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100R trimpots - best brand for audio
100R trimpots - best brand for audio
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Old 18th July 2010, 02:34 PM   #1
lordearl is offline lordearl  Australia
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Default 100R trimpots - best brand for audio

These are to be used on a discrete buffer for nulling DC offset, any suggestions as to which brands are reliable?
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Old 18th July 2010, 05:13 PM   #2
bob91343 is offline bob91343  United States
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It's hard to find bad parts these days. Anything that will fit will do the job.
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Old 18th July 2010, 10:52 PM   #3
nigelwright7557 is offline nigelwright7557  United Kingdom
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I always use enclosed type to keep the dust out.
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Old 19th July 2010, 12:17 AM   #4
tiefbassuebertr is offline tiefbassuebertr  Germany
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Quote:
Originally Posted by bob91343 View Post
It's hard to find bad parts these days. Anything that will fit will do the job.
I would rather say "It's hard to find good parts in these days"

Quote:
Originally Posted by lordearl View Post
These are to be used on a discrete buffer for nulling DC offset, any suggestions as to which brands are reliable?
the follow versions offers good quality:
http://www.bourns.com/ProductLine.as...litary_quality
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Old 19th July 2010, 01:28 AM   #5
AKSA is offline AKSA  Australia
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Bourns 3296W, three wire, in line, vertical 25T adjust.

Don't use the Chinese knockoffs, often they do not engage with the adusting screw.

Hugh
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Old 19th July 2010, 03:06 AM   #6
Sunsun22 is offline Sunsun22  Hong Kong
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If you have spare money, use any of these

http://www.texascomponents.com/pdf/vpot.pdf

I changed to use (10R) 1260 on my Erno's 320 phono preamp and it produces more details VS the stock supply which is already a good one from Japan. Adjusting the zero offset is a piece of cake since the voltage does not go up and down with small turn. The price could be a concern because it is over $30 each but you can also consider a cheaper alternative such as 1280 if your PCB allows.
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Old 19th July 2010, 03:18 AM   #7
mach1 is offline mach1  Australia
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Bourns cermet 10 turn are well made, reliable and reasonably priced.
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Old 19th July 2010, 04:17 AM   #8
lordearl is offline lordearl  Australia
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Excellent, thanks! Might try the Bourns as they seem good value for money.
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Old 19th July 2010, 07:56 AM   #9
tiefbassuebertr is offline tiefbassuebertr  Germany
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Quote:
Originally Posted by Sunsun22 View Post
If you have spare money, use any of these
http://www.texascomponents.com/pdf/vpot.pdf
Thank you for this advice. Also a wide range of their other devices about
http://www.texascomponents.com/
are of interest, e. g.
http://www.texascomponents.com/pdf/tx221.pdf
and
http://www.texascomponents.com/pdf/zseries.pdf

Last edited by tiefbassuebertr; 19th July 2010 at 08:01 AM.
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Old 19th July 2010, 09:06 AM   #10
lordearl is offline lordearl  Australia
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Sheesh, looks like it is possible to spend some big bucks on small components!

While we're on that topic, what is an audio grade DPDT switch to use for toggling between two inputs?
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