Thread: hp141t
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Old July 9th 03, 11:24 PM
Bruno I6YPK
 
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The site is :
http://www.logsa.army.mil/etms/find_etm.cfm

PIN Numbers:

032076.PDF=HP141T
039665.PDF=HP8553
034771.PDF=HP8552
035000.PDF=HP8552
035001.PDF=HP8555
052862.PDF=HP8556
044822.PDF=HP8444
051025.PDF=HP8443

73
Bruno I6YPK
http://www.qsl.net/i6ypk

"Ian White, G3SEK" ha scritto nel messaggio
...
zindazenda wrote:
has anyone got a copy ( that can be downloaded) of the user manual for my
old hp141t..cant seem to get the storage bity working..all else ok..i
think...


There's a US Army site containing lots of scanned downloadable manuals
for test equipment of this vintage... but I've lost the URL - can anyone
help, please?

any repair mods whatso ever would be useful...

as screen intensity seems to be fading, needs to be up 3/4 before

visable,
at full on is quite bright, but seems to be less after trying to get

storage
to work!!just got a REALLY flooded bright screen when switching to

storage,
but no trace, just like someone had thrown a bucket of luminous green

paint
on the screen which slowly ran down the screen!!
any ideas??


Daft as it seems, that actually sounds quite promising! I thought my
tube was dying too, until someone showed me how to set up storage mode.

The optimum intensity setting in storage mode is lower than in normal
mode, and the setting is *very* critical to get a clear and visible
trace with no flare. It should be just below the point where the
background intensity starts to increase very rapidly... but a gnat's
whisker below that, the trace itself is too dim to see! You'll never get
the same contrast between a bright trace and dead-black background that
you do in normal mode.

Keep on experimenting, and you may well find it's OK.


--
73 from Ian G3SEK 'In Practice' columnist for RadCom (RSGB)
Editor, 'The VHF/UHF DX Book'
http://www.ifwtech.co.uk/g3sek