Author Topic: Potentiometer Question  (Read 2255 times)

MullisMan

Potentiometer Question
« on: March 31, 2010, 10:32:49 PM »
I'm going to build an Xotic EP Booster and the potentiometer is a 10K C type on the schematic and in the PDF file for the project, I've seen A log types and B linear types but not a C.  Can anyone shed any light on this?  And can I find it at small bear?
With the fire in my bones.

walker

Re: Potentiometer Question
« Reply #1 on: March 31, 2010, 10:49:01 PM »
A used to be C and B used to be A.  The C became A and A became B.    why?  universal conspiracy to confuse DIY builders.  


Quote
Now, this should be dead easy - a simple code to indicate the resistance and law of a pot should cause no grief to anyone, right?  Wrong!  It wouldn't have been so bad if someone hadn't decided to change it, and even then, it wouldn't have been so bad if there was no overlap between the "old" and "new" "standards" ... I think you can see where this is headed by now.
 
Taper       Old Code    New Code    Alternate
Linear              A                 B     LIN
Log (Audio)        C              A        LOG
Antilog              F                N/A    N/A



taken from this article:  http://sound.westhost.com/pots.htm


another good one while were at it "the secret life of pots":  http://www.geofex.com/Article_Folders/potsecrets/potscret.htm
« Last Edit: March 31, 2010, 10:52:57 PM by walker »

MullisMan

Re: Potentiometer Question
« Reply #2 on: March 31, 2010, 11:14:28 PM »
Thanks so much!
With the fire in my bones.

Dan N

Re: Potentiometer Question
« Reply #3 on: April 01, 2010, 04:45:12 PM »
Nowadays C is reverse audio.

Smallbear do carry some C taper pots.

bassesofdeath

Re: Potentiometer Question
« Reply #4 on: September 09, 2011, 11:26:03 PM »
If a circuit needs a B1M dual gang. Why can't a B1M single be used?

nexekho

Re: Potentiometer Question
« Reply #5 on: September 10, 2011, 05:59:33 AM »
If a circuit needs a B1M dual gang. Why can't a B1M single be used?

Is a dual gang not like two potentiometers of the same value being turned by one knob?
I made the transistor angry.

Pigyboy

Re: Potentiometer Question
« Reply #6 on: September 10, 2011, 08:07:05 AM »
Remember you can use a normal log or A pot backwards to get the same effect as a C. It will just work the opposite way meaning full clockwise is off/counter clockwise on...
And you'll have to admit, I'll be rich as shit
I'll just sit and grin, the money will roll right in....
                                                            - FANG