ruckus328
Well-known member
Just wanted to see if there's still an interest for this? I have a current want for this for an upcoming mixing project so in process of doing up a design. Plus my schedule is lightening up and I'm jones'in for a new project anyways and you all know how I loves me some compressors. I know somebody else was working on it but 2-1/2 years with a no show probably means it won't get done.
Anyways, my plans:
-Original circuit of course.
-Options for Jenson & Cinemag 4:1, possibly original Sowter available, waiting to hear back from all of them. Switchable for mic or line input.
-I can add a mix/blend function if you guys want (since I know you'll ask ), just a cut and paste from my version of Keith's CnB schematic so it's fairly easy. Debating between sniffing the dry input right after the input transformer, so In/Out knobs on the compressor will have no affect on the original signal, which normally would be the right way to do it for line levels since you can adjust the input level with previous piece of gear, however if you just plug a mic into this it could cause a problem as dry signal would probably be too low and not adjustable. Sniffing the dry signal after the input knob would mean that by adjusting the dry signal level until desired volume would be simultaneously driving the compression level, which might not be an issue since it will be offset by the mix function itself, but it's almost like the best way would be an additional gain knob for the dry signal.
-48V Phantom? If so probably would be a good idea to disable it when line mode switched in to avoid killing any gear. Thoughts?
-For me this thing is useless without some kind of metering action. Would like to see In/Out and Gain Reduction, undecided on using a good ol VU meter or going with some LED metering. In/Out is easy (I think, actually not sure now that I think about it as might get different readings with the input tranny switching) Not quite sure where best place to sniff the circuit for Gain Reduction would be, thinking somewhere in the vacinity of around the FET biasing.
Also, since I'm sure everyone will want to do this in pairs seems logical to me to make it a dual board. Dimensions shouldn't be that large as it's a pretty simple circuit, so if you just want a single channel you'll just populate one channel on the board.
Anyways, my plans:
-Original circuit of course.
-Options for Jenson & Cinemag 4:1, possibly original Sowter available, waiting to hear back from all of them. Switchable for mic or line input.
-I can add a mix/blend function if you guys want (since I know you'll ask ), just a cut and paste from my version of Keith's CnB schematic so it's fairly easy. Debating between sniffing the dry input right after the input transformer, so In/Out knobs on the compressor will have no affect on the original signal, which normally would be the right way to do it for line levels since you can adjust the input level with previous piece of gear, however if you just plug a mic into this it could cause a problem as dry signal would probably be too low and not adjustable. Sniffing the dry signal after the input knob would mean that by adjusting the dry signal level until desired volume would be simultaneously driving the compression level, which might not be an issue since it will be offset by the mix function itself, but it's almost like the best way would be an additional gain knob for the dry signal.
-48V Phantom? If so probably would be a good idea to disable it when line mode switched in to avoid killing any gear. Thoughts?
-For me this thing is useless without some kind of metering action. Would like to see In/Out and Gain Reduction, undecided on using a good ol VU meter or going with some LED metering. In/Out is easy (I think, actually not sure now that I think about it as might get different readings with the input tranny switching) Not quite sure where best place to sniff the circuit for Gain Reduction would be, thinking somewhere in the vacinity of around the FET biasing.
Also, since I'm sure everyone will want to do this in pairs seems logical to me to make it a dual board. Dimensions shouldn't be that large as it's a pretty simple circuit, so if you just want a single channel you'll just populate one channel on the board.