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Author
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Topic: Difference between A250k and B250k Pot??
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Kenn Geiger
Member From: Salem, Oregon, USA
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posted 08 September 2006 03:25 PM
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I am replacing the pots on my lap steel. The Volume pot is Mighty Mite (MM)A250K and the tone pot is a MM B250K. The local music store only carries the A250k is there a difference? |
Bill Hatcher
Member From: Atlanta Ga. USA
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posted 08 September 2006 04:59 PM
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Don't exactly know what A or B means on the pots, but if there is a difference, it might just be in the taper. |
Jon Light
Member From: Brooklyn, NY
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posted 08 September 2006 05:07 PM
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Yes, the taper--pretty sure one is linear, the other is log (audio). I forget which is which.
The result of using the wrong one is that you will have all the action at one end--beginning or end--of the rotation. IOW, for instance---all the volume (or tone) change will occur from 1-3. Then nothing much more from 4-10. No other harm done. |
Donny Hinson
Member From: Balto., Md. U.S.A.
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posted 08 September 2006 05:14 PM
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The "A" is an audio taper pot, used for volume controls. The "B" is a linear taper pot, usually used for tone controls. Either will substitute in a pinch for the other, with a somewhat different "action" when the knobs are turned. In other words, you'll have the same tone and volume from your guitar, but it may appear to be at different knob settings, or be more "touchy" in the adjustment. |
Kenn Geiger
Member From: Salem, Oregon, USA
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posted 10 September 2006 04:53 PM
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Now I know that I need both an A and a B pot. And why - Love it when I learn why. thank you for your inputs - they were greatly appreciated.To Moderator - I have my answer, please close |
Mike Fried
Member From: Nashville, TN, USA
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posted 13 September 2006 09:24 PM
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Actually Kenn, you don't need a type B pot for your tone control unless you're using it in your playing and need to keep the same "feel". It will sound exactly the same as a type A pot at either end of its rotation.[This message was edited by Mike Fried on 13 September 2006 at 09:24 PM.] |
Jim Sliff
Member From: Hermosa Beach California, USA
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posted 14 September 2006 04:59 AM
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Almost all guitars and amps made use type A polts. Linear pots are used for tone controls on some high-end audio equipment - and as said, it's a different "feel" to the sweep, that's all. Either end is still the same. Most guitar techs buy 50k, 100k, 250k, 500k, and 1 meg pots in bulk - and what they end up with are type A pots. |
basilh
Member From: United Kingdom
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posted 19 September 2006 01:28 AM
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For the 'kikala Hawai`i' pundits out there, If you use a 'B' type pot, the Violin effect (Done with your pinky) is so much easier to execute.
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