Beware, Make Sure Your Amp Is In Standby If You Turn On the K3
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Beware, Make Sure Your Amp Is In Standby If You Turn On the K3
 
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Sometimes I'll walk way from my tube amp and leave it in standby mode and turn off my K3. Well, a few weeks ago I forgot to put it in standby and I came back to the radio from working on my antenna outside and the swr was changed which was set on the tuner. When I turned on my K3, I damaged the amp. I forgot that when you first turn on the K3 that it transmits a signal (the clicking sounds when it fires up) for about a second or so and damaged my amp because of a high swr. Never again I will leave the amp without putting it in standby. Very costly mistake. The amp was set at 1100 watts. To make a long story short, I had the tubes replaced along with other things in the amp and power supply. I could have bought that new P3 for the amount of money that I spent for my error. Now that new P3 will be on the back burner for a while.
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<<Sometimes I'll walk way from my tube amp and leave it in
standby mode and turn off my K3. Well, a few weeks ago I forgot to put it in standby and I came back to the radio from working on my antenna outside and the swr was changed which was set on the tuner. When I turned on my K3, I damaged the amp. I forgot that when you first turn on the K3 that it transmits a signal (the clicking sounds when it fires up) for about a second or so and damaged my amp because of a high swr. Never again I will leave the amp without putting it in standby. Very costly mistake. The amp was set at 1100 watts. To make a long story short, I had the tubes replaced along with other things in the amp and power supply. I could have bought that new P3 for the amount of money that I spent for my error. Now that new P3 will be on the back burner for a while. >> I do not believe the K3 actually transmits RF, although it does close the amplifier relay line connection RF never appears. Mine activates the amp briefly, but does not actually transmit RF. You must have had something else going on. What type of amplifier do you have? 73 Tom ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Like you was told,there must be something wrong in your setup because I do have an Ameritron AL-80B conected all the time to my K3 and more than once I have forgot to turn it down to standby and when turned my K3 back on nothing wrong happend,just heard the amp relay click for a fraction of a second,no damage,no expensive repair.
AD4C "For a refined ham it is compulsory to own a k3" --- On Sun, 4/25/10, Tom W8JI <[hidden email]> wrote: From: Tom W8JI <[hidden email]> Subject: Re: [Elecraft] Beware, Make Sure Your Amp Is In Standby If You Turn On the K3 To: "-.-. --.-N3TU -.-. --.-" <[hidden email]>, [hidden email] Date: Sunday, April 25, 2010, 11:15 AM <<Sometimes I'll walk way from my tube amp and leave it in standby mode and turn off my K3. Well, a few weeks ago I forgot to put it in standby and I came back to the radio from working on my antenna outside and the swr was changed which was set on the tuner. When I turned on my K3, I damaged the amp. I forgot that when you first turn on the K3 that it transmits a signal (the clicking sounds when it fires up) for about a second or so and damaged my amp because of a high swr. Never again I will leave the amp without putting it in standby. Very costly mistake. The amp was set at 1100 watts. To make a long story short, I had the tubes replaced along with other things in the amp and power supply. I could have bought that new P3 for the amount of money that I spent for my error. Now that new P3 will be on the back burner for a while. >> I do not believe the K3 actually transmits RF, although it does close the amplifier relay line connection RF never appears. Mine activates the amp briefly, but does not actually transmit RF. You must have had something else going on. What type of amplifier do you have? 73 Tom ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Could this be related to concurrently keying the K3 with DTR on a
serial connection (or ???) if part of the turn-on routine included bring up a PC with some keying/logging program in the PC's startup list? 73, Guy. On Sun, Apr 25, 2010 at 7:22 AM, Hector Padron <[hidden email]> wrote: > Like you was told,there must be something wrong in your setup because I do have an Ameritron AL-80B conected all the time to my K3 and more than once I have forgot to turn it down to standby and when turned my K3 back on nothing wrong happend,just heard the amp relay click for a fraction of a second,no damage,no expensive repair. > > AD4C > > > > "For a refined ham it is compulsory to own a k3" > > --- On Sun, 4/25/10, Tom W8JI <[hidden email]> wrote: > > > From: Tom W8JI <[hidden email]> > Subject: Re: [Elecraft] Beware, Make Sure Your Amp Is In Standby If You Turn On the K3 > To: "-.-. --.-N3TU -.-. --.-" <[hidden email]>, [hidden email] > Date: Sunday, April 25, 2010, 11:15 AM > > > <<Sometimes I'll walk way from my tube amp and leave it in > standby mode and > turn off my K3. Well, a few weeks ago I forgot to put it in > standby and I > came back to the radio from working on my antenna outside > and the swr was > changed which was set on the tuner. When I turned on my K3, > I damaged the > amp. I forgot that when you first turn on the K3 that it > transmits a signal > (the clicking sounds when it fires up) for about a second > or so and > damaged my amp because of a high swr. Never again I will > leave the amp > without putting it in standby. Very costly mistake. The amp > was set at 1100 > watts. To make a long story short, I had the tubes replaced > along with > other things in the amp and power supply. I could have > bought that new P3 > for the amount of money that I spent for my error. Now that > new P3 will be > on the back burner for a while. >> > > I do not believe the K3 actually transmits RF, although it > does close the amplifier relay line connection RF never > appears. Mine activates the amp briefly, but does not > actually transmit RF. > > You must have had something else going on. What type of > amplifier do you have? > > 73 Tom > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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I had an oddball problem here that does this.
The HAL DXP38 TNC (when turned off!) will key the K3 PTT line when the K3 is turned on. Separate power supplies for each. Computer connected to each. If the DXP38 TNC is on and the K3 turned on, all is well. I have never figured out why this happens but took an "engineering approach" to fix it -- a normally open relay in the PTT line of the TNC which is only activated when the TNC powered. Didn't have this problem with two other rigs. I'm not saying it is the K3's fault..... To find what's going on: 1) disconnect everything from the K3 2) plug one thing at a time back in until you find the culprit. 73 de Brian/K3KO Guy Olinger K2AV wrote: > Could this be related to concurrently keying the K3 with DTR on a > serial connection (or ???) if part of the turn-on routine included > bring up a PC with some keying/logging program in the PC's startup > list? > > 73, Guy. > > On Sun, Apr 25, 2010 at 7:22 AM, Hector Padron <[hidden email]> wrote: >> Like you was told,there must be something wrong in your setup because I do have an Ameritron AL-80B conected all the time to my K3 and more than once I have forgot to turn it down to standby and when turned my K3 back on nothing wrong happend,just heard the amp relay click for a fraction of a second,no damage,no expensive repair. >> >> AD4C >> >> >> >> "For a refined ham it is compulsory to own a k3" >> >> --- On Sun, 4/25/10, Tom W8JI <[hidden email]> wrote: >> >> >> From: Tom W8JI <[hidden email]> >> Subject: Re: [Elecraft] Beware, Make Sure Your Amp Is In Standby If You Turn On the K3 >> To: "-.-. --.-N3TU -.-. --.-" <[hidden email]>, [hidden email] >> Date: Sunday, April 25, 2010, 11:15 AM >> >> >> <<Sometimes I'll walk way from my tube amp and leave it in >> standby mode and >> turn off my K3. Well, a few weeks ago I forgot to put it in >> standby and I >> came back to the radio from working on my antenna outside >> and the swr was >> changed which was set on the tuner. When I turned on my K3, >> I damaged the >> amp. I forgot that when you first turn on the K3 that it >> transmits a signal >> (the clicking sounds when it fires up) for about a second >> or so and >> damaged my amp because of a high swr. Never again I will >> leave the amp >> without putting it in standby. Very costly mistake. The amp >> was set at 1100 >> watts. To make a long story short, I had the tubes replaced >> along with >> other things in the amp and power supply. I could have >> bought that new P3 >> for the amount of money that I spent for my error. Now that >> new P3 will be >> on the back burner for a while. >> >> >> I do not believe the K3 actually transmits RF, although it >> does close the amplifier relay line connection RF never >> appears. Mine activates the amp briefly, but does not >> actually transmit RF. >> >> You must have had something else going on. What type of >> amplifier do you have? >> >> 73 Tom >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[hidden email] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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