Remember: 1) The person who experienced the failure said that he had NEVER used 60 meters! 2) Eric said he was checking to ensure it was actually the 60 meter filter that failed.
Circumstantial evidence so far suggests it was either an EMP from a nearby lightning strike or similar source or it was just a rare bad part that failed after two years under normal stress while transmitting. 73, Ron AC7AC -----Original Message----- From: Elecraft [mailto:[email protected]] On Behalf Of Wes (N7WS) Sent: Thursday, November 12, 2015 3:10 PM To: [email protected] Subject: Re: [Elecraft] KPA500 Protection on 60 Meters What low pass filter level? If this amplifier is going to blow up while delivering specified power then we better be issued new front panels without the 60 and 30 meter buttons. On 11/12/2015 3:43 PM, Roy Morris wrote: > With my KPA500 in OPERATE (asterisk) mode on the 60 meter band, I have > turned down the K3/100 POWER on all five channels to keep my power level > from exceeding the low pass filter level. Hopefully, this will take care of > the matter if I forget to take the amp out of the circuit. Roy W4WFB ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
