A type of audio processor where a light source is used as a means of controlling the amount of attenuation applied to the audio signal. A form of compression developed in the late 50's and while found mostly in high-end equipment, reissues of "vintage" opto compressors have seen a resurgence lately.

Hey guys, just picked up a new one and wanted to know if anyone has used the sidechain on a CL1B. I want to be able to use it for ducking etc but the manual only references the sidechain to be used to connect to other CL1Bs.

Thanks
Brad

I am looking for a schematic for my CL-1B. If anyone knows where I can get one, or if someone in NYC can lend me one, I would greatly appreciate it. The support at TC Electronic (TUBE-TECH distributors) has failed me.
Thanks