Readily Visible wrote:
I have a resistor in an analog VOM meter that I suspect is bad. It is
exclusive to the 1x ohm scale, which is now reading as if it were the
1000x ohm scale.

The color bands are as follows:

Red 2
Grey 8
Violet 7
Gold 5%
Red ? (I never learned this)


The trick I learned was bad(black 0 boys (brown 1), rape (red 2) our (orange 3),
young (yellow 4), girls (green 5), but (blue 6), Violet (7) gives (grey 8),
willingly (white 9).

For the tolerance bands get (gold 5%) some (silver 10%), now (none 20%).

This was long before political correctness existed and the few women in
engineering had to "just live with it".



There is a larger space between the gold and red bands than between any
other adjacent bands.

So that's 28 followed by 7 zeros, or 280,000,000.


Here's a good description

http://wiki.xtronics.com/index.php/Resistor_Codes

and here's a website that decodes them for you.

http://www.dannyg.com/examples/res2/resistor.htm

Poor me, I had to use a little cardboard thing. :-)


I read this as 280,000,000 ohms with 5% tolerance and 50 ppm temperature
coefficient, but when I use a digital meter to read the resistance it
comes in at 270,000 ohms.

I noticed a small hairline crack in this resistor and when I poked it
with a pin a small flake of the outer coating fell off.

280,000,000 ohms seems like an awfully large value to me. Could this be
a correct reading?

Either you meter is way off, you are reading it wrongly, or the resistor
has really changed with age. 280m ohms is just about right.

Geoff.

--
Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM