Alps "blue velvet" from mouser?

djembe · 18th November 2004, 07:14 AM

Most people don't list mouser as a source for the blue alps pots, but doing a little searching (they are listed incorrectly and not in the catalog) I have found this:

RK27

Has anyone purchased these from mouser? They are listed for $10 USD - seems cheap. I think its a 100k - can't tell if its log or linear. Any thoughts?

Thanks,
Seth

paulb · 5th September 2006, 06:16 PM

I bought a couple of these. Taper is best described as follows:
From
http://www.rane.com/par-p.html#MN_taper

MN taper (aka balance pot) Special taper developed for home stereo "Balance" controls. Consists of two sections (one for each channel) operating opposite each other. Exactly one-half of each section is a zero resistance surface (i.e., solid-copper or equivalent), the next 50% of travel is linear taper. Therefore for one channel rotating the slider through the first 50% of travel does not change the level at all, while the other channel is reduce from full to zero, and vice versa, with the middle position (usually featuring a center-detent) always passing full signal to each channel.

Not what I was expecting; Alps part numbers are confusing at best. Some future preamp project, maybe...

paulb · 5th September 2006, 06:47 PM

Actually, it would work as a 4-channel balance control, because it has two sections and only one section is needed for stereo.

paulb · 6th September 2006, 01:43 PM

Scratch that, one section per channel is required. Sorry if I misinformed anyone.

18th November 2004, 07:14 AM	#1
djembe diyAudio Member Join Date: Nov 2004 Location: USA - Ohio	Alps "blue velvet" from mouser? Most people don't list mouser as a source for the blue alps pots, but doing a little searching (they are listed incorrectly and not in the catalog) I have found this: RK27 Has anyone purchased these from mouser? They are listed for $10 USD - seems cheap. I think its a 100k - can't tell if its log or linear. Any thoughts? Thanks, Seth

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5th September 2006, 06:16 PM	#2
paulb diyAudio Member Join Date: Jun 2001 Location: Calgary	I bought a couple of these. Taper is best described as follows: From http://www.rane.com/par-p.html#MN_taper MN taper (aka balance pot) Special taper developed for home stereo "Balance" controls. Consists of two sections (one for each channel) operating opposite each other. Exactly one-half of each section is a zero resistance surface (i.e., solid-copper or equivalent), the next 50% of travel is linear taper. Therefore for one channel rotating the slider through the first 50% of travel does not change the level at all, while the other channel is reduce from full to zero, and vice versa, with the middle position (usually featuring a center-detent) always passing full signal to each channel. Not what I was expecting; Alps part numbers are confusing at best. Some future preamp project, maybe...

5th September 2006, 06:47 PM	#3
paulb diyAudio Member Join Date: Jun 2001 Location: Calgary	Actually, it would work as a 4-channel balance control, because it has two sections and only one section is needed for stereo.

6th September 2006, 01:43 PM	#4
paulb diyAudio Member Join Date: Jun 2001 Location: Calgary	Scratch that, one section per channel is required. Sorry if I misinformed anyone.

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