[Boatanchors] Old resistor values

[Dave Roscoe]

Gary:

Have you ever been tested for color-blindness?

When I entered the USN 52 years ago, they tested me for aptitude , and I
scored high in Electronics. They assigned me to  Electronics Technician
School , where I recieved great training for the Navy and for my Life's
work.
Upon entering school, I almost failed a color test , and but for a generous
and forgiving test giver, I would have probably become a Bosun's Mate.

I still have dificulty with some colors, but always rely on the good old
ohmmeter !

Check with your eye doctor. Sometimes you will never notice that you have
that problem.

73  de Dave W1DWZ


----- Original Message ----- 
From: "Garey Barrell" <k4oah at mindspring.com>
To: <WA5CAB at cs.com>
Cc: <boatanchors at mailman.qth.net>
Sent: Tuesday, December 14, 2004 9:50 PM
Subject: Re: [Boatanchors] Old resistor values


> Robert -
>
> In my experience, the color bands on "modern" resistors are just for
> decoration!  The colors are NOT true, and it is particularly difficult
> to tell the difference between black, brown and red.   Even with bright,
> color accurate lighting and high magnification.  I have given up and
> just measure them with an ohmmeter.
>
> 73, Garey - K4OAH
> Atlanta
>
> WA5CAB at cs.com wrote:
>
> >Group,
> >
> >I've been meaning to ask this for a week.  Most of the newer production
> >carbon film (and/or maybe metal film) resistors that I've seen have
dumbbell shape
> >(like the 20's and 30's vintage carbon composition ones except that those
were
> >radial lead), micron sized lead wire, and of those that still have
standard
> >color bands, the colors are often pastel rather than true, and the band
width
> >is typically so narrow that at 61 and wearing tri-focals I often have
trouble
> >reading them.  Does anyone make square ended resistors with decent width
color
> >bands in the correct colors?  So that valid repairs aren't automatically
> >suspected by the next person to look at the set of being modifications?
> >
> >Robert Downs - Houston
> ><http://www.wa5cab.com> (Web Store)
> ><wa5cab at cs.com> (Primary email)
> ><wa5cab at houston.rr.com> (Backup email)
> >
> >
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