[R-390] Service Monitor vs. Stand alone equiptment

[R390rcvr@aol.com]

Dear List folks:

I have a chance to pick up a Ramsey Service Monitor. As a general question, 
how do people like the service monitor approach to radio servicing, 
alignment, etc, vs individual pieces of test equipt?

One other question, somewhat in the same vein. Did HP ever make a 8640, or 
was the 1st one the A, followed by the super popular B?  I have someone 
trying to sell me a 8640(non A, non B). I haven't seen it yet, wonder if they 
are just confused. Or perhaps its me.

Thanks all

Randy