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Old 12th March 2010, 07:34 PM   #1
ch33ta is offline ch33ta  Croatia
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Question Colvern LTD wirewound...

Hi,
I'm planing to finish my DAC once and for all, so I need a potentiometer...
Just got a pair of Colvern LTD Wirewound potentiometers (google doesn't help too much) so my question is, how much are they worth and how do they compare to something like blue Alps???
Considering they are wirewound is it smart putting them on the line level, or should I rather go for stepped attenuator??

And of course pics:
Click the image to open in full size.
Click the image to open in full size.


Thanks
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Old 26th December 2010, 08:06 AM   #2
a333bt is offline a333bt  Slovenia
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Quote:
Originally Posted by ch33ta View Post
Hi,
I'm planing to finish my DAC once and for all, so I need a potentiometer...
Just got a pair of Colvern LTD Wirewound potentiometers (google doesn't help too much) so my question is, how much are they worth and how do they compare to something like blue Alps???
Considering they are wirewound is it smart putting them on the line level, or should I rather go for stepped attenuator??

And of course pics:
Click the image to open in full size.
Click the image to open in full size.


Thanks
Hi,
where did you get potentiometer?
I have much better sonic results with wirewound potentiometers than Blue Alps.
Might be better than stepped attenuator.

Best regards,
Bostjan
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Old 26th December 2010, 09:27 AM   #3
ch33ta is offline ch33ta  Croatia
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Quote:
Originally Posted by a333bt View Post
Hi,
where did you get potentiometer?
I have much better sonic results with wirewound potentiometers than Blue Alps.
Might be better than stepped attenuator.

Best regards,
Bostjan
Thank you for your reply.

A friend of mine dug up "something" from his basement, not sure what it is, only thing that says on it was Ferrograph. From the looks of it, it's was some kind of function generator???
Disassembled it for the parts...

Luckily I haven't finished my DAC yet, so I'll give it a try with that potentiometer for starters.. I got a Blue Alps too (didn't like it on my headamp), so I'll have something to compare...
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Old 26th December 2010, 04:02 PM   #4
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Most Colvern pots were linear, not logarithmic so check before you use them as a level control. They are good pots except from a vibration stand point, I once carried a very heavy Gaumont Kallee Fluttermeter up four flights of stairs only to find it didn`t work. Back at base I discovered the Covern HT pot had fallen apart after one too many car journeys.

Barry
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Old 26th December 2010, 04:27 PM   #5
ch33ta is offline ch33ta  Croatia
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Quote:
Originally Posted by barrymagrec View Post
Most Colvern pots were linear, not logarithmic so check before you use them as a level control. They are good pots except from a vibration stand point, I once carried a very heavy Gaumont Kallee Fluttermeter up four flights of stairs only to find it didn`t work. Back at base I discovered the Covern HT pot had fallen apart after one too many car journeys.

Barry
Thanks for the info, I forgot to check, unfortunately it's linear (
I think I'll keep the signal path clear, no pots - straight to the amp input...

Considering it's a USB DAC, I'll be able to control the volume on the PC anyway...
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