If I could find a copy of the E series logic card schematic, I could come up with something for you E guys. You just have to break the VCA Fader Solo Cut Bus and put the connection through a switch. Since nobody uses the track arming buttons anymore you could use them as the switch. That switch closes contacts on the logic card you could probably do everything needed on the logic card. I have a very old E manual somewhere in my shop. I’ll try to dig it out and come up with a plan. I did this mod on the early E but that was a long time ago, so I don’t remember how I actually wired it. I also turned the rear bus into another send and the front to rear pan pot into its level control. I think I changed out that pot for one with a switch.
Richard
