On 2/20/2017 3:11 PM, Matthew Cook wrote: > I believe we will see a return of the 50V MOSFET PA's in commercial > equipment again, especially with the explosion of LDMOS devices and the > ever decreasing availability of 16-18V bi-polar RF transistors.
Modern commercial communication sites have all gone to 48V "Bell Telephone Standard - positive ground" with corresponding radio equipment. Inverters for 120V AC and 12/24V DC where needed. It's a whole new world for us "old timers". 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon VP - General Counsel & Engineering Manager CSI Telecommunications, Inc. - Consulting Engineers San Francisco, CA - Beaverton, OR ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
