[R-390] HP 8640B Question

[rbethman]

Barry - Not owning one, nor having the manual(s), I couldn't tell you.

I have older HP gear.  A 410B and a 312A.  One is analog all the way, 
the other uses a nixie tube display that always comes up displaying the 
last place it was at.

The 8640Bs were all together something different.  I suspect that the 
issues regarding the gears was some "management" decision to do things 
on the cheap.  Lord only knows what else they did that way.

Bob - N0DGN

Barry wrote:
> I'm curious about something.  Many of the 8640Bs I see display all zeros - 
> apparently on start-up.  Some of the ads state the display simply shows all 
> zeros - apparently even when the frequency change knob is exercised.  Is 
> this a common?  Is there something one has to do to get the frequency to 
> display?
>
> Thanks!
> Barry - N4BUQ 
>