[Test-Equipment] HP equip questions

[gil smith]

Hi Stan and everyone:

At 09:54 PM 1/14/02 -0800, you wrote:
>...although HP/Agilent most often used the usual
>A-B-C sequence of suffices to indicate progression of design and/or
>differing sets of features, occasionally there were reasons for
>non-obvious lettering. For example, the HP 5245 counters had both an "L"
>and an "M" suffix. The *only* difference between the two was the
>stability of the timebase, where "L" was the (relatively) low stability
>version and "M" was the medium stability version...

Another question on suffix letters of display mainframes for
spectrum-analyzer use with 855x plugins -- let's see: 
140A original scope frame with round crt;  overlay needed for SA use.
141A (what's different?)
140S round tube; crt maked for SA use?
140T rectangular tube; crt maked for SA use?
141S round STORAGE tube; crt maked for SA use
141T rectangular STORAGE tube; crt maked for SA use
143? some enormous-tube frame I have never seen a piture of.

Maybe they jumped up to S for spectrum-analyzer use?  And T was just next?

I only have the 141T, but I am curious how well a non-storage tube works
for sa use, where sweep speeds can get slow.  Anyone used one of the
earlier frames?  

Is it only the 141S/T frames that have the AUX connectors on the back for TGs?

thanks,

gil




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