30 Nov
2009
30 Nov
'09
2:59 p.m.
Tony Duell wrote:
Why am I telling you this? Well, it's possible
your analyser will not
handle all types of keybaords (I suspect it will handle all country
versions). Do you hapeen to know waht keyboard was origianlly used?
According to the User's Guide for the 16500B:
"This chapter explains how to use the optonal keyboard interface (HP
E2427A Keyboard Kit) and optonal mouse."
So I guess that would be the E2427A. Listed by Agilent as a "HP-HIL
Keyboard that can be used with Agilent instruments".
There are several versions of the mouse (different
shapes, I think maye 2
and 3 utton versions, and different circuits). But I think they're all
pretty mcuh compatible.
The one shown in the 16500B manual looks like someone glued half a
tennis ball to the bottom edge of a cuboid then shoved a cable in the
other end... Very strange.
I can't promise, and I'll haev to dig a bit,
but I may have a UK layout
46021 and a mouse spare.
Al Kossow has already offered me a HP-HIL keyboard (ref: his post at
17:04 in this thread), so thanks for the offer but I think I'm sorted.
What I need to hunt down now are some replacement machine screws for the
mounting feet. Two of the feet have been removed; it looks like the
machine was dropped at some point in its life, and the mounting screws
have been snapped. On top of that, the square-profile metal tabs that
hold the screws have been split apart by the force of the impact.
So basically, what I've got is a pair of feet, no screws, and the metal
the screws screw into is "gone". It extends further into the mainframe a
bit more and there is some more screwthread, but I'm trying to think of
a solution for the lack of metal around what is the main mounting for
the feet.
At this point, my two best solutions are:
- Drill the holes out a bit more (to around M5) and have a local
machine shop make up some threaded inserts -- M5 outside, M3.5 tapped
hole inside, possibly flattened on one end so they can be easily screwed
in. Screw in, build up epoxy putty around the side to replace the
missing metal, reinstall mounting feet.
- Same thing without the threaded inserts. Drive a screw into the
hole, build up the putty and leave it to set (~24 hrs). Remove the
screw, then install the foot and reinsert the screw.
I like #1, it's more effort but likely to produce a stronger result.
What surprises me is that HP only used one M3.5 screw to hold each foot,
and this is on a >20kg machine. My Tek 466 weighs less than that, and
IIRC the screws for the feet on that are around M5-size.
At this point, I would kill for a drill press, a lathe, tap-and-die set,
some metal rod stock and a good book on metalworking...
The screws are listed in the service manual as "Screw, Machine, M3.5 x
0.6, 25.4mm_LG (Back Feet)". Torx T15 head (if memory serves; might be
T10). Naturally the closest I've got is either M3 or M4 and nobody
around here stocks machine screws in small quantities.
Admittedly two broken feet is not the end of the world, but it does make
it something of a pain to angle the front up on the flip-feet...
Ah well. For a few quid under ?140, it's still a steal. Especially
seeing as I got a full set of probes. With HP LAs, documentation and
software can generally be tracked down; probes tend to be rare and
expensive (especially those blasted woven cables).
Thanks,
--
Phil.
classiccmp at philpem.me.uk
http://www.philpem.me.uk/