[Elecraft] KPA500: Bonehead Input Overload

[Bob McGraw K4TAX]

That is a very good argument for having ALC active between the amp and 
radio.    It would have likely saved the amp.

73

Bob, K4TAX

On 5/15/2020 6:12 PM, Andy Durbin wrote:
> Well if it were mine I'd open it up and inspect everything between J3 pin 25 and T1.  I would expect to find a well toasted resistor but I don't know the KPA500 well enough to know which one.
>
> I think this is the third report I have seen on this reflector of a KPA500 blown by accidental high power input since I built mine.    You have my sympathy but it validates my philosophy of using proactive rather than reactive protection.
>
> Please let us know what blew so we can learn from your experience.
>
> 73,
> Andy, k3wyc
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