by atalwar » Mon Nov 17, 2008 6:06 pm
Jounil,
You can get rid of scratchiness in pots mostly by using a good contact lubricant or contact cleaner. a drop in the pot goes good for about 6-9 months in my conditions which are very dusty.
250k load pups a bit, 500k loads em less, 1 meg hardly loads them. as you increase pot value brightness increases.
500k usually best choice to play with as you can just solder a resistor (500k) in parallel to the lugs and have it work like a 250k pot or different values as per liking.
Linear pots and log(tapered pots) differ in their operation (i.e their response curve).
Linear as the name suggests, the pots surface is even all across so it exhibits same resistance when the knob is turned i.e halfway is at approx 50% of pots rotation.
in log tapered pots,you have higher concentration one of the either sides of the pot. (log or antilog(rev)) so the pots halfway can be around 65-75 or opposite percent of rotation. (log pots relate to how humans perceive loudness of sound in db's)
true accurate log pots are hard to manufacture and can be quite costly. thus for a good log operation, many people use for "volume" a linear pot with a 1/5 /1/4th value resistor bet'n the lug pair which can convert the pot into a quite accurate log (exponentiall) pot
Hope it Helps.
~Amit
Last edited by
atalwar on Mon Nov 17, 2008 6:09 pm, edited 1 time in total.
I Am A Man of Few Words Ironically Understandable by the Select Few, hence more often than not I have to Come out of my Manhood to do the obvious. Now Ain't it a cruel world?
I've got a standard P+J pickup set on my bass.