Alpha or Acom. I had a THP and it was nothing but trouble. Maybe I got the lemon. They look nice but just did not seem to hold up very well.
I have an Alpha 99 and love it and have owned other Alphas in the past and they were all solid. I have the Acom 1000 and it is great to have an amp on 6m. It tunes easy and works great. It is small enough to consider for a dx pedition or contest expedition. Mike W0MU CC Packet Cluster W0MU-1 W0MU.NET or 67.40.148.194 -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of W0FK Sent: Tuesday, January 19, 2010 10:15 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] [K2] Amplifier suggestions? I haven't operated an Acom, but note that it uses 4cx800's (as do a few other companies). Those have been discontinued, and not having a future source of tubes could be a concern. That's why Alpha switched the tube in its 8400 from 4cx800's to a 4cx1000's (new model is an 8410). The THP is a nice amp, but bear in mind that solid state amps are more sensitive to SWR issues than tube amps. If you don't have good resonant antennas, a tuner may be essential. I also found that the THP 1.5 required 100 watts plus from my K3 to drive it to full or close to full power, whereas my PW-1 and Alpha 87A required a lot less for full output. If I were looking for a non auto-tune tube amp, I'd seriously consider the Alpha 8410, perhaps one that uses 3-500Z's (inexpensive and readily available). Not sure where I'd go on an autotune tube or a solid state amp, other than what I'm currently using. 73, Lou >I am thinking about a move up in power for my K2/100. The reviews >seem to favor an Acom 1000 or Tokyo Hi-Power. What is the collective >wisdom here? Thanks >Dave K6CGE ----- St. Louis, MO K3 #2513 -- View this message in context: http://n2.nabble.com/Amplifier-suggestions-tp4417753p4421482.html Sent from the [K2] mailing list archive at Nabble.com. ______________________________________________________________ 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
