[sdiy] Selecting Components

[Ian Fritz]

At 10:20 AM 9/6/2006, R. D. Davis wrote:

>It depends upon how much power the resistor needs to dissipate... look
>to good old Ohm's law for the answer: p = i x e.  If you're buying in
>quantity, buy 1/4W ones, if 1/8W is needed, the 1/4W ones will suffice
>unless there are space limitations.


Hmmm ... Look at it this way:  Consider power as P = V^2/R.  A typical 
synth situation might be something like 10 V across 10 kOhm.  This is 0.01 
W.  Even 10 V across 1 kOhm is only 0.1 W.  So 1/8 W is fine for almost 
everything!

   Ian