I was searching noise gate and compressors schematic to take ideas for a cheap guitar noise gate design, and I found this pcb layout from Jakob. there was no schematic so I re-trace it.
the filter part is new to me and can be some mistakes there, and one pin of the tl072 is not conected, I believe that it is just a buffer. I forget to put the value of jfet it is a bf245 if I remmember well.
here is the layout.
http://groupdiy.twin-x.com/albums/userpics/10004/Gyraf_NoiseGate_Layout.PDF
and here is the schematic.
http://groupdiy.twin-x.com/albums/userpics/10131/normal_noisegate.jpg
I hope you can help me to find errors.
greetings
12afael
the filter part is new to me and can be some mistakes there, and one pin of the tl072 is not conected, I believe that it is just a buffer. I forget to put the value of jfet it is a bf245 if I remmember well.
here is the layout.
http://groupdiy.twin-x.com/albums/userpics/10004/Gyraf_NoiseGate_Layout.PDF
and here is the schematic.
http://groupdiy.twin-x.com/albums/userpics/10131/normal_noisegate.jpg
I hope you can help me to find errors.
greetings
12afael