Wrong resistors in kit? [Resolved]

[Jamus]

I'm on page 67 in the Eros manual and it's calling for 470k ohm resistors. I have two left but they don't appear to be 470 ohm. They are green-purple-black-orange-brown which according to a calculator I found are 570k ohm. Should these be used here or do I need to order replacements?
Thanks!
Jamus

 

[Doc B]

Why don't you measure them with your meter and see what value they really are?

 

[Jamus]

LOL! That would be the obvious way to check to resistance, wouldn't it!? I guess my brain was fried after a long build session. They are indeed 470k ohms. So I'm a little slow AND color blind! Good reminder to use the tools you have and not rush to google!
Thanks,
Jamus

 

[Doc B]

There is, I believe, an answer other than you being colorblind. I have a little side business redyeing motorcycle leathers. My specialty is adding hi visibility colors to the original color scheme. Thus I do a lot of hi viz yellow and red. For those of you who FB, here is a link to pics of my own suit -

https://www.facebook.com/trydyeing/photos/ms.c.eJw1yskNwAAIA8GOIow5~_28sCoTnaBeuBmk6muH9YJ1rX0NsbPUbggqh9Hl~;3s~;pWtdNx5lrZXy~;I8695gsROxyn.bps.a.152410931860326.1073741829.109436239491129/152410935193659/?type=3&theater

for more -https://www.facebook.com/trydyeing/

"Redyeing" is a misnomer, leather is mostly painted with a special acrylic paint that is very flexible these days. To lay some neon yellow on a suit that is dark I have to lay on several coats of white first, as yellow paint (the color of a "4" stripe) is often translucent and will mix with the background color. Red does this too, just not to the same degree. I'm guessing this is a resistor with a blue body. On a blue resistor yellow striping paint can look quite green (color of a '5" stripe).

 

[JeffYoung]

The other clue is that you won't normally find a 570 ohm resistor; the E-12 series goes 470, 560, 680, 820, 1K.


(Note also that it ends on a power of 10, so the series is the same at 4.7K, 5.6K, 6.8K, etc., which is handy.)


For more info, see: https://en.wikipedia.org/wiki/E-series_of_preferred_numbers.


Cheers,
Jeff.

 

[2wo]

Redyeing motocycle leathers, now there's a nich market for you.

I like high vis, I have an Airostich Darrian, I think it saved my life once...John