[Elecraft] [K3] AGC-OFF

[Kevin Rock]

I just realized I picked up my operating traits of always wearing  
headphones and riding the RF gain 50 years ago.  Shocked me to think I  
have been listening to shortwave for so very long!  I may be getting old  
:)  But I did learn them from a WWII radio man while wearing his vintage  
phones.  All that Marine training sticks after all these years.
    Kevin.




On Tue, 21 Jun 2011 20:22:36 -0700, Ron D'Eau Claire <ron at cobi.biz> wrote:

> Saving that $110 plus postage is one advantage of being a "solder  
> jockey" -
> but I've never managed to damage one of those IC's with a brief signal no
> matter how loud. They saturate, keeping any voltage spikes inside the  
> limits
> they can withstand.
>
> What will kill one, IMX, is a sustained saturated signal (for several
> minutes) that eventually causes the chip to overheat from excessive power
> dissipation.
>
> Big Bear Lake ought to be beautiful this time of the year, Dave. (I was
> raised in Redlands, down below you in the San Bernardino Valley.) But so  
> is
> the central Oregon coast this time of the year :-)
>
> 73,
>
> Ron AC7AC
>
> -----Original Message-----
> 2.  Never use the speaker amp with AGC turned off.  It takes just
> one dit from a loud signal to destroy the delicate speaker
> amplifier IC.  That will require a $110 factory repair, plus
> postage.
>
>
> Dave Hachadorian, K6LL
> Big Bear Lake, CA
>


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