the video. It was pretty cool and I'd like to see more of this like the way you did the L.E.D video.
daymn man i love this make magazine,, these are bunch of geniuses ,, helps me alot since i m in school learning.. so thanks guys..
I think i've seen this presentation about 5 times. Love the pace, hardware, history, shirt, tie, back wall. Not sure what this says about me. Don't tell me.
This would make a _perfect_ in-class project for high school science. Bravo.
@lasaldude Resistors are also measured in watts. The wattage marks indicate how much power a resistor can handle. You wouldn't want to use a 1/4 watt resistor in a CRT deflection circuit for example because it would burn out.
I just got the make: mini piano learn to solder kit. Saw youtube page. First video watched. Insta-subscribe. You guys are freaking awesome.
@Pyrotach Hold the resistor so that the stripe closest to an end of the resistor is on your left. This represents the highest digit. ---[RB ]------ if this diagram is a red and brown stripe, this would be 21. There's probably going to be a metallic color as the last band, showing the tolerance (accuracy) of the listed value.
A variable resistor is made of organic conductors and ohmatic voltaics. You need a stranded current gate and some insulated ocillating filaments (I use at least 3 for safety) in order to prevent blowback. Take care that you limit the voltage to as close to 1/16th of the value of the length of coil for the best efficiency. Don't forget to ground the anode (I learned that the hard way!) and a farad-polarized gap meter is good for watching the non-linear signal decay, if you want to get real fancy.
Learned more than i ever do in school.
thank you.
Omg, I've always loved transistors when I was a kid, they look so beautiful!!
Resistors
That was awesome! I have to show my son that trick at the end, making your own variable resistor to light an LED. :). May that will excite him more about this stuff...
"MISTER ANDERSON!"
rather Ms. Terander's Son, Smith.
I was thinking the same thing.
love the sound during lecture :P
That graphite variable resistor was really clever :D
this is intresting, because theoretically, with a couple of pencils and glue on components, you could draw a functional electrical circuit on a piece of paper. i assume if you can make resistors, you could make caps as well, by drawing surface areas on both sides of the paper and using the paper as the dielectric.
@johnhodgson90 A knob controlling volume or something similar is a variable resistor, so yes.
The techie music that goes along with dialogue in your videos is brilliant. Thankyou for educating and entertaining simultaneously. Are you the founder of Make Magazine?
That's seriously helpful, thanks for your effort. I like the real example to illustrate the benefit of an electronic component. Keep the good work up. The best thing in the world to share the knowledge for free :).
I'm doing a net correspondence course on electronics. Keep the vids coming....
@Ciaran55, it is a Sequential Circuits Prophet 600.
I was thinking it was a Pro-One ....
i like this videos coz he shows practical examples to explain the concepts........thanks for this informative video.
@ricardo161584 If they're in serie you will need a better power supply than 6V
In this calculation i used 24V:
6 leds * 3,3V = 19,8V
(24V - 19,8V) / 0,025A = 168 Ohms Resistance
If they're in parallel you can use 6V:
(6V - 3,3V) / 0,025A = 108 Ohms / 6 leds = 18 Ohms Resistance
This was great tutour! Can't wait for more! :)
Thoroughly enjoyed such a simple test that's filled many gaps I wish I had been shown that at school all those years ago maybe the Ladybird Books had it but I missed it tnks.
you are awesome. wish i had a teacher like you
I loved this vid, it's explained so well
A very informative and interesting way to understand the theory great way to learn .
woooww i liked so much all your videos i studied electronic at school and you rules man!! thanks!!
Any chance of turning this and the LED video into an ongoing series?
love the demonstration with graphite.
Please do a vid on the FLUX CAPACITOR
If he shaved his head he'd look like agent smith from the matrix
Adam Luoma maybe thats him out of the matrixs???😉
Some LED's come with the description 2V, doesn't that mean that a 9V battery will burn it out, or doesn't it matter as long as the resistor connected in series with the LED limits the current to let's say 30mA?
wow the HD really makes an impact :o
this was very clear in its explanation power thaanks a lot bro whoever u are with the galsses in the video
woo i love HD!!
and i didn't know that u can actually make ur own resistor... great video
What an excellent explanation!
@visualeffectschannel They should give awards to things like that on how long and complicated the school system can make things seem.
interesting, so does it matter how dark you shade in the resistor on the paper???
. The first year of my A+ class we used them To build simple circuits. And by A+ i mean I too a A+ certification class. I too It for three years but couldnt get the money to take the test and none of my teachers took it seriously. We barely ever touched computers and they only kinda gave me an understanding on the basic math and parts of a computer.
Really nice experiment, I will try out different figures to see how it goes :)
just attach a 330 ohm resistor to the non-battery side of the LED and use that resistor as your probe. that way you won't have to worry about letting the smoke out of the LED when you connect the two probes on the pencil ash.
Hi Collin. Would you make a vid explaining pull-up and pull-down resistors please? I've seen others but I bet you'll do a better job. 👍🏼
A little video about attenuators please..?
Thanks Colin 👍🏿😃
THANK YOU I don't want to buy or hunt down a real one so this on is perfect to use.
Why do the" white "LEDs flash different colors in the toy I bought in the Dollar Store ? Three LEDs in a row two button batteries , the 3 LEDs one in a holder all by it self. Yes! there's a mysterious brown lump on the bottom side of the circuit board.
which one should be fixed the watts of the resistor or the ohms of the resistor?
can the watts of the resistor be any watts but just as long the ohm is the same or close to what you???
How do we know how many Ohm's is needed to resist a certain amount of voltage or ampage.
What's the synthesiser at the beginning?
Complete noob with a question,
Suppose i had a six amp current and a hand full of led only able to handle 3amps,
If i had no resisters could i run 2 leds in parallel to make up for my lack of resistors?
Still comeback to these.
Great videos! Keep up the good work! They really help us newbies :)
how do you read the resistor? i found an old resistor and it has one red stripe (2) and a brown stripe (1). does that read 12 or 21? plz help!!
ur not the only one my man.... i m resistors fan too
where would u find a 150V power source that only provides 50 mA?
what do we do if we want 1 amp to flow at 12vdc? would the resistor be 1 ohm?
Sir thanks sir
For make me understand in optimal way
thank you
@JiraiyaZantIssun Use Ohms law, Most LED's are designed to work at 20mA, since you have a Jumbo one i would say it needs 30mA. Now we take these values and put them in Ohm's law, 9v/0.03A=300, so you would use a 300 Ω Resistor.
Your welcome :)
Heelo ..Cullin.... Sir Your channel is user friendly. ....i love it
Someone please help I Have a jumbo LED and a 9 volt the LED can only take 3.4 volts what resistor do I need?
hey i want to make an home laser security but 1 of my materials is a variable resistor what is it what is the use of it?///
Does the resistors low the voltage?
i have read that using a resistor as a dimmer wastes energy via heat given off. is this true?
10/10 best minecraft tutorial ever!
WOW! nicely explained.
BORING? this was AWESOME !
where to buy a 106 GΩ ±1% resistor?
You know, I have a receding hairline, and this is the first guy that pops into my head when im standing there at the bathroom mirror thinking "ITS ALL OVER" this guy looks fucking awesome. This guy knows how to pull off the receding hairline. He gives me hope. :')
What about a gold stripe on a resistor?
it`s only for 3rd(x10?-1) band and 4th band-tolerance% (plus-minus 10)
AVEsome and working with different color crayons?
what synthesizer is that?
You had me at the analog synth.
how do you know what value of Resistors to use when using them with an led? lets say using 12v source.
Use the formula *R = (Vcc - (Vf × n)) / If*, where *R* is the resistor value in ohms, *Vcc* the supply voltage, *Vf* the LED's forward voltage, *If* the LED's forward current in amps and *n* the number of LEDs connected in series.
how can one calculate the final voltage let's say input voltage is 6 volts DC at 1 amp and I want an output of 2 volts DC. How will I find the resistance needed?
well you use this formual. R=[ Voltage source(6) - Voltage drop(2) ]/ C (current=1A) (6-2)/1 = 4ohm needed I think this is how it works.
It obviously is measuring *something* as a sine wave is there.
what does a resistor with 0,25w and 0,1% what does the procent mean
This is a great video.
hi sir can i know all the names and and pictures of alll the variable resistor tnx ....
wow, first video ive watched in hd on youtube.. and first anything ive vatched in hd on my 1080 laptop... wich ive had for like 3 months ahaha. nuce vid. even though i thought this was a video giving ideas on Actual make-it-yourself tech Presents.. wch would be cool.. cause im cheap. got any ideas on that btw?
Surprisingly Interesting
The Carl Sagan of Electronics Engineering. 🤘
Since I started education with electronics after primary school its always been U. However now at university we have to use V.
(In equations when voltage is present as a non numeric value =)
:10 hello mr. anderson... welcome back
make a video about rheostat
What's the melody in the first 10 seconds?
+acidvenom What indeed? Seems like he improvised that...
Oh my god!! you're a genius!!! 4:05
hes a good teacher, but there are things he could improve on like hand movements and the general flow of the video and stuff
other than that great vids i learned alot :P
how do i have to connect it with a motor
I'm gonna go draw up some circuit boards now