Derwin wrote:

But unfortunately it appears I won't be able to try them. The plastic ends on
the sliders don't come off the sliders, they're either glued on or were
manufactured that way, so it is impossible to take off the front panel to get
behind it where the circuit board is. Oh well.

They are glued. Remember, this is the worst grade of mass-market trash
available at the time; it's not designed to be actually repaired. Pry
them off with a screwdriver.

I suspect you will find that there is a bunch of stuff on the board that
you haven't seen yet.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."