To: | <tentec@contesting.com> |
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Subject: | [TenTec] Re: OMNI-6 volume control |
From: | geraldj@isunet.net (Dr. Gerald N. Johnson, electrical engineer) |
Date: | Wed, 21 Nov 2001 19:21:55 -0600 |
You can make a linear pot very nearly logarithmic by loading it with a resistor. Connect a resistor with value between 1/2 and 1 times the resistance of the pot from common to wiper. The lower value will make it more logarithmic. That resistor also will move the working area away from a worn place on an old pot. Cramolin makes a product especially for pots that is less destructive to the pot than their Deoxit product for switch contacts. 73, Jerry, K0CQ -- Entire content copyright Dr. Gerald N. Johnson. Reproduction by permission only. |
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