resistor question

[star882]

I found a resistor with the markings red, violet, green, white(I may have gotten this backwards).
What is the value?
I already tried my ohmmeter, resistance is too high.
The resistor is peach-colored like most resistors.
The body of the resistor is about 1/2 inch long with a 1/8 inch diameter.

 

[lux0]

[No message]

 

[MrAl]

Hello,

Well, a 2.7k resistor would be marked:
red, violet, red.

For red, violet, green, white:
if the 'white' band is really silver, then
your R would really be a 2.7 megohm resistor.
This resistance would look like an inf
value on a meter that only goes up to
2 megohms.

Good luck with your LED circuits,
Al

 

[star882]

The white band is white.
The resistance is higher than 2M(the highest my meter can measure).

 

[lux0]

[No message]

 

[star882]

My LED monitor is made by dell.

 

[lux0]

[No message]

 

[GPS Rider]

Originally posted by star882:
The white band is white.

<font size="2" face="Verdana, Arial">Well, the fourth band can only be gold (5% tolerance), silver (10% tolerance), or missing (20% tolerance). What you are calling white must be representing silver.

GR

 

[MrAl]

Hello,

If the white band is really white and the
digits are read backwards, and it was to
represent a precision resistor, then the
value would be
957 ohms,
which isnt a standard 0.1, .25%, or 0.5%
or any other percent :-)
The closest standards to that value would be
953 ohms and 965 ohms.

Take care,
Al

 

[Vikas Sontakke]

No CPF member should be without it :-)

Javascript Calculator

 

[Pellidon]

1 or 2% is white if I rember correctly

 

[lux0]

Brown is 1%, red is 2%, green is 0.5%.

 

[star882]

If I read it right, it is 2.7M.
If I read it backwards, then it is 950M with a 1% accuracy(I never even heard of a 950M resistor, let alone one with a 1% accuracy).

 

[lux0]

[No message]

 

[MrAl]

Hello,

lux0:
If you had typed an "M" in the first place
i wouldnt have had to reply :-)
Im sure you meant too though right ?

Take care,
Al

 

[Minjin]

Originally posted by Vikas Sontakke:
No CPF member should be without it :-)

Javascript Calculator

<font size="2" face="Verdana, Arial">I need something like this for my Palm! I had to learn all the color codes back in ET school, but as with all knowledge, when you don't use it, you lose it...

I don't do much troubleshooting of stuff that I don't have a schematic for.

Mark

 

[carbonsparky]

4 color bands can mean a 1% by default. Also this may be a inductor but usually they are blue or green in color. I would guess, with out seeing it, that is a 1 watt 95.7K ohm resistor. When it comes to precision resistors there is no such thing as a standard value. Precision resistor values are usually indicated by four numbers the first three are the first three digits of the value and the fourth being the number of zeros to add on. Just like the 5 and 10% resistors use the three color bands. If there is a fith color band it can refer to the precision of the resistor; ie black equals 1%, red equals 2%.

 

[KC2IXE]

Originally posted by star882:
I found a resistor with the markings red, violet, green, white(I may have gotten this backwards).
What is the value?
I already tried my ohmmeter, resistance is too high. ...snip...

<font size="2" face="Verdana, Arial">Sounds like you got it backwards - It's probably a 2% resistor (hense the RED last band) - it would be 980 Meg - too high for most meters

 

[lux0]

if it was read backwards, wouldn't it be a 950 MOhm, 2% resistor?

 

[KC2IXE]

Originally posted by lux0:
if it was read backwards, wouldn't it be a 950 MOhm, 2% resistor?

<font size="2" face="Verdana, Arial">Me bad - yes - Typed it wrong

Black
Brown
Red
Orange
Yellow
Green
Blue
Violet
Green
White

And yes, I know the no longer PC nemonic, as well as the ones for Impediance and Capacitance - ELI the ICE man - E (Voltage) L (Inductance) I (current) - E comes before I in and inductor. I (Current) C (Capacitance) E (EMF - Voltage) I before E in a capacitor.

For those out there - the phase angle in a "Pure circuit" would be 90 deg