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Old 9th September 2006, 01:18 AM   #11
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Join Date: Feb 2004
Location: where the Appalachians rise from the Blue Grass
I'm interested.

Jack, will you have any of the parts available?
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Old 9th September 2006, 02:42 PM   #12
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Location: Llanddewi Brefi, NJ
Ed -- I have a bunch of Nat Semi SMT "rail-rail" opamps -- these should work very well -- but I would imagine that most folks are most comfortable working with "through-hole" devices. For the rectifier to work properly you really need rail-rail devices.

What I will do is configure two boards -- one for surface mount, the other for through-hole devices. This isn't that difficult since my software will change them on the fly.

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Old 10th September 2006, 12:04 PM   #13
ChrioN is offline ChrioN  Sweden
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Keep us updated
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Old 11th September 2006, 01:08 AM   #14
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Location: Argentina
yes, im interested too
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Old 11th September 2006, 01:35 AM   #15
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Location: 12km off the alaska highway in northern BC
count me in as well.
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Old 16th September 2006, 11:51 AM   #16
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Default Wow that sounds cool!

Hi, I read the linked article and I'm interested in a board too if possible, it sounds great!

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Old 23rd September 2006, 03:30 AM   #17
tommak is offline tommak  United States
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Location: Raleigh, NC
Default Will this happen?

Dear "jackinnj",

Are you still planning to build these boards and offer them to diyAudio members? If so, what time frame were you expecting this might happen?

In comparing your schematic in Post #1 above to the schematic in the article, the "bottom" of diode D1 and capacitor C6 from your schematic are connected directly to the negative input of the opamp in the article.


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Old 23rd September 2006, 04:02 PM   #18
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OK -- I made the correction (appears in first post) -- here's a recent purchase on EBay -- was listed in the wrong category -- it's a attenuator with a pair of VU Meters:

Click the image to open in full size.
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Old 23rd September 2006, 04:41 PM   #19
cowanrg is offline cowanrg  United States
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im very interested. im still trying to find a pair of meters and circuits for my cases.

what kind of time frame are we looking at?
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Old 23rd September 2006, 05:12 PM   #20
Nordic is offline Nordic  South Africa
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I'd be interested if you can help me with a method to test VU meter rateings... I have a few sets pirated from miscelaneous pieces of amps and tapedecks...
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