[TenTec] Orion II A9 Board Failure...Again!

Dr. Gerald N. Johnson geraldj at storm.weather.net
Wed Jun 25 18:44:33 EDT 2008


On Wed, 2008-06-25 at 09:55 -0700, pfizenmayer wrote:
> Dunno how the link disappeared - it was on my "sent" .
> 
> http://www.users.qwest.net/~pfizenmayer/
> 
> Subject: Re: [TenTec] Orion II A9 Board Failure...Again!
> 
> 
> > Here is a link to a pretty complete SPICE analysis of the A9 board - its 
> > the
> > bottom line in  the table. The issue is RIPPLE current.
> >
> > Hank K7HP
> >
> 
Work that Tentec apparently has failed to do. Looks like there are
capacitors capable of giving long life in the circuit based on the
computed and rated ripple current, and many that won't give a long life.

73, Jerry, K0CQ



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