[Boatanchors] 4 or 5 color band carbon resistors

[James Duffer]

>From: "Gary" <xfrmrs at roadrunner.com>
>To: "Yong Surk Lee/HL1FB" 
><yonglee at yonsei.ac.kr>,<boatanchors at mailman.qth.net>
>Subject: Re: [Boatanchors] 4 or 5 color band carbon resistors
>Date: Sat, 12 May 2007 05:28:59 -0400
>
 > Hello
 >    I have a lot of 1/2 watt old carbon resistors. Some of them has 4 
color
bands
 > and some has 5 color bands. I know the 4th color band is the tolerence.
 > what does the 5th one represent? I have an old tube radio made in 1960s.
It uses
 > 4 band carbon resistors. What year did the 5 band ones introduced?
 > YSL
 >
Normally the color code is first band is first digit, 2nd band is second 
digit, third band is the multiplier, fourth band is tolerance, additional 
bands can be quality and/or tempcoefficient.

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