I waited about four months but I finally got my EC11J1524802 from Mouser. This one has a life expectancy of one million cycles. I believe the one in the Empeg was rated at fifteen thousand.

Mouse said it was thought the hole mounting but they lie. Still it was not hard to solder the pads to the holes.

Since they had to order 100 for me to get my two they now have 98 in stock.

Now I can turn the volume down without it going full blast or to nothing, nice.