Hello, I haven't a distortion analyzer, so I decided to build a Gssl whit 2180 BL vca.
I read this :
http://diy.fischerworks.com/gssl_vca.shtml
but there aren't two values :
1) 100k ratio adjustment , I think is the same of the 2181, so replace it whit 122 k resistor.
2) 2x 47k the summing network.. I don't know if I have to change that resistors whit two 120k.......
3) Also I would like to have 10 db of gain reduction I know there is something to change... maybe the 1K resistor closed to 1M...
I built 1 gssl unit whit 2181 lb in the past, but without analyzer, it was little bit distorted...
Can you hlep me please !
I read this :
http://diy.fischerworks.com/gssl_vca.shtml
but there aren't two values :
1) 100k ratio adjustment , I think is the same of the 2181, so replace it whit 122 k resistor.
2) 2x 47k the summing network.. I don't know if I have to change that resistors whit two 120k.......
3) Also I would like to have 10 db of gain reduction I know there is something to change... maybe the 1K resistor closed to 1M...
I built 1 gssl unit whit 2181 lb in the past, but without analyzer, it was little bit distorted...
Can you hlep me please !