Whoops...make Pentode=Tetrode
On 8/22/2012 8:26 PM, Gary K9GS wrote: > I've been following this thread with interest. > > I have a K3 and an Alpha 8100. The 8100 uses a pair of Pentodes fed > through a swamped grid. I believe the Alpha 99 does as well. I think > this is why Merv and I have never seen issues involving the coax length. > > For the record, the Alpha manual for the 8100 does state to NOT use a > tuner in the exciter. > > > On 8/22/2012 7:10 PM, Merv Schweigert wrote: >> I use a 99 with the K3 and any length coax works just fine, it there is >> SWR on the >> line there is a problem someplace, have never had to cut a coax to any >> particular >> length. >> If theres SWR its either a ground differential problem between the amp >> and radio chassis or the >> tuned input is not correct, or the amps input resistor has been cooked. >> Merv K9FD/KH6 >>> On Aug 22, 2012, at 1:01 PM, Jim Brown<j...@audiosystemsgroup.com> wrote: >>> >>> >>>> You >>>> might try engaging the auto tuner in the K3 if you have one. >>>> >>> Be aware that both the Alpha 87A and 99 manuals tell you "NEVER use an >>> automatic antenna tuner into or through the [87A or 99]. This will cause >>> damage to the Input Wattmeter& Input Relay." >>> >>> It's largely because of this prohibition that I don't even have a KAT3 in >>> my K3. >>> >>> Bud, W2RU >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >>> >>> 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:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> -- 73, Gary K9GS Greater Milwaukee DX Association: http://www.gmdxa.org Society of Midwest Contesters: http://www.w9smc.com CW Ops #1032 http://www.cwops.org ************************************************ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
