On Tue, 22 Feb 2011 11:28 -0500, "Olin Lathrop" wrote:

> Why do you think you need to profile the values?  You said it was a speed
> control for a blender, if I remember right.  Are you thinking this might
> be
> a audio taper pot of something?  If so, you're overthinking this.  Audio
> taper pots are for volume controls, and are getting scarce nowadays
> anyway.
> It will be a linear taper pot, probably the cheapest crappiest pot the
> blender company could stick in there to not fail before the warranty

I doubt very much that the pot is linear. It is likely in a diac+triac
circuit, similar to a lamp dimmer. None of those use standard taper
pots, the resistance profile is special.

Blenders, like dimmers, have pretty much one way of interacting with
their users - the knob. The correct response of that one part has a huge
effect on the user experience, and the manufacturer would spend enough
time to get it right. The OP is trying to get it right too.

Bob

--=20
http://www.fastmail.fm - IMAP accessible web-mail

--=20
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.