[Hallicrafters] Re: RE: Black Beauties in SX-100

[Ken Kaplan]

Glen,




Also, isn't there a significant risk of a catastrophic failure (i.e. short) possibly causing 
precious hard to recover smoke to be released from the receiver? The deadly cap(s) in 
an R-390A come to mind. I haven't yet studied the SX-100 schematic close enough to 
find such possibilities.



Normally I try to observe Roger's motto, {quot}If it ain't broke, then don't fix it{quot}, but sometimes 
it's wise to do otherwise. I guess it all depends. I'm glad the folks in the airline industry 
don't follow that path :-)




73 Ken kb7rgg



> I believe in the same principle.{#160} However, usually
> when the {quot}black beauties{quot} fail it is not in a 100%
> failure.{#160} The equipment keeps on working, but at a a
> reduced efficiency.{#160} You can have numerous leaky
> capacitors and the receiver will still receive.{#160} Not
> as well as when the capacitors are working correctly,
> but often you don't notice the difference right away.
>
> When the capacitors are replaced, the difference is
> {quot}night and day{quot}.{#160} That is why I always replace the
> paper capacitors in any equipment that I own or that
> is sent in for service.
>
> Glen, K9STH
>
> --- {quot}Roger Halstead (K8RI){quot}
> <hallicraftersgroup at rogerhalstead.com> wrote:
>
> I'm a firm believer in the old saying:{#160} {quot}If it ain't
> broke, then don't fix it{quot}. <:-)) Tis true the little
> beauties may give out in the future, but if they are
> working and being used, they may just last a while.
>
> =====
> Glen, K9STH






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