[Boatanchors] capacitors

[rkerr]

Larry,
The great majority of electrolytic capacitors in commercial 
applications are aluminum types these days.  These should be fine for 
your application.  Military and other high-reliability applications 
often require tantalum electrolytics because of their lower long-term 
failure rates at high operating temperatures, etc., but some tantalums 
may have other problems, such as generally higher DC leakage currents, 
etc.

Bob
WB4TGG



On Thursday, Aug 21, 2003, at 11:20 US/Eastern, telegrapher@att.net 
wrote:

> Ok, here's the situation.  I need some 6uf @ 15 volts or 25 Volt 
> ratings for
> an audio board in my TMC STE exciter.  I've not found regular 
> electrolytics
> with those values.  However i do find "aluminum" style capacitors.  
> Whats the
> difference as far as affecting circuit operation?  Are they a suitable 
> sub or
> should i stay away from them.  The caps i'm looking for are quite 
> small but
> the ones on the board appear to be dried up/shorted/open.  Digikey has 
> some
> with similar ratings but they are the Aluminum Electrolytic style.
>
> Help on this?
>
> Thanks
>
> Larry
> W0OGH
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