SMD 1 percent resistor markings - aide memoire?

N

N_Cook

Guest
Confronted by resistor marking 75B translates as 5K9, anyone have an
approximate ie 10 percent conversion technique?
to avoid table lookup, eg
http://talkingelectronics.com/projects/ResistorsMadeEasy/SMD-Resistors-EIA-M
arkings.html
 
N_Cook <diverse@tcp.co.uk> wrote in message
news:ifsnqf$f3i$1@news.eternal-september.org...
Confronted by resistor marking 75B translates as 5K9, anyone have an
approximate ie 10 percent conversion technique?
to avoid table lookup, eg

http://talkingelectronics.com/projects/ResistorsMadeEasy/SMD-Resistors-EIA-M
arkings.html
add 100 to the 0. ones
100 up to 800 multiply number by 7
add 100 to 8. and 9.
(I always confuse grey and white designations anyway)

A suffix =x1 ..... E= x10000 is straightforward
S for (S)ilver /100
R for o(R) for gold for /10
for the multipliers is the best I could come up with
 
for
add 100 to 8. and 9.

read
add 100 to 8. and 9. ones after multiplying by 7
 
On Mon, 3 Jan 2011 14:49:59 -0000, "N_Cook" <diverse@tcp.co.uk> put
finger to keyboard and composed:

Confronted by resistor marking 75B translates as 5K9, anyone have an
approximate ie 10 percent conversion technique?
to avoid table lookup, eg
http://talkingelectronics.com/projects/ResistorsMadeEasy/SMD-Resistors-EIA-Markings.html
How about ...

100 x 10^(nn / 100)

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.
 
Franc Zabkar <fzabkar@iinternode.on.net> wrote in message
news:et37i6thkakacbnbaub5c155hvtqa4nii7@4ax.com...
On Mon, 3 Jan 2011 14:49:59 -0000, "N_Cook" <diverse@tcp.co.uk> put
finger to keyboard and composed:

Confronted by resistor marking 75B translates as 5K9, anyone have an
approximate ie 10 percent conversion technique?
to avoid table lookup, eg

http://talkingelectronics.com/projects/ResistorsMadeEasy/SMD-Resistors-EIA-
Markings.html

How about ...

100 x 10^(nn / 100)

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.

I don't have a brain the size of a planet, mentally multiplying and adding
integres
is about my limit.
 
On Wed, 5 Jan 2011 08:26:29 -0000, "N_Cook" <diverse@tcp.co.uk> put
finger to keyboard and composed:

Franc Zabkar <fzabkar@iinternode.on.net> wrote in message
news:et37i6thkakacbnbaub5c155hvtqa4nii7@4ax.com...
On Mon, 3 Jan 2011 14:49:59 -0000, "N_Cook" <diverse@tcp.co.uk> put
finger to keyboard and composed:

Confronted by resistor marking 75B translates as 5K9, anyone have an
approximate ie 10 percent conversion technique?
to avoid table lookup, eg

http://talkingelectronics.com/projects/ResistorsMadeEasy/SMD-Resistors-EIA-
Markings.html

How about ...

100 x 10^(nn / 100)

- Franc Zabkar


I don't have a brain the size of a planet, mentally multiplying and adding
integres
is about my limit.
I would think that most people would have a calculator handy in their
workshop. Alternatively, why not just print out the chart, laminate
it, and hang it on your wall?

- Franc Zabkar
--
Please remove one 'i' from my address when replying by email.
 
Franc Zabkar wrote:
N_Cook wrote:

?I don't have a brain the size of a planet, mentally multiplying and adding
?integers is about my limit.

I would think that most people would have a calculator handy in their
workshop. Alternatively, why not just print out the chart, laminate
it, and hang it on your wall?

Then he would have one less thing to complain about. ;-)


--
What are you looking for, all the way down here?
 

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