Thanks Don, I'll test it as-is. The 2d connectors are all contacting clean metal, so it should be OK - at least in terms of noise.
73, Jim KO5V -----Original Message----- >From: Don Wilhelm <[email protected]> >Sent: Dec 23, 2018 12:09 PM >To: Jim KO5V <[email protected]>, Elecraft List <[email protected]> >Subject: Re: [Elecraft] XV50 question > >Jim, > >I would have to ask the XV series designer, but he specified that those >transistors be mounted above the board. Likely for LO stability, and >better separation from the ground plane on the board. > >I believe it should work mounted the same way in the XV50. If you find >LO instability, then mount it down on the board. > >If you scraped the paint from all panels where they contact the 2D >connectors and the output jack, there should be little noise conducted >to the inside of the transverter. > >73, >Don W3FPR > >On 12/23/2018 1:30 PM, Jim KO5V wrote: >> First, Happy Holidays to everyone, and thanks for all of the helpful advice >> over the past few months. >> >> >> Here's my question: in the XV144 and XV222 sections of the assembly manual, >> Q1 is installed with long leads, standing above the board. The XV50 >> instructions do not mention this. Should I re-install it in the usual way >> (close to the board), or leave it. Also, can anyone tell me the reason for >> elevating it in the other XVs? That seems like a good way to pick up noise >> to me, but a lot of you have forgotten more than I know about this stuff... ______________________________________________________________ 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 Message delivered to [email protected]
