I drive my 811 with 35 watts…and push out around 450…..u can drive it higher to get the full 600, but I have found it wears out the tubes much faster…
My very best to all, George KA3ZHX On Dec 13, 2013, at 12:30 PM, Harold Fitzgerald <[email protected]> wrote: > I used an AL-811H for many years with my K3. Coax connection and PTT is all > that is needed. > > Some other things to think about: > - Ameritron 811H only need about 60 watts or so to drive it. At the > beginning, I ran about 100 watts into the amp, but after a few years I > noticed that the finals had silvery spots on the grids. That's because I was > over driving the amp and melted the them. Only use enough in to get the > required out. 60 to 70 watts is plenty on that amp. > > > Harold "Marty" Fitzgerald W5MF > [email protected] > > > Not an AL-811, but I've used an AL-1200 with my K3. I used an RCA cable for > amplifier keying and a PL-259 jumper for RF. > > I did not connect ALC, I instead adjusted the K3's power output as > appropriate. > > 73 de Dick, K6KR > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of [email protected] > Sent: Friday, December 13, 2013 10:02 AM > To: [email protected] > Subject: [Elecraft] K3 to Al-811 Amplifier > > Hi Guys, I would like to hook up my K3 to an Ameritron Al-811 Amplifier. I > assume that I connect the K3 output to the Amplifier Input. An the Keying > Cable that is in the back to the Relay Plug on the Al-811? I see an ALC > Output and ALC Adjustment knob. But I probably don't need to use those. But > then again I could be wrong. Has anyone used the AL-811 with the K3? Thanks > in advance. Mark Griffin, KB3Z > ______________________________________________________________ > 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 > > ______________________________________________________________ > 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 > > ______________________________________________________________ > 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 > ______________________________________________________________ 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
