The best solution, to be on the safe side, is always using the driver (whatever tipe of Flex or other radio)at the max output and use power attenuator at the input of amplifier. If amplifier has RX/TX switching inside, it must be mounted in TX line, not to interfere with RX signal. It is not green, but it assures long happy life of amplifiers and always good matching betwen RTX and PA. It is not "green", but it's efficient at 100%.
Adi S55M -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Lloyd Berg Sent: Monday, October 03, 2011 1:59 AM To: [email protected] Subject: [FlexEdge] Help, I need help! Solid State vs Tube Amplifiers I HAD a THL solid state amp, the FETs burned out after a brief period of use. THL said the spikes coming out of my SDR were to blame. Once repaired, I sold it and now have a tube amp which is working perfectly. Of course I'll probably have to buy new tubes... in about 20 or 30 years! Lloyd - N9LB -----Original Message----- From: [email protected] [mailto:[email protected]]On Behalf Of dan edwards Sent: Sunday, October 02, 2011 4:24 PM To: jim; William H. Fite Cc: [email protected]; FlexRadio Reflector; Bill Marvin Subject: Re: [FlexEdge] [Flexradio] Help, I need help! hey, wait a minute....isnt it saying 'solid state finals are for fat cats...welcome to the club..' a 'boob' who loves tube finals...73, w5xz, dan --- On Sun, 10/2/11, William H. Fite <[email protected]> wrote: From: William H. Fite <[email protected]> Subject: Re: [FlexEdge] [Flexradio] Help, I need help! To: "jim" <[email protected]> Cc: [email protected], "FlexRadio Reflector" <[email protected]>, "Bill Marvin" <[email protected]> Date: Sunday, October 2, 2011, 8:57 PM Wait, wait...I hear the amp whispering. SHHHH...what is it saying? Sounds like, "Toobs is fer boobs." On Sun, Oct 2, 2011 at 9:49 AM, jim <[email protected]> wrote: > DX100 - Good rig!!! > Big enough to stop a fight between a couple of little punks that don't even > have anything with a GOOD vacuum! > > > Jim > W4YXU > > > -----Original Message----- > > From: [email protected] [mailto:flexradio-bounces@flex- > > radio.biz] On Behalf Of Bill Marvin > > Sent: Sunday, October 02, 2011 8:24 AM > > To: 'William H. Fite'; 'FlexRadio Reflector'; [email protected] > > Subject: Re: [Flexradio] Help, I need help! > > > > Bill, > > > > Put a real radio, Valiant or DX-100, on the shelf between these two young > > punks. > > > > Have fun! > > 73, > > Bill - W1MPY > > > > > > -----Original Message----- > > From: [email protected] > > [mailto:[email protected]] On Behalf Of William H. Fite > > Sent: Saturday, October 01, 2011 7:19 PM > > To: FlexRadio Reflector; [email protected] > > Subject: [Flexradio] Help, I need help! > > > > I just built an Elecraft KPA500 to drive with my Flex 5000. However, > > I now have a serious problem. > > > > I put the amp on the same shelf as the radio but every time I walk out of > > the shack the 5000 tries to push the KPA500 off on the floor. I've > > installed sea rails but I need a better long term solution. > > > > Who's our expert on malignant device competition??? > > > > Bill > > _______________________________________________ > > FlexRadio Systems Mailing List > > [email protected] > > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > > Knowledge Base: http://kc.flexradio.com/ Homepage: > > http://www.flexradio.com/ > > > > > > ----- > > No virus found in this message. > > Checked by AVG - www.avg.com > > Version: 2012.0.1809 / Virus Database: 2085/4531 - Release Date: 10/01/11 > > > > ----- > > No virus found in this message. > > Checked by AVG - www.avg.com > > Version: 2012.0.1809 / Virus Database: 2085/4531 - Release Date: 10/01/11 > > > > > > _______________________________________________ > > FlexRadio Systems Mailing List > > [email protected] > > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > > Knowledge Base: http://kc.flexradio.com/ Homepage: > > http://www.flexradio.com/ > > _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.914 / Virus Database: 271.1.1/3933 - Release Date: 10/02/11 01:34:00 _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software. _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
