Altec valve compressors at EMI.

[Dick.1]

I didn't make the connection with SG's but can see how their could be some interest if as (I think) your looking for a cct diagram

This is what I'm looking at with the object of reducing the original "attack speed" of 50ms to as close to 15ms as possible

http://www.dvq.com/hifi/images/436c.pdf


Dick.