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posted by [personal profile] bugshaw at 02:11pm on 26/12/2006
Um, it appears that I have forgotten how to read resistor codes. I remember that the colour stripes tell you the resistance (and tolerance), and the colour sequence (black brown red orange yellow green blue violet grey white) but the rest I will have to Google for. Also my eysight is less good than it was as a teenager, and it's hard to see the stripes!

I have made some theremin noises already, but only in my throat as I wailed at the resistors :-)
There are 7 comments on this entry. (Reply.)
 
posted by [identity profile] alex-holden.livejournal.com at 02:31pm on 26/12/2006
You can always cheat and use an ohmmeter to measure them ;)
 
posted by [identity profile] bugshaw.livejournal.com at 02:57pm on 26/12/2006
I have one of those - also a book of colour codes :-)

I might resort to the ohmmeter, it's darned hard to tell the red/orange/yellows apart and the green/blues.
damienw: (xmas)
posted by [personal profile] damienw at 03:28pm on 26/12/2006
Ohmmeter all the way for me, but I'm colour-blind. For theremin building I want an oscilloscope... darn tuning. Which circuit are you using?
 
This circuit:
http://www.siliconchip.com.au/cms/A_103277/article.html

It came in a kit with the parts.

I'm not colour blind, but the different colours have a very similar quality (tone? hue?) so the red and orange and brown and purple look very similar.
I started trying to identify the resistors by writing down the colour codes on a bit of paper. Then I turned the page and found the parts list included colour codes, so I could cross check them. I got around half the colours wrong!! And that's before I try to decode them...
 
Is that not the definition of colour blindness? *some* colours are hard to differentiate if they have the same shade?
 
posted by [identity profile] alexmc.livejournal.com at 01:37am on 27/12/2006
Oooh, I've always wondered abou building a theremin but suspect my skillz are to weak.
 
posted by [identity profile] alexmc.livejournal.com at 03:08am on 27/12/2006
Spellin skillz

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