Boy, Larry, you and Dave have been so kind, thanks so much for your help.
I've attached a picture of where the AC comes into the chassis. Thanks for your response, but I'm afraid access to where the power cord "terminates on a terminal strip" is too challenging. And that's because the terminal is under the SDS Labs add-on board that a previous owner installed. (thanks for letting me know CL-60 is insufficient).
Thorne
PS - I tried to remove the SDS Labs board and it won't budge. It is well-attached. I would have to unsolder and cut a whole lot of wires. I can't even slide it over a little to expose the terminal. Sigh. There's has to be a way I can use a DMM to figure out at which wire attached to the on-off switch I can insert the CL80. (he said with great hope) I mean one of those wires must carry the house voltage to the on-off switch which would be where I could attach the CL-80, no? That's where there is the most room for it.
The 3 wires attached to the on-off switch are different colors. They are orangey, light brown and dark brown. Maybe that's a clue? In metalbone's resto kit there is a picture of those 3 wires where they are attached to the terminal of which you spoke. And in that picture he has the CL-60 attached to one of the house AC wires (which also is attached to one of the other AC plug terminals on the back of the unit which is also attached to the orangey wire) and the other side attached to the dark brown wire. What do you think? I've attached 2 pictures. One of why I can't get to the terminal of which you spoke and the other is of how metalbone has the CL-60 attached which shows the 3 wires that attach to the on-off switch.
I've attached a picture (well, my non-electronic art work) of what I think is the way all the AC wires are hooked up to the on-off switch. If I'm correct I would think I could unsolder the dark brown wire from the on-off switch and connect one end of the CL-80 to the unsoldered wire and the other end of the CL-80 to the terminal to which the unsoldered wire was previously attached, right?