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Resistor Color Code
08-28-2015, 05:25 PM
Post: #1
Resistor Color Code
Is any program available for the resistors color code?
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08-28-2015, 05:41 PM
Post: #2
RE: Resistor Color Code
Bad
Boys
. . . .

2speed HP41CX,int2XMEM+ZEN, HPIL+DEVEL, HPIL+X/IO, I/R, 82143, 82163, 82162 -25,35,45,55,65,67,70,80
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08-28-2015, 07:08 PM
Post: #3
RE: Resistor Color Code
(08-28-2015 05:41 PM)TASP Wrote:  Bad
Boys
. . . .

Not sure if a program is necessary. I've had this memorized for decades and seldom needed it since the 80's.

Black
Brown
Red
Orange
Yellow
Green
Blue
Violet
Gray
White
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09-06-2015, 06:49 PM
Post: #4
RE: Resistor Color Code
(08-28-2015 05:25 PM)as5513482 Wrote:  Is any program available for the resistors color code?

When I told my wife that if I see colors I see numbers, she said that I am crazy , so I gave it up.

I'd Rather be a King in Hell than a Pauper in Paradise.
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09-06-2015, 07:07 PM
Post: #5
RE: Resistor Color Code
(09-06-2015 06:49 PM)TechAlex Wrote:  
(08-28-2015 05:25 PM)as5513482 Wrote:  Is any program available for the resistors color code?

When I told my wife that if I see colors I see numbers, she said that I am crazy , so I gave it up.

Synesthesia?
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09-07-2015, 02:50 AM
Post: #6
RE: Resistor Color Code
After thinking about this for a while, possibly at one time I had an HP41 keyboard overlay with the appropriate colors noted in flecks of electrical tape on the top rows. And there would have been a program with User mode key assignments that went along with it.

Considering my vague memory of it, I'm thinking I might have written the code during sparky school for a classmate to use in labs. If I had used it quite a bit I think I would have a clearer recollection.

My predilection to write 'bloatware' would make me think the program probably accepted gold and silver too and computed and displayed ranges of resistance possible for the colors.

I do remember using the colored electrical tape, an oatmeal container, and some conduit to make a 'gag' giant 10,000 watt 47K resistor for one of the instructors . . .


Wink

2speed HP41CX,int2XMEM+ZEN, HPIL+DEVEL, HPIL+X/IO, I/R, 82143, 82163, 82162 -25,35,45,55,65,67,70,80
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11-19-2015, 01:22 PM
Post: #7
On a slightly different view of color bands (from XKCD)
(09-06-2015 06:49 PM)TechAlex Wrote:  When I told my wife that if I see colors I see numbers, she said that I am crazy , so I gave it up.

http://xkcd.com/1604/
[Image: snakes.png]
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11-19-2015, 03:46 PM
Post: #8
RE: Resistor Color Code
I use the "program" in the attached picture.

It never fails :-)

[Image: IMG_20151119_163814.jpg]
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11-19-2015, 04:27 PM (This post was last modified: 11-19-2015 04:28 PM by DrD.)
Post: #9
RE: Resistor Color Code
Etienne Victoria:

There have been updates to your "program." (For 5 and 6 band color codes).
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11-20-2015, 12:51 PM (This post was last modified: 11-20-2015 01:38 PM by Vtile.)
Post: #10
RE: Resistor Color Code
(08-28-2015 05:25 PM)as5513482 Wrote:  Is any program available for the resistors color code?

I don't know. Also I don't know about kneejerk reactions of others, but I would suggest you program one for your own. It is one of the most simplistic programs to do, where you just replace the color with a number and have 3 .. 5 meanings depending the place the color is. It doesn't need to be pretty, but fast to use.

Here is the one of the most advanced resistor programs ever invented. http://tower-freshmanphysics.wikispaces....de-all.gif You can use it to make your own for prime. Later you can extend the program to calculate series and parallel resistors based on E-series etc.

Only that it is much quicker to read them naturally than using converter, but I assume resistor color coding is losing its importance these days when everything starts to be surface mounted circuitry. ?

Later on one should note that the resistor with only resistance is the ideal (=school book) case, real world resistors have also reactance (resistor have inner capacitance/capacitor and inductance/coil in parallel depending the construction of it) making it reactive and introducing a frequency dependency for it. In other words calculations are made in complex domain when frequency dependancy is critical. Hopefully I translated the "tances" correctly.
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11-20-2015, 02:09 PM
Post: #11
RE: Resistor Color Code
(11-19-2015 04:27 PM)DrD Wrote:  Etienne Victoria:

There have been updates to your "program." (For 5 and 6 band color codes).

You're right !! This is outright unacceptable !

I will demand a firmware update to the manufacturer ASAP :-)

Cheers

Etienne
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