[sdiy] Analog VU Meter/Simple Attenuator Module

[Andre Majorel]

On 2007-10-23 13:40 -0700, thomas white wrote:

> The analog VU I found has 10-0-10v DC response and
> markings. I have searched long and hard for a
> "centering" bi-polar meter and have found one for
> roughly $35.00. 

Where did you get it from ?

> PS. I also was looking at digital meters available for
> around 20-30$ US on eBay for a build out... but, most
> only take 2-3 measurements per second which would be
> totally cumbersome trying to measure a voltage sweep
> or similar. Does anyone know of a good panel meter
> with a fast sampling rate of around 20 or 30 times per
> second? 

What precision do you want ? The TLN-904 is built on a pair of
LM3914. It is faster than a galvanometer but only precise to
+/-0.5 V

  http://tellun.com/motm/diy/tln904/TLN-904.html

-- 
André Majorel <URL:http://www.teaser.fr/~amajorel/>
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