Re: [Elecraft] [KPA500] incredible hum from PA

e T, K3ICH; elecraft@mailman.qth.net Subject: Re: [Elecraft] [KPA500] incredible hum from PA Nope. I have one at work and it is quiet. Something is different with this one. As I stated in my original post, I'm confident that Elecraft will make this right. They are great folks over there. -Kevin (KK4YEL)

Re: [Elecraft] [KPA500] incredible hum from PA

lecraft-boun...@mailman.qth.net] On Behalf Of Charlie T, K3ICH Sent: Tuesday, December 20, 2016 4:40 AM To: elecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> Subject: Re: [Elecraft] [KPA500] incredible hum from PA "No trees were killed in the sending of this message. However, a large n

Re: [Elecraft] [KPA500] incredible hum from PA

Charlie T, K3ICH > > Sent: Tuesday, December 20, 2016 4:40 AM > > To: elecraft@mailman.qth.net > > Subject: Re: [Elecraft] [KPA500] incredible hum from PA > > > > > > "No trees were killed in the sending of this message. However, a large > > number o

Re: [Elecraft] [KPA500] incredible hum from PA

] [KPA500] incredible hum from PA "No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced !" Yeah, but you have to realize, electrons LIKE to run around madly. They LIVE for the opportunity to be driven by that strang

Re: [Elecraft] [KPA500] incredible hum from PA

David, The below statement is absolutely true. I am an industrial psychologist (really), and we have made some discoveries about why certain industrial processes sometimes work and sometimes don't. One of our earliest discoveries was the answer to the question: How may psychologists does it

Re: [Elecraft] [KPA500] incredible hum from PA

Wow, another person who ascribes to the theory of Electron Psychology. I have long believed that electrons had feelings and needs. You can explain coax cable losses very easily. All the electrons start down the inner wire, but soon start to wonder if they will ever get to the end. The longer

Re: [Elecraft] [KPA500] incredible hum from PA

Nice! Sadly, torquing it down to the spec (it was assembled by Elecraft just under the spec, by the way) made zero difference. But your post made me smile so thank you. Haven't done that since I got the amp powered on. -Kevin (KK4YEL) > On Dec 20, 2016, at 07:42, Charlie T, K3ICH

Re: [Elecraft] [KPA500] incredible hum from PA

"No trees were killed in the sending of this message. However, a large number of electrons were terribly inconvenienced !" Yeah, but you have to realize, electrons LIKE to run around madly. They LIVE for the opportunity to be driven by that strange (to them) electromotive force, regardless of

Re: [Elecraft] [KPA500] incredible hum from PA

gt; Sent: Monday, December 19, 2016 6:19 PM > To: kevino z > Cc: Elecraft Reflector > Subject: Re: [Elecraft] [KPA500] incredible hum from PA > > Kevin, > > Yes. had the problem. Crazy loud hum / buzz. Bad transformer I was told. > All quiet on the eastern front now. I

Re: [Elecraft] [KPA500] incredible hum from PA

. 73, Ron AC7AC -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of W1GO (Joe) Sent: Monday, December 19, 2016 6:19 PM To: kevino z Cc: Elecraft Reflector Subject: Re: [Elecraft] [KPA500] incredible hum from PA Kevin, Yes. had the problem. Crazy loud

Re: [Elecraft] [KPA500] incredible hum from PA

Kevin, Yes. had the problem. Crazy loud hum / buzz. Bad transformer I was told. All quiet on the eastern front now. If it is a bad transformer it can be fixed but you’ll have to eat the shipping charge. Joe W1GO > On Dec 19, 2016, at 9:10 PM, kevino z wrote: > >

[Elecraft] [KPA500] incredible hum from PA

Just got my KPA500 and KAT500. I hooked the PA up to 240v (well, my Mains are 248v), so I made sure the assembled PA has the yellow transformer tap, from the factory. When I engage the amp, there is a crazy buzz. I use a KPA500 at work, but it is on 120v and I never hear this buzz. Before I