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Old 30th November 2006, 04:43 AM   #1
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Default Audiosector kit: adding a pot

I'm a bit confused about how a pot is actually wired up to the audiosector kit. According to Brian's userguide, the pot's wiper simply goes to "IN" on the board. So do the other resistors (220R, 20K) still remain on the input? This is different to National's schematic which shows just a 10K pot and 1K resistor.

Also, I've got the choice of either a log 10K or a log 50K pot. Which would be a better choice? My inputs will only be computer soundcard, USB DAC, or iPod.

Thanks.
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Old 30th November 2006, 04:53 AM   #2
Nordic is offline Nordic  South Africa
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Someone is going to tell you to use the search function any minute now.

source connects on the side of the pot to which you turn the pot for full volume. middle pin goes to amp, other pin is for input...

10K is fine.
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Old 30th November 2006, 05:15 AM   #3
Bob0513 is offline Bob0513  United States
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audio input goes on to one end, wiper to amp in, other pin to ground. 10k or 50k will both work.
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Old 30th November 2006, 06:56 AM   #4
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The pot connects to IN and SG on the board, don't worry about other components there, they stay where they are.

You can use either of the pots you have, I would probably go with 50K.

Attached is a pot connection diagram.

Don't use a search function, it's a waste of time.
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File Type: jpg pot.jpg (45.1 KB, 719 views)
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Old 30th November 2006, 10:54 AM   #5
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I was expecting some flak about using the search, because having used it I know there are a lot of posts about gainclone pots. Unfortunately I couldn't find a definitive answer to the specific questions I've raised.

Thanks to everyone for your help with this, especially Peter. I'm sure I won't be the only one to benefit from these informative replies.
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Old 30th November 2006, 03:28 PM   #6
CarlosT is offline CarlosT  United States
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I think that it was Peter also that had a tremendous comparo of different pots...I wound up buying some carbon Precision pots based on his work. Thanks, Peter.
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Old 1st December 2006, 03:03 PM   #7
CarlosT is offline CarlosT  United States
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Although the title is not totally fitting, this guide was pretty good

http://www.tocos.com/guideline%20and%20precautions.pdf

So for a simple three-terminal, single pot, Terminal 3 is signal input, Terminal 2 (the wiper) goes to the amp's input and Terminal 1 goes to ground?
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Old 1st December 2006, 03:13 PM   #8
CarlosT is offline CarlosT  United States
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Does Terminal 1 have to go to ground?
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Old 1st December 2006, 03:30 PM   #9
troystg is online now troystg  United States
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Quote:
Originally posted by Peter Daniel
The pot connects to IN and SG on the board, don't worry about other components there, they stay where they are.
........

I hate to ask but what are pins 1 and 5 for? I have the same Noble pot and really do like it but I have always been curious what the extra pins were for.
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Old 1st December 2006, 03:41 PM   #10
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Quote:
Originally posted by CarlosT
Does Terminal 1 have to go to ground?
Yes


Quote:
Originally posted by troystg
I hate to ask but what are pins 1 and 5 for? I have the same Noble pot and really do like it but I have always been curious what the extra pins were for.
On the pots I had those pins were not connected. But maybe in some versions they are used for 'loudness' control.
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