On Sun, 28 May 2017 09:57:35 -0400, Ralph Mowery
wrote:

YOu really need to buy one of the used service monitors. They can be
had for around $ 1000. You get a counter signal generator and many more
things.

I'll pass.....
I'd first have to rob a bank anyhow, in order to pay for it, and I think
the bank clerks would just laugh when I pointed a soldering gun at
them... (Or maybe a glue gun, or a caulking gun)