🚀 go-pugleaf

In article <1992Oct13.182457.17629@cbnewsc.cb.att.com>, jlt@cbnewsc.cb.att.com (jeffrey.r.light) writes:
|> From article <1992Oct13.103101.9825@unix.brighton.ac.uk>, by ddv@unix.brighton.ac.uk (Domenico De Vitto):
|> > It tends to be the expansion of the componets (due to heat) when they get
|> > switched on/off that reduces life more than anything, I think.
|> > 
|> > Dom
|> This subject always comes up, so please "TURN IT OFF" when not in use
|> for many hours, over-night, weekends, vacations, etc.  It will really
|> last much longer.  The expansion of ... is not significant unless you
|> turn on/turn off cycles are very short (less than 15 min and then off
|> for 15 min and keep cycling).  BTW would you leave your car on while
|> you go to work or school?

I think this really depends on the piece of equipment in question.
I wouldn't leave my car running because I know I can depend on it
to start up time after time.

You must not have any WYSE terminals.  I own three WYSE-60s and two of 
them blew a power supply when I turned them on.  The third one hasn't 
blown yet because I rarely turn it off..  (When I leave town, etc...)  
I've seen many more WYSEs with this problem.  WYSE power supplies are 
notorious for being poorly designed and not able to deal with a lot of 
stress.  I don't think the problem is due to expension either.  I believe
the problem with WYSE supplies is that their designs are too close to 
the tolerances of some of their parts.  (The turn-on transients excede
some of the specs and gradually wear some the parts down.)

--zawada

-- 
Paul J. Zawada                                    KB9FMN
NCSAnet Network Engineer                          zawada@ncsa.uiuc.edu
National Center for Supercomputing Applications   ..!pur-ee!zawada

zawada@ncsa.uiuc.edu (Paul Zawada) writes:

>You must not have any WYSE terminals.  I own three WYSE-60s and two of 
>them blew a power supply when I turned them on.  The third one hasn't 
>blown yet because I rarely turn it off..  (When I leave town, etc...)  
>I've seen many more WYSEs with this problem.  WYSE power supplies are 
>notorious for being poorly designed and not able to deal with a lot of 
>stress.  I don't think the problem is due to expension either.  I believe
>the problem with WYSE supplies is that their designs are too close to 
>the tolerances of some of their parts.  (The turn-on transients excede
>some of the specs and gradually wear some the parts down.)

	It's starting to look like Wyse just doesn't offer the reliability
one might expect from a market leader. We purchased a dozen of their 
150 model terminals and suffered failures in three of them in the first few
months. That was quite unlike our earlier experience with Altos-labeled
termnals (which I thought were manufactured by Wyse) some years ago. *Those*
units were so reliable we didn't bother with maintenance contracts. Our
most recent purchases involved Hewlett Packard's 700/60 terminals. They've
proven more capable than the Wyse, and none have failed so far. Quite
nicely priced to boot.
-- 

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