D-AOC PCBs - the building and help Thread

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sorry for maybe stupid question ...
there is much difference in compression using  4 vactrol
or 2 vactrol + 2 LED?
what do you think is the best configuration?
thanks
 
Eje2005 said:
ilfungo said:
I've Kubi mod with 2 vactrol ???

Ok, i removed my kubi mod. Too much for me.

But try the trimmers on the kubimod, Start with Anode on the first one then add a trimmer to the cathode on the second vactrol, if it dosent work switch the second trimmer to the anode instead.

Its a couple of minutes of work but all worth it.

Like silent:arts said, should also work with resistance on the stereo link. But i´m not sure on this.

Me too...kubi mod and i really love it !

So, how should i do the resistance thing on the stereo link switch ? just stick a trimmer on either side of the switch, something like that ???

 
Silvas, you removed the kubi mod?

Dont know about the trimmer on the stereolink, could be worth a shot no?
If it doesnt work just lift the vactrols. Really simple.
 
Eje2005 said:
Silvas, you removed the kubi mod?

Dont know about the trimmer on the stereolink, could be worth a shot no?
If it doesnt work just lift the vactrols. Really simple.

Nope. I wont. I love kubi´s mod !
 
ciao Silvas

I also love the Kuby mod ....
I tried to insert a trimmer on stereo link
I can improve things but not completely fix ...
I do not know if it makes sense to try two trimmer .... ???
 
ilfungo said:
ciao Silvas

I also love the Kuby mod ....
I tried to insert a trimmer on stereo link
I can improve things but not completely fix ...
I do not know if it makes sense to try two trimmer .... ???


Two trimmers on the stereolink makes no sense to me.
Did you try to put the trimmers on the anodes of the vactrols? In not, why? Works perfect here.

I had ~2dB difference between the channels, easy fix with the trimmers. I might try to go back with dual vactrols since i can easy lower the compression with the trimmers.
 
I don't understand what you are asking. The GR meter will never show the actual gain reduction just a mirror of it that is hopefully close enough after you have calibtrated it. You have to do that using something that has a level meter and a signal generator. Adjust the meter to read 0. Insert a signal, for example -10dB, adjust in/out controls til you read -10dB coming back from the compressor with no compression. Turn up the treshold til you read for example -16dB. Adjust the meter to read -6dB. Readjust zero. Repeat on various gain reductions til you find a good compromise over the range of GR you expect to use your compressor.
 
I'm sorry I do not write well in English

I want to do with the meter:
Gain reduction or output level
as any compressor and do not know how to mount the switch
and if you need to change ...
I hope I was clear
thanks
 
Ok, i see. I have magic eye tubes for output metering.

If it's a VU i guess you could just put a 4 pole 2(3) positions rotary (or whatever switch you want) with the meter at the "wiper" and the output on one connection and the GR on the other.
 
Eje2005 said:
ilfungo said:
ciao Silvas

I also love the Kuby mod ....
I tried to insert a trimmer on stereo link
I can improve things but not completely fix ...
I do not know if it makes sense to try two trimmer .... ???


Two trimmers on the stereolink makes no sense to me.
Did you try to put the trimmers on the anodes of the vactrols? In not, why? Works perfect here.

I had ~2dB difference between the channels, easy fix with the trimmers. I might try to go back with dual vactrols since i can easy lower the compression with the trimmers.

This will screw up my nice matching when unlinked ???

Do you mean one trimmer on each anode ? 4 trimmers using kubi mod ?

My temporary solution if i want to use the channels linked is to use it as a M-S compressor, inserting a matrix before and after the DAOC . i've used like this a couple times where i wanted the channels linked and worked great. The small channel mismatch wasn't a problem working like this.

 
Silvas said:
Eje2005 said:
ilfungo said:
ciao Silvas

I also love the Kuby mod ....
I tried to insert a trimmer on stereo link
I can improve things but not completely fix ...
I do not know if it makes sense to try two trimmer .... ???


Two trimmers on the stereolink makes no sense to me.
Did you try to put the trimmers on the anodes of the vactrols? In not, why? Works perfect here.

I had ~2dB difference between the channels, easy fix with the trimmers. I might try to go back with dual vactrols since i can easy lower the compression with the trimmers.

This will screw up my nice matching when unlinked ???

Do you mean one trimmer on each anode ? 4 trimmers using kubi mod ?

Yes 4 trimmers, should work, i never tested it though, like i mentioned above. I will asap.

If you have nice matching unlinked, you can switch in the trimmers along with the stereolink.
 
sorry does anyone know how to connect correctly true bypass relay board? ???

+ 24v to switch and after to the board
- To board
G on board to main ground
is that correct?

thanks
 
ilfungo said:
sorry does anyone know how to connect correctly true bypass relay board? ???

+ 24v to switch and after to the board
- To board
G on board to main ground
is that correct?

thanks

sounds fine. you can use the PoorMan wiring guide for reference.
it doesn't matter if you switch the positive (red), negative (blue) or both wires.
 
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