You all must have had a problem while make your projects and searching old pieces of circuits for a particular resistor or a capacitor.

Well , using a multimeter is a good option but  it may not be available to most of us, and using it is a bit complicated and I will be posting it in  my next instructable on it.

Presently, I will tell you the criterion for calculating the resistance and capacitance.(Only in ceramic capacitors as it is mentioned on electrolytic capacitors)


I was making a school project and I needed some resistors and capacitors, as the local electronics shop is about 20km from my house saw I started to look in the old circuit boards I have.

As I didn't have a multimeter so I tried to understand the logic behind the codes.

Which I will be telling you.

<p>I just need to know where I can buy capacitors, resistors etc for my board in my 5000 watt pyle home stereo amp. seems like everywhere I look i get the same answer, we dont sell those. Do i have to buy them on line, this cant be the only option for portland oregon. I only need two or three parts that were blown from moisture, its a brand new unit.. If you know where I can get what i need in my area please contact me. terryleighton@hotmail thanks!</p>
<p>This is how I remember the resistor codes. The values go in rainbow order</p>
<p>Correction ! Yellow is 4, not 5!</p>
<p>Im confused, is this conversion 154 == 0.0015uF the same as the trick they learn here: <a href="http://www.wikihow.com/Read-a-Capacitor" rel="nofollow"> http://www.wikihow.com/Read-a-Capacitor</a></p><p>=because they also teach the letter encoding</p>
<p>I know this is an old thread, but the color code information given here is incorrect. The order of the colors are correct, but black = 0, brown =1, and on down the list in order. White=9 and the resistor color code has no ten. Just setting the record straight.</p>
just trying to understand ... I think there are a few discrepancies <br> <br>under calculating resistance .. is the first band color supposed to be green instead of yellow? <br> <br>is it a supposed to be red band to get 5700 or an orange band to get 57000?
funny story: i once spent an entire night looking through my resisters to find a few 10k ohm resistors, I started at 9 pm and it wasn't until 2 that i realized i was reading the code backwards!
Aha!Thats why I use my multimeter instead of decoding. <br>
Well the picture that you have given in Step one. Is that a circuit board that you have made. If yes i would like to see its schematics.
Well I took it from google just to explain you. <br>You can find it on google images.
Thanks a ton, This will come in handy for me.
i got 1 question to ask can you please tell me what this ceramic capacitor does? <br>i've got a ceramic capacitor it's blue in color in front 471 and 2KV is written what is the meaning of 2KV?? <br>
Well ceramic capacitors like other capacitors store energy.. The only difference is that it uses ceramic material as a dielectric. <br>The 2KV is the voltage rating it means 2000 Volts. <br>For information refer to http://en.wikipedia.org/wiki/Ceramic_capacitor
Very good i also have some problem calculating the capacitance of a ceramic capacitor but it really solves my problem i am not well known to electronics cause i am only 15 yrs old! Sooraj Bhaiya!

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Bio: I like playing football,basketbal ,making circuits and doing science.
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