embarassing newbie question

[1878]

I've got a couple of schems from the 'effector 13 abandoned circuits archive' and they have capacitors which read '503' or '104' etc. I remember reading somewhere that the value is the first number then how many zeros or something like that !?!? Can anyone shed some light on how to read them properly.

Thanks in advance.

[frequencycentral]

104 is 0.1uf

503 is 0.05uf

......so......

103 is 0.01uf
102 is 0.001uf
101 is 0.0001uf


This chart converts uf to nf to pf: http://www.justradios.com/uFnFpF.html

[petemoore]

  No it's not, it is asking for the code conversion.
You can probably find it by googling and sorting through the capacitor converstion charts too.
103 is 0.01uf
102 is 0.001uf
101 is 0.0001uf 
  Notice that as the third relevant digit in these examples [the most important one] designates by power of 10x.
  This 10x interval can be seen represented by the values in the right column, each time the decimal point moves < one place.
  Also can be seen in the left side, as the third relevant digit in each cap code being 1 higher.
  102 is 10x larger than 101.
  103 is 10x larger than 102.
  ...So...with a 2 as the third relevant digit [using the 102 as example] it's going to look like this:   x.xxsomething, put the two digits in where the third relevant digit says to start...ie these numbers will appear as themselves, and the third relevant digit is most important because it places the decimal point.

[1878]

http://www.electronics2000.co.uk/calc/capacitor-code-calculator.php

Makes it a bit easier...

[lazerphea]

I use this chart for the capacitors' codes or values conversion:
http://www.turretboards.com/capacitor_conversion_chart.htm