1176 LED Meter

[benlindell]

Does anyone have and idea or design for away to make a LED meter for the 1176? I'm thinking at least Gain Reduction, and maybe also input and output. I've seen ones for GSSL in my searching around but none for the 1176.

Thanks guys.

 

[livingnote]

For input and output the principle is always the same, you can use the
same meter straight away that I'm using for the SSL, with or without
peak hold, 10 or 18 LEDs a bar.

For GR you have to locate where the voltage comes in to control the
shunt and how to branch some off without bothering the chickens...but
should be doable for sure.

 

[martthie_08]

There is a rather unknown 1176ish 1RU device from Audio Concept / Peter Kuhnle, the vibrating affairs cl1200, which has led style metering, maybe you can find schematic for that and get some ideas...

I'll have one on the bench for repair later this week, maybe I can take some pictures.

good luck, Marten

 

[benlindell]

Marten, I did a little research on the device, not much is written about it, I found more pages that are studios that list having one than anything actually about the device. I would love to know how they integrated it. I'll open up my Rev A and measure what's going on with the meter when it's doing it's thing.

 

[benlindell]

I've got a pair of G1176s that I really want to implement a LED GR Meter for them. I imagine I could take the signal that goes to the meter board and it would be 1.227V @ 0dB reduction and it tracks down to around 0V @ -20dB. Is it possible to translate this into something a LM3914 could use and track correctly?

 

[benlindell]

Maybe take something like this and change the comparison resistors?

http://talkingelectronics.com/projects/StereoVUmeter/StereoVUmeter.pdf

 

[benlindell]

I've thought about this more and I'm thinking about using a LM3916 in a standard dot mode configuration  and boosting the signal from the GR meter output and giving it 3 dB of gain so it'll hang on the +3dB light and will go down with more gain reduction since it'll just emulate the VU meter. Does this make sense to do?

 

[pietro_moog]

dude, you had any success with this?

 

[SSLtech]

I've thought about this more and I'm thinking about using a LM3916 in a standard dot mode configuration  and boosting the signal from the GR meter output and giving it 3 dB of gain so it'll hang on the +3dB light and will go down with more gain reduction since it'll just emulate the VU meter. Does this make sense to do?

No need for 3dB more gain... just think about it for a moment.

-All you need to do is turn the GR meter zero trimmer so that it drives to +3VU instead of 0VU.

-Therefore no need to change the meter drive circuit or gain structure!

Keith

 

[Curtis]

Check out Igor's 51X-F76 compressor project for LED meter schematics/ideas.

http://www.groupdiy.com/index.php?topic=43338.0

FWIW I used Igor's drawings as a basis for a rebuild of my Mnats Dual and it works nicely.

http://www.groupdiy.com/index.php?topic=40940.msg550715#msg550715

 

[eltorro84]

There is a rather unknown 1176ish 1RU device from Audio Concept / Peter Kuhnle, the vibrating affairs cl1200, which has led style metering, maybe you can find schematic for that and get some ideas...

I'll have one on the bench for repair later this week, maybe I can take some pictures.

good luck, Marten

Sorry for reviving this old thread, but i am about to buy a kuhnle cl1200 compressor and could not find any information about it in the www.
Can you, @martthie_08 , say something about the build and sound quality of the kuhnle cl 1200? I plan to use it on parallel bus for the main mix.

 

[martthie_08]

so sorry, I don't remember - it's been too long, a colleague of mine had that unit, I only used it briefly...