[R-390] HP 8640B Question

[rbethman]

Having looked on that Evil Place, I see several up for auction with a 
bunch of pictures.

One in particular shows zeroes across the display AND the switch on the 
rear is set to INT.

I wouldn't place a bid under any circumstances!

Bob - N0DGN

Barry wrote:
> I thought that seeing so many of them with that "symptom", it might mean that the user simply did not know much about them.  Many of the ads state as much.
>
> I've seen a couple of them at hamfests, but haven't owned or used one yet.  I hope to soon, though.
>
> Thanks again,
> Barry - N4BUQ
>