Hey all;

I've got an old tube amp with a lot of hum so I am going to replace the
filter caps. The problem is, they are in a can. The can says
10uF 350 (with a little trangle beside it)
10uF 350 (with a little square beside it)
2uF 350

I think I can figure that part out. The can has 3 terminals and is grounded
to the chassis. Can I assume from this that each of the terminals is the +
of the cap and the - is connected to ground? Also, how do I figure out which
terminal goes to which cap? What do the triangle and square mean?

Thanks