Help identifying resistor value

gottlieb · 21st June 2009, 03:53 PM

I need some help identifying the value of this resistor, the schematic says it's a 47K, so it should be in that ballpark...

http://img44.imageshack.us/img44/9330/resistor.jpg

Thank you.

mjf · 21st June 2009, 04:36 PM

hello.
a 47k has yellow violet orange rings.
a 4,7k has yellow violet red rings........
perhaps you can do some tests with a multimeter...........
greetings...........

HollowState · 21st June 2009, 04:38 PM

The picture you supplied is very poor quality. However, I copied it and was able to enlarge it and adjust the brightness level. The colors do look like yellow (4), violet (7), orange (3)(zeros) and gold (5%). So, 47,000 ohms and looks like a film resistor of about 2 watts compared to the small one.

richwalters · 21st June 2009, 04:40 PM

91K..... compare colours with pic ?

richy

llwhtt · 21st June 2009, 05:52 PM

What amp is it? Looks British to me, not Marshall, Hiwatt, Vox, or Laney. Maybe we can find a schematic and then we'll know what the resistor value is if you can't measure it.

Craig

ChrisA · 21st June 2009, 07:25 PM

Quote:

Originally posted by gottlieb
[B]I need some help identifying the value of this resistor

Sometimes even if you have the resistor in you hand you can't tell if a band is orange or red. In those cases simply use a meter a measure it.

You will have to un-solder one end or if you are lazy cut one lead. Not to bad to waste a resistor in order to measure it. They are less than five cents each.

In a photo, no one can be sure of the color and we certainly can measure it.

21st June 2009, 03:53 PM	#1
gottlieb diyAudio Member Join Date: May 2009	Help identifying resistor value I need some help identifying the value of this resistor, the schematic says it's a 47K, so it should be in that ballpark... http://img44.imageshack.us/img44/9330/resistor.jpg Thank you.

21st June 2009, 04:38 PM	#3
HollowState diyAudio Member Join Date: Aug 2006 Location: Taxland, New Jersey	The picture you supplied is very poor quality. However, I copied it and was able to enlarge it and adjust the brightness level. The colors do look like yellow (4), violet (7), orange (3)(zeros) and gold (5%). So, 47,000 ohms and looks like a film resistor of about 2 watts compared to the small one. __________________ "The supercomputer is technologically impossible. It would take all of the water that flows over Niagara Falls to cool the heat generated by the number of vacuum tubes required." ~ Professor of Electrical Engineering, New York University

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21st June 2009, 04:36 PM	#2
mjf diyAudio Member Join Date: Jan 2009 Location: upper austria/near linz	hello. a 47k has yellow violet orange rings. a 4,7k has yellow violet red rings........ perhaps you can do some tests with a multimeter........... greetings...........

21st June 2009, 05:52 PM	#5
llwhtt diyAudio Member Join Date: Jun 2008	What amp is it? Looks British to me, not Marshall, Hiwatt, Vox, or Laney. Maybe we can find a schematic and then we'll know what the resistor value is if you can't measure it. Craig

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