[meirman]

This is not an urgent question, because I'll probably never use this
part either way, but if you guys know something, I'd appreciate it.

I disassembled a Porter-Cable reciprocating saw, and as usual, I saved
the parts that might be useful some day. The speed control, about an
inch by an inch by a half, has a red dial with numbers from 1 to 6, 3
wires coming out of it, and it has this diagram on the side of it.


/
1_________________/ __________________2
| |
| -------- |
| | | |
| | /| | |
| | / | |_________|
|__| / | |
| \ | |________________3
| \ | |
| \| |
| |
--------

What does this mean? There is no toggle on the box and if they are
saying it is external (and the saw does have a separate trigger
switch), when the toggle is closed the voltage at 1 and 2 are the
same. What is the triangle in the middle of the box mean?

If 1 is supposed to be hot, and maybe 3 is varying hot, why would it
need the wire to 2?

(Sorry, I've thrown away the rest of the saw, but there aren't many
ways it could be wired. Worn out gears that cost more than half as
much to replace as the whole saw does.)

Thanks.

Meirman