The Soundtrax book says I need a resistor value of 560 Ohms. What would that color code be. I have piles of old resistors from on old electronic organ, but I don’t know how to read the colors. I down loaded some dirrections, but could not read them either.
Art,
Here is a web link to the color code chart:
For a 560 ohm resistor, you should have something like a ‘Green/Blue/Brown’ stripe pattern…
Jim
Jim,
The link doesn’t work. When I run my mouse over the link, it’s actually three separate links grouped together.
Tom
I am an electronics nuclehead.
What do you need a resistor for?
Is it possible to use a resistor as short protection instead of the lightbulb idea?
How would it be wired?
This link works:
John,
Art wants to put in an LED for his headlight. (John, see Art’s other post “resistors for 1.5 volt little bulbs???”: http://www.trains.com/community/forum/topic.asp?TOPIC_ID=65445)
3mm LED are 1.5v so they need an inline resistor in order to bring down the voltage so that the LED doesn’t fry.
Tom
Tom, do you have any thoughts on the other questions I had?
What I want is the 1.5v bulb. My decoder doesn’t like LEDs and my engines have no room for them. Thus the bulbs.
Jim, I think Green/Blue /Brown is what I was after. Thanks. Now to see if I can find some.
John,
Read my response in the other link. The answer will be there. [:)]
Tom
Charlie,
Thanks for the link. [:)] I’ve bookmarked that one.
Tom
Sorry Tom, I should have explained more clearly.
My question is it possible to use a resistor or the like to protect against a short caused by a tortoise?
Comes up two separate links on my page. Niether one of them work.
Not only does that original link not work right, it really messes up the spacing on this thread.
Resistors reduce the voltage when used in series in a circuit.
Yes, but it obviously wouldn’t light up when there is a short. So it would not be a good indicator. I would be wired the same way the light bulb is wired.
The colors represent the #. Try this,
BAD = BLACK = 0
BOYS = BROWN =1
RACE = RED = 2
OUR =ORANGE = 3
YOUNG = YELLOW =4
GIRLS = GREEN = 5
BUT = BLUE =6
VIOLET =VIOLET = 7
GENERALLY = GREEN =8
WINS = WHITE = 9
THERE MIGHT BE A SILVER OR GOLD AT THE LAST THIS I’M NOT SURE OF, IF YOU STILL NEED HELP, I WILL ASK MY DAD TO SEND YOU AN E MAIL HE CAN EXPLAIN IT.
MIKE
Silver and Gold are tolerance values; Gold=5% tolerance; Silver=10% tolerance. For example, if your resistor is BROWN BLACK BROWN SILVER, than the value should be 90 to 110 ohms given the nominal value of 100 ohms
BROWN 1 BLACK 0 ; Concatenate these numbers: 10
the third color band BROWN is the multiplier 10 times 10 equals 100
I hope this helps. TIP: Start reading the bands from the color that is closest to the edge of resistor’s cylindrical body. You will notice gold and silver bands are “indented” and not “close to the margin” metaphorically speaking.
Also to explain the third band further:
BLACK = X1
BROWN = X10
RED= X100
ORANGE= X1000 OR X 1K (KILOOHMS)
YELLOW = X10,000 OR X 10K
GREEN = X100,000 OR X 100K
BLUE = X1,000,000 OR X IM (MEGAOHMS)
VIOLET = X 10,000,000 OR X 10M
GRAY = X 100,000,000 OR X 100M
WHITE = X 1,000,000,000 OR 1G (GIGAOHMS)
SILVER = X0.01
GOLD= X0.1
for more info, go to http://www.bcae1.com/resistrs.htm
I always thought it was Bad Boys Rape Our Young Girls But Voilet Gives Willingly…hehehehehe…OK…so i’m from the old school…chuck
That’s what I was taught too, Chuck, but I wasn’t sure I should post it here.[^]
Looks like chicken tracks on a barbed wire fence to me, and I almost always score 187 out of 200 on the IQ tests. I’m supposed to be a genius, so I should be able to figuyre this out. Looks like Greek to me.
ok here is how it works…there are 4 bands on most resistors…look at the resistor and you will see either a silver or gold band at one end…now turn the resistor so that the silver or gold band is to your right…now you will see three bands to your left and the silver or gold band to your right…the first two bands are colored and each color represents a number…the third colored band is the number of "0"s to add to the resistance value…here is the way it is numbered for the color to number chart Black = 0, Brown = 1, Red = 2, Orange = 3, Yellow = 4, Green = 5, Blue = 6, Violet (or purple) = 7, Gray = 8, and White = 9…now look at your resistor again…the first two colors correspond to the number from the list above, the third band equals the number of "0"s to add to the first two numbers corresponding to the above list…so say you have Red, Red, Brown bands on the resistor (don’t pay any attention to the silver or gold band…that’s just the resistors tolerance value either within 5% or 10%…the gold banded ones are the better resistors and that’s all you need to know about the gold or silver band)…ok, where were we?..oh yeah…so you have red, red, brown bands on the resistor …the first band is red so look at the list…red =2 so that’s the first number…a 2…now look at the second band…it also is red and red = 2 so the second number is 2 so now you have 22 and now we are at the third band which is brown…the third band is the number of “0”'s added to the resistor…so from the list, brown = 1 so that’s the number of "0"s to add to the resistor value…which is only 1 (brown) zero…so here we have it …22 and 1 zero added which is 220 so it’s a 220 ohm resistor…it’s as simple as that…chu