[TR] Positive or Negative Earth

[Chris Simo]

I have a nice Fluke I keep in the garage,  the rest of my triumphs have the
harbor freight meter in the trunk. Most/all of them were bought with free
coupons.  I'll  keep picking them up as more free coupons become available
as spares.

I also keep a test light with alligator leads to do simple testing, one LED
version for polarity and one incandescent flavor for a bit more load
current.