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Projects => How Do I? Beginner's Paradise. => Topic started by: chezits on February 20, 2016, 03:15:25 AM

Title: I feel really stupid but what is this?
Post by: chezits on February 20, 2016, 03:15:25 AM
This is my first build and i can figure out what this is. I know its a pot but im not sure what kind
Title: Re: I feel really stupid but what is this?
Post by: flanagan0718 on February 20, 2016, 03:17:08 AM
Looks like a potentiometer to me. 2MB 9mm or 16mm. Solder lug or PCB mount.
Title: Re: I feel really stupid but what is this?
Post by: Zigcat on February 20, 2016, 03:31:03 AM
2 mega ohm linear taper pot.
Title: Re: I feel really stupid but what is this?
Post by: chezits on February 20, 2016, 03:32:44 AM
Quote from: Zigcat on February 20, 2016, 03:31:03 AM
2 mega ohm linear taper pot.
Thanks
Title: Re: I feel really stupid but what is this?
Post by: gordo on February 20, 2016, 05:38:56 AM
Very valid question, not stupid at all!

B=Linear
A=Audio (Logarithmic or Log)
C=Reverse audio
W=whacko (ok, I just made that one up. It's a strange taper most known to tube-screamer tone pots)
Title: Re: I feel really stupid but what is this?
Post by: Zigcat on February 20, 2016, 07:14:55 PM
I'd use a 5mb, though. It has more storage capabilities. :)
Title: Re: I feel really stupid but what is this?
Post by: benlanc on February 24, 2016, 07:20:45 AM
Quote from: gordo on February 20, 2016, 05:38:56 AM
W=whacko (ok, I just made that one up. It's a strange taper most known to tube-screamer tone pots)

W-taper pots generally have a notch at the midway point too. The taper is reverse log to 50%, then log from there to 100% IIRC
Title: Re: I feel really stupid but what is this?
Post by: daleykd on February 24, 2016, 07:06:34 PM
I've had a hard time finding the B2M pots.  I wonder (for cost sake) if a B1M would work instead.
Title: Re: I feel really stupid but what is this?
Post by: m-Kresol on February 24, 2016, 08:27:13 PM
Quote from: daleykd on February 24, 2016, 07:06:34 PM
I've had a hard time finding the B2M pots.  I wonder (for cost sake) if a B1M would work instead.

If you look at the pic in the original post, you'll get your answer  ;D
Title: Re: I feel really stupid but what is this?
Post by: selfdestroyer on February 24, 2016, 09:07:40 PM
Quote from: daleykd on February 24, 2016, 07:06:34 PM
I've had a hard time finding the B2M pots.  I wonder (for cost sake) if a B1M would work instead.

I always get my B2M from SmallBear:
http://smallbear-electronics.mybigcommerce.com/alpha-single-gang-16mm-solder-terms-linear-audio-taper/ (http://smallbear-electronics.mybigcommerce.com/alpha-single-gang-16mm-solder-terms-linear-audio-taper/)

Cody
Title: Re: I feel really stupid but what is this?
Post by: daleykd on March 15, 2016, 01:10:59 PM
Quote from: m-Kresol on February 24, 2016, 08:27:13 PM
Quote from: daleykd on February 24, 2016, 07:06:34 PM
I've had a hard time finding the B2M pots.  I wonder (for cost sake) if a B1M would work instead.

If you look at the pic in the original post, you'll get your answer  ;D
God, I'm an idiot.  Don't mind me.
Title: Re: I feel really stupid but what is this?
Post by: selfdestroyer on March 15, 2016, 05:05:08 PM
Quote from: daleykd on March 15, 2016, 01:10:59 PM
Quote from: m-Kresol on February 24, 2016, 08:27:13 PM
Quote from: daleykd on February 24, 2016, 07:06:34 PM
I've had a hard time finding the B2M pots.  I wonder (for cost sake) if a B1M would work instead.

If you look at the pic in the original post, you'll get your answer  ;D
God, I'm an idiot.  Don't mind me.

I like to blame it on lack of coffee. :]
Title: Re: I feel really stupid but what is this?
Post by: dbp512 on March 21, 2016, 02:57:38 AM
By any chance is this for the analog bit crusher? If it is, a 1 meg pot is fine, perhaps better as I never use more than a third of the rotation with the stock 2M. I know it says as much in the picture, but in my experience the extended range isn't worth the price of shipping the necessary pot.
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