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Old 31st July 2006, 03:02 PM   #1
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Default GB -- "VU Meter Amplifier" PCB

I am thinking to implement this VU Amplifier circuit, have PCB's made -- L1 and C2 adjust the Attack and Delay (and can be changed as needed.) The circuit is from a design by Jon Munson in EDN in 2005, and I have simmed it with good results. Probably around $5 or $6 for a 2-channel board using through-hole devices:

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Old 14th August 2006, 06:02 AM   #2
AJT is offline AJT  Philippines
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will that include the meter movements too? i am interested.
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Old 14th August 2006, 06:10 AM   #3
rpapps is offline rpapps  Antarctica
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Quote:
Originally posted by Tony
will that include the meter movements too? i am interested.
2 channel Board + components + meter movement for $6.
You are without doubt an optimist.

Cheers
Rob
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Old 14th August 2006, 06:14 AM   #4
AJT is offline AJT  Philippines
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Quote:
Originally posted by rpapps


2 channel Board + components + meter movement for $6.
You are certainly an optimist.

Cheers
Rob
that's not what i have in mind, i know that meter movements cost more than $6, i was wondering if we can have the meter movement also together with the boards...i hope i made mysself clear this time...


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Old 14th August 2006, 12:42 PM   #5
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Quote:
Originally posted by rpapps


2 channel Board + components + meter movement for $6.
You are without doubt an optimist.

Cheers
Rob
As we say in the States "Read the prospectus carefully before you invest". I typed PCB.

At any rate, I have sold many hundreds of amplifier PCB's -- if I can panelize the boards and cut them here in my shop the price will be lower.

I also thinking of adding a simple logarithmic converter so that you don't have to screw around with the meter face.
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Old 18th August 2006, 06:36 AM   #6
ChrioN is offline ChrioN  Sweden
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This could definitely be interresting. I could sure need a bunch
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Old 21st August 2006, 04:00 PM   #7
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I am interested.
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A real amateur enthusiast!
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Old 22nd August 2006, 03:59 PM   #8
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I'm interested too
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Old 8th September 2006, 09:39 PM   #9
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Default I could also be interested in boards

Hello jackinnj

Maybe you will find further informations to your VU-project here:
http://www.ethanwiner.com/meters.html

Also, one of the finest VU-meter companies are the Sifam. Home-site here:
http://www.sifam.com/vuppm.lasso (I have bought VUs from them)

If you could make PCBs I will order at least 4-6 boards from you

Regards
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Flodstroem
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Old 9th September 2006, 12:44 AM   #10
tommak is offline tommak  United States
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I'm also interested!

Does anyone know if this will work well with the Corning pH meter Model 7 meters you can buy on eBay?

I searched the EDN site and found Jon Munson's article on the above design. ( Then I saw that jackinnj also linked to this in another thread. )

http://www.edn.com/contents/images/6280030.pdf

Thanks,

Tom
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