[Elecraft] Fw: Power supply?

[Richard Fjeld]

Just a comment and a question.
I take care of our club's repeaters. One of the power supplies failed this 
weekend. I watched as smoke came out of it.  It is 20+ years old.  Here is 
the comment;  make sure the fuse on the primary is properly matched, even if 
you choose to go lighter.  (It's not good to work the PS to the max anyway.) 
It may not be possible to fuse a power supply to protect everything in it, 
but at least you can protect the transformer. (I realize this thread is 
talking small for the KX3, but the subject is power supplies.)

Question;  Elecraft radios are protected against low voltage, but what about 
high voltage? I'm wondering if a FUSED Crowbar circuit would be practical. 
The fuse (if any) on the PS 12V leads  is behind the crowbar.  It seems to 
me that a versatle fused crowbar circuit would be good.
Has anybody been there and done that? Maybe someone sells one.  I'm past the 
age when I quit keeping up on components and their specs, so I appreciate 
comments aye or nay.

Rich, n0ce


----- Original Message ----- 
From: "William Levy" <wglevy at gmail.com>
To: <elecraft at mailman.qth.net>
Sent: Tuesday, September 18, 2012 12:02 PM
Subject: [Elecraft] Power supply?


> Don't think we need Elecraft to build us a power supply. It's a pretty low 
> tech endeavor and the supply market is infinite. It makes the same sense 
> as me going into the car biz!
>
> Bill N2WL
>
>
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