New (old) compressor

ooops - wrong link!

Try this for the Time Machine Compressor

http://img78.photobucket.com/albums/v317/StephenGiles/timecomp.gif
Stephen

The link works so have a look!
Stephen

Was ist IC2? RMS converter?

..the VCA. The pin numbering and hookup fits that of the DBX2150..

Yes, it is DBX2150. I've had this circuit since 1989 or so and never noticed IC2 was not labelled. A previous version was published in Home & Studio Recording at the time.
Stephen

what's going on around the release control?


Mark

Thanks for pointing that out verbos, it was originally 2 scans joined together so I must have lost the line in the process, but I've corrected it now.
Stephen

I`ve got a time machine gate that I built from a kit sitting in one of ny racks at the moment. It also uses a DBX 2150.

Rob - I've still got a pcb for that gate which I'll get round to building one day. I built the compressor which worked very well, although it doesn't seem to be in my rack at the moment - must be in the attic gathering dust!
They produced a third unit called Pro Activator (I think) which they sold on to a company called 3G in Southend. This had a potted section with some clever circuitry which may still be around, although I never saw it.
Stephen

verbos, I'll have a guess, c12 is timing capacitor ? in which case the release is the discharge thru Q4 and 5 (as diodes) with a similar arrangement for the expansion release time. RV 4 controls the drop thru Q5 (not quite sure how though). Okay, stop sniggering and correct me.