[Elecraft] [K3] AGC-OFF

Ron D'Eau Claire ron at cobi.biz
Tue Jun 21 23:22:36 EDT 2011


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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