[NJARC] Speaker repair

[Rob Flory]

I love the idea of the fabric softener material.  Easy to find and pretty
tough.

Because it is in my drawer already, I might use rubber cement.

I can't remember what I used when I last fixed a speaker cone, over ten
years ago.  Sometimes when I think something is a good idea, it is because
it worked for me a long time ago and I just can't remember doing it.  I
think the converse is true when I am uneasy about an idea.

Rob