The spec sheet seemed to indicate the devices can be biased for linear operation. But with over 20dB gain, the devices would have to be reined in a bit for USA use. Looks like a pretty rugged device:
"Capable of Handling a Load Mismatch of 65:1 VSWR, @ 50 Vdc, 230 MHz, at all Phase Angles, Designed for Enhanced Ruggedness, 1250 Watts Pulsed Peak Power, 20% Duty Cycle, 100 µsec Capable of 1250 Watts CW Operation Unmatched Input and Output Allowing Wide Frequency Range Utilization Device can be used Single-Ended or in a Push-Pull Configuration Qualified Up to a Maximum of 50 VDD Operation Characterized from 30 V to 50 V for Extended Power Range Suitable for Linear Application with Appropriate Biasing Integrated ESD Protection with Greater Negative Gate-Source Voltage Range for Improved Class C Operation Characterized with Series Equivalent Large-Signal Impedance Parameters RoHS Compliant." ... according to the Freescale Semiconductor web page. But then, I'm a QRP 5W guy.. so I won't be buying any amps. :) 73 de Ray K2ULR On Apr 10, 2011, at 12:31 PM, Joe Subich, W4TV wrote: > > Nice for pulsed or CW devices. How about specs for AB1 service > including standing current and IMD? Standing current (bias) is > critical for heat sink/cooling design. IMD capability is crucial > to how "clean" the amplifier will be. > > Other than those "minor" considerations, a pair of 900W amplifiers > in push-pull (broadband 180 degree splitter and combiner) would > be very nice. > > 73, > > ... Joe, W4TV > > > On 4/10/2011 12:13 PM, Toby Deinhardt wrote: >>>> Not quite what the KPA-1500 promised -- the HL-2.5KFX does >>>> not support SO2R or six meters. >> >> <dream> >> >> Two of these, MRFE6VP61K25H, should do the trick... >> >> </dream> >> >> vy 73 de toby, DD5FZ >> >> ______________________________________________________________ >> 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
